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In this lesson we will be looking at conditions statements in C sharp.

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By now I'm sure we all have the hang of creating new projects.

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So I've already created a new project and I'm calling this one condition statements and I already cleaned

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out the main function to put in some comment and so you can pause the video here.

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Go ahead and create your new project inside your solution.

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And once again it is called condition statements.

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No.

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A little prelude before I get into what condition statements really mean.

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I want us to examine something about programming in general.

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Most if not all.

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Well every programming language has three control structures.

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They are sequence decisions or selection and repetition sequence basically refers to the fact that the

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program is going to execute the commands in the exact order that you placed them.

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So in previous examples are we printed a prompt and then we waited for input and then we prompted again

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notice that it went in the exact sequence that we wrote.

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So that's the sequence.

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However when we get to our roadblock and we need to maybe make a decision to see if something meets

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a certain criteria then take this action or take on other action then that is another control structure

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called selection or decisions.

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Knowing this lesson we'll be exploring two condition statements that help us to make selections.

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They are if statements and switch statements and then we're going to look at ternary statements as a

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bonus.

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Let's get started looking at if statements are typical reason what we would need to use and if statement

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is to determine something or some action based on some condition.

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So let's just say that I wanted to bring something to the screen if something was the way that I think

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it may or may not be right.

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So let's just say I wanted to see if and when to keep it very simple and I'm going to say something

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like If tool is less than 3.

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So notice this is a new operator we did arithmetic operators earlier.

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We'll have the comparison operators where we're comparing is to greater than or less than this is less

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than three.

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All right so tool is less than three if two is less than three.

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Then I want to do something.

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Please note the syntax behind this statement.

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The key word is if then I open parenthesis then I place the condition inside of the open parenthesis

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and then I close.

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So inside of the parentheses I should have a condition is something maybe equivalent to something.

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Is it less than is it greater than there are so many ways we can compare things.

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But I'm just checking if 2 is less than 3.

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Then I want to print something to the screen so I can see a console dot right.

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Line and then went to say yes it is all right.

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So then I can see if 2 is less than 3 then print.

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Yes it is.

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What if there was another condition or if I didn't if that wasn't the condition then I wanted to take

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another action.

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So if it is then print print.

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Yes it is.

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And then I can see else.

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And then after this I need my current braces again.

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And then I want to see what what would I do if this condition is not met.

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Someone to take this console that line and duplicate it just to expedite this and I'm going to say no

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it is not.

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So once again I am seeing if two is less than three then print.

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Yes it is.

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Else print.

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No it's not.

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Now you notice that this line kind of looks a bit green dot are kind of dull and Visual Studio is basically

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just telling me that based on the condition that I specified here I would never ever get to the OS which

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is true because every time when winter on that unless I change these values to will always be less than

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three.

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So yes it is will always get printed.

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The Ls would never get printed but I'm still going to leave the L's because then I'm going to show you

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different conditions that can go in here and hold the code would be executed.

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So let's execute this and see the end result.

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So once again it's going to run in the sequence and it's going to see if 2 is less than 3.

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What should I do.

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So let's check that out.

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So remember that you can change your starter project using this dropdown.

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Let's just make sure that it's on condition statements and go ahead and click Start and the end result

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is that it prints.

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Yes it is.

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And that's because the condition was true.

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No.

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If I change these values to something that I want to say no it's not then I can say is 10 less than

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maybe three are.

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I'll leave the three.

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So if 10 is less than three then we want to print.

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Yes it is.

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Else print.

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No it's not.

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No.

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Just looking at it we know that 10 is not less than 3 so we expect that this condition will not evaluate

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to True those it won't do what is in the first block but it will do what's in the else block.

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So else is basically the force for any condition that is outlined instead of the if.

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So let's try that again.

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I want to run the program and the expectation is that it will say no it's not because 10 is not less

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than 3 and there we go.

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No it's not all right.

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So that's a very very simple example let's put up a bit more meat on it so I'm going to find some variables

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I'm going to define number one and number two also int num 1.

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And please note with variables I may not have mentioned this before but when you're using variables

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or when you're declaring variables you want to avoid spaces in the names and you want to avoid special

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characters almost the same rules as when I suggested how you name your projects.

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You can chemically case the names if you have multiple words some people use underscores but ultimately

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just avoid any space and any special character.

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All right.

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So no one is going to be equal to two and Noam two is equal to five and see in doing that I violated

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my own rules and Visual Studio is telling me that I'm wrong.

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So int num 2 is equal to 5.

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And before I use these two variables in the example I just want to take this time to list all the other

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comparison operators that you have to your advantage.

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So you have.

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And I'm just putting the brakes there so you can see them so you have the less than you have greater

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than you have equivalents.

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So notice 2 equals science or the equal sign by itself is an assignment operator where you're assigning

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a value from the right to the variable on the left.

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However if you want to compare if two things are equal to each other then you have the equal equal all

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right.

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So that's the distinction between a single equals and a W equals side.

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So we have equal equal.

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We have hybrid ones like greater than and equal or less than an equal.

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And then you have one that say is not equal which is an exclamation sign an equal sign.

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All right so those are operators that you can use inside of your if statements when you want to compare

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the value on the left with the value on the right.

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Okay.

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So don't we have no one to name two.

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We did this with static values but we can also write an if statement with variables.

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All right.

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So I could be comparing number one with the number three so I couldn't say if no one is less than three.

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Then I want to take this action otherwise I want to take that action.

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All right.

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So in this situation I have no one declared to have a value of two.

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So if I execute this then two is going to be less than three or verify I said No I'm five here based

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on the value of num five then num five oh sorry num two sorry.

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Number two has the value of five my butt.

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So if I say no two is less than three as long as Num two retains the value of five then we we'll know

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that it is not less than three.

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And so it will go to the else block and print.

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No it's not.

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So you can use variables to compare with static values and you can also compare two variables.

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Number one and number two.

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All right.

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So here's what I'm going to do.

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We're going to write a full program where we're accepting data from a user and then we will run an if

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statement to know what to print or based on the input from the user.

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So I'm going to write a program that's going to ask our users to tell us how many apples they have and

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how many oranges they have someone to console a lot.

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Right.

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The first problem to see how many apples do you have.

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And then we'll do a console dot read line where we get the inputs but then of course we can just console

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that read line this value needs to go even to a variable someone's use no one to store the number of

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apples.

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So no one is equal to the console that read line.

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And then we know that no one is an integer.

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So if we're putting something into the integer from the console inputs we need to convert it someone

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to say convert dot to int 32 and then open for in the CIS and close parentheses around that and then

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I'm just going to copy this line and settle for typing it from scratch and then I want to say how many

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oranges do you have and we're storing oranges in Gnome 2.

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So no I have user input for gnome 1 and user input for gnome which of course will override the values

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that they were initialized with because I'm not going to trouble the initialization here or at least

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I would always recommend that if you're initializing you always initialize to a safe enough value that

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you know it doesn't tamper with your operation going forward.

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So we're initializing gnome 1 to 0 and num 2 to 0 and then we're prompting for the number of apples

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and starting that's in num 1 and then I'm prompting for the number of oranges and storing that in num

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to know my if statement is seeing if number two is less than number one then I want to take a particular

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action but then I feel probably more comfortable saying if gnome 2 is greater than no one it really

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doesn't matter.

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So based on your context and based on how you probably would want to if you can see it in English or

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see it yourself how would I compare these two.

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Then you can just translated into code using the appropriate operator.

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All right so I'm going to say if no one is greater than num 2 then that means that I would have more

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oranges.

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So gnome 2 represents oranges so if num to is greater than the one that I have more oranges than I have

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apples so then my console or a lion is going to be you have more oranges and then if I if that is fours

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meaning num two is not greater than no one then I'm going to print you have more apples

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not less.

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The quick test and see the Oh come off that.

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So how many apples do you have.

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I'm going to say I have two apples and I have five oranges.

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So the expectation is that it brings you have more oranges.

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Alright let's do another test where I flip the script this time I have ten apples and I have five oranges.

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And so when that evaluates in my if statement I should be getting you have more apples.

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There we go.

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So that's basically what a selection does it looks at a condition and then it makes a decision based

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on the outcome whether it's true or false for that condition.

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Now the if statement can be expanded a bit more and I'm just going to do this and then we leave if statements

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for no because if statements are very useful and as we go along we will be using them and see more purposes

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but I just want us to have an appreciation for how they work and why we will be meeting them going forward.

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But the if statement can also have more than one or more than two blocks so right now we're just looking

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at if condition and then else but then you do have the facility to have multiple conditions in one big

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if statement so I can see if not two is greater than no one then print you have more oranges then I

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can see else if I then state another condition so I'm going to see if no one is greater than gnome 2

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no one being apples and no to being oranges.

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So first I'm taking to have more oranges than apples that I can see otherwise if there are more apples

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and oranges then I want to print you have more apples What if I wanted to add on another statement and

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other condition I said else if and then state another condition and then for that part I would want

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to see if they are equivalent.

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So I can see if no one is equivalent to Gnome 2 then open Bruce console the right line and then I'm

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going to see you have booths or let me say the same you have the same number of apples and oranges.

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Now we have one if statement doing three different conditions.

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All right.

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So I've if num two is greater than num 1 then 4 in something else if no one is agreed to then to then

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print something else if no one is equivalent to Gnome 2.

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So there are plenty of ways you could have written this but then I mean there are so many ways or at

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least I can negotiate every single scenario.

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Once you appreciate the concept then you can be more flexible.

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So in this situation once again I'm just checking if num two is greater than no one then I want to print

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you have more oranges.

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And then if that doesn't evaluate to True then moves on to the next statement to see console the red

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line you have more apples right.

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And if that evaluates the falls and he moves onto the next condition where it says okay if they're equivalent

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then print this statement.

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No there are situations where none of these would ever match and then that's why you have the L so the

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S is that a catch.

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All right.

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So if we have an S.

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You usually use that to say whether when every other condition fails then take some action.

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And this is once again is a catch all.

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So I went to see final action.

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Ah well invalid parameters No.

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Based on this example I don't know what I could possibly put in that none of these would get met.

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And further to that the comparison far greater than an equal to unless that an equal to would not fit

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into this scenario.

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And well we always expect it if one of these would be met then clearly they're not equal right but then

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the case study or the use cases for these rather would be like if you are comparing grades.

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Right.

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So if the grades start at maybe an A starts at 90 then you can see if you have agreed that is greater

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than or equal to 90.

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Then you have an E.

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If they fail a failing grade is fifty nine then you can see if you have agreed that is less than or

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equal to fifty nine then you are a failing student so you could have done the greater than an equal

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to for that A.

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Or I could have just said if your grade is greater than eighty nine because then we know that anything

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greater than 89 is probably 90.

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But then based on the scenario once again you may or may not need to use it or you can use multiple

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to accomplish the same thing.

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Anyhow let's run a test on this so I'm going to put in some scenarios where I'm going to put in some

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values and then we should put in values that will invoke each statement as we go along.

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Once again the L statement may never get called because one of these conditions will be met anyway so

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let's try it out.

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So firstly we want a bigger number for num 2 than for an on one.

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So we want more oranges than apples.

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So 5 apples and then I have 10 oranges.

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So num 2 is greater than no one.

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So you have more oranges all right.

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Let me run this theme and this program again this time I have more apples than oranges of ten apples

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and I only have five oranges then it is you have more apples.

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So this condition for no one being greater than num num 2 being greater than on one field.

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So it went on to the else if and then this condition was met.

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So it printed that statement.

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Now if I have the same number between the two fruit types.

242
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So that means I have ten oranges and ten apples when I press enter.

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Then it went to the else.

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If they are equivalent then you have the same number of apples and oranges.

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All right.

246
00:18:09,310 --> 00:18:13,420
So there are some rules surrounding whole if statements should look.

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Notice the special toolkits that I've been using along the way.

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The key words if and then the parentheses and then the condition inside the parentheses and then notice

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no semicolon at the end of this line.

250
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And then I opened the curly brace and then the C sharp syntax as we've come to Lloyds with all the consular

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rights consular read line whatever it is that we're doing that those can proceed but then only between

252
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the braces so I can put any code in this line I can't be console the right line in between the if block

253
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just like that.

254
00:18:48,190 --> 00:18:49,060
Right.

255
00:18:49,120 --> 00:18:49,990
That is illegal.

256
00:18:50,020 --> 00:18:54,790
So when it whatever operation it is you need to carry out a notice of that red line.

257
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So it's saying that it's expecting it's incorrect syntax for a bill until you details about the incorrect

258
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syntax but just follow these rules and you will should feel comfortable in writing your statements.

259
00:19:06,730 --> 00:19:15,460
So once again you have a condition you have an if statement sorry you create the condition inside of

260
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the parentheses and then you open the curly brace and then you proceed to write all your code inside

261
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of your curly braces whatever you're acting instead of the curly braces is what gets done when that

262
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particular condition is met.

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So if num two is greater than on one then I want to take this set of actions.

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Else if this other condition is met meaning this one failed but then this one gets met then I want to

265
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carry out these actions and then I have another s if if this condition is met then I have my specific

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actions and then my eldest is the catch all meaning that none of these came to pass.

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None of them matched my requirements so that else would be that a catch all.

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00:20:02,770 --> 00:20:08,670
So you know based on the situation then it may be good it may not be but so in this situation if it

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will go to the else I know that that's bad because that's not what I expect.

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However in our first example you saw that I only had if condition and then else.

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So when it's a simple condition where it's either R it's it's either this condition is true or it's

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not true then you can just use an if else if you have five different scenarios that you need to test

273
00:20:28,120 --> 00:20:34,810
or in this case three different scenarios you need to test then you can write if elusive else if and

274
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if you know that they're the only three then you really don't even need the else.

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So it can work without the in this scenario like I said this is an introduction and so we're just scratching

276
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the surface with statements but I'm going to move on to switch statements which help us to make selections

277
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but just do it a bit differently so that your statement gives us the ability to make more complex decisions

278
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where we can see if something is greater than we can compare to values or some variable to some other

279
00:21:03,680 --> 00:21:09,410
value whatever it is or comparing and then make an action the switch statement over we have to look

280
00:21:09,410 --> 00:21:16,070
at a variable and then make a decision based on just the value of the variable.

281
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So I'm going to give you an example.

282
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So the switch statements look something like switch and then it takes a variable inside of the parentheses.

283
00:21:25,460 --> 00:21:29,780
So what I'm going to do is to find another variable and I'm going to call this one num three so into

284
00:21:29,780 --> 00:21:33,340
num three and it's going to be equal to zero.

285
00:21:33,350 --> 00:21:40,850
All right so I'm going to see a switch num three which means assess the value inside of num 3 then I'm

286
00:21:40,850 --> 00:21:45,730
going to see keys and then I can give a value.

287
00:21:45,740 --> 00:21:51,960
So case 1 then call on so please note the syntax because this is very important that you follow the

288
00:21:51,960 --> 00:21:59,960
syntax properly so you see a switch open various or open parentheses put a variable in there and then

289
00:22:00,200 --> 00:22:07,070
you open your current embrace and then you make a key CSA case then the value that you want to assess

290
00:22:07,370 --> 00:22:08,540
this variable for.

291
00:22:08,540 --> 00:22:16,640
So I'm seeing if the value of num three is one then I say call on what comes after the call on is the

292
00:22:16,650 --> 00:22:25,910
action I intend to take so that I'm want to see console that right line and let's keep it simple and

293
00:22:25,910 --> 00:22:26,430
just save.

294
00:22:26,430 --> 00:22:29,400
Value is one.

295
00:22:29,590 --> 00:22:30,360
All right.

296
00:22:30,420 --> 00:22:36,260
And then after I say that then I need a keyword so I can list as many actions underneath this.

297
00:22:36,260 --> 00:22:41,460
So what comes after the case would be just that what comes inside the curly braces for the if statement

298
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but then I have to end the case with a keyword that says break.

299
00:22:46,620 --> 00:22:47,280
All right.

300
00:22:47,280 --> 00:22:55,920
So I can see Case 1 consular land value is 1 so I'm just want to copy this I can retype it then what

301
00:22:55,920 --> 00:23:04,170
if I wanted to do something else if the value was to so I have case to call on then I state my action

302
00:23:04,350 --> 00:23:09,630
someone to console the right line and I don't want to change it from values 1 and say something like

303
00:23:09,990 --> 00:23:12,780
I have to know.

304
00:23:12,830 --> 00:23:13,540
All right.

305
00:23:13,560 --> 00:23:19,590
So I have to know if the value is to print I have to know to the screen and then once again I can print

306
00:23:19,710 --> 00:23:28,110
as many things as I want or take as many other actions as I need to someone to print this three times

307
00:23:28,290 --> 00:23:29,560
or three more times.

308
00:23:29,580 --> 00:23:34,650
So and this is just for example I'm just showing you that you can have multiple lines coming.

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00:23:34,680 --> 00:23:41,700
Often these after the case and the value and the call on and then when you're done you just make sure

310
00:23:41,700 --> 00:23:48,660
you put your key word that is break if you don't put the brake keyword and let's say I forgot the brake

311
00:23:48,660 --> 00:23:54,840
keyword then what would happen is that it would just run on so he can have as many cases as you feel

312
00:23:54,840 --> 00:23:56,040
the need for it.

313
00:23:56,040 --> 00:24:03,830
So as many situations or cases that you think are values that you want to compare this variable again

314
00:24:03,930 --> 00:24:09,000
you can have case now whatever that value is since we're using integer we just put the value as integer

315
00:24:09,030 --> 00:24:14,370
if this was a string then I would be seeing keys and then putting in the string.

316
00:24:14,880 --> 00:24:20,130
But then we have to keep it type sensitive so if it's an integer variable that we're assessing then

317
00:24:20,130 --> 00:24:25,590
the key is value must be an integer if it's a double then well it has to be numeric if it's integer

318
00:24:25,620 --> 00:24:32,460
double if it's a string then it must be a string but then otherwise we have similar to the Ls in the

319
00:24:32,460 --> 00:24:41,820
if statement we have a default situation that says well if none of the cases match then I am going to

320
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do something.

321
00:24:42,480 --> 00:24:50,130
So I'm went to inside of the default this console right line and see invalid value.

322
00:24:50,130 --> 00:24:57,780
All right so I'm only comparing 4 1 and 2 which means that if if GNOME 3 is never 1 and not 1 3 is never

323
00:24:57,780 --> 00:25:05,950
2 then I want the default to come into play and see invalid value and then once again I break once I've

324
00:25:05,970 --> 00:25:08,990
done that everything is inside of that curly brace.

325
00:25:09,090 --> 00:25:13,160
So I'm just going to put in a prompt for gnome three at the same time.

326
00:25:13,170 --> 00:25:20,250
So after we do with our apples and oranges I'm going to see how many eyes do you have.

327
00:25:20,250 --> 00:25:21,130
That's a good one.

328
00:25:21,130 --> 00:25:21,690
That's right.

329
00:25:21,720 --> 00:25:28,290
It's either one eye or two eyes but then I I'm just going to say invalid value if you put any other

330
00:25:28,290 --> 00:25:30,570
number that's not one or two.

331
00:25:30,630 --> 00:25:30,900
Right.

332
00:25:30,930 --> 00:25:35,010
So how many eyes do you have.

333
00:25:35,010 --> 00:25:38,420
And then I'm going to console the right.

334
00:25:38,470 --> 00:25:39,080
Right.

335
00:25:39,170 --> 00:25:41,910
Red line sorry into num three.

336
00:25:42,180 --> 00:25:43,370
So let's test that one out.

337
00:25:43,380 --> 00:25:49,710
So I don't want off to do all of this again so I'm just going to comment oat my if statement.

338
00:25:50,190 --> 00:25:54,590
So the shortcut to comment is control key and see.

339
00:25:54,610 --> 00:25:54,890
Right.

340
00:25:54,900 --> 00:26:01,410
So holding on after highlighting the lines I just held on control of press K press C and then all of

341
00:26:01,410 --> 00:26:06,540
those lines that were highlighted got commented so no when I execute my program is going to ignore the

342
00:26:06,540 --> 00:26:11,190
comments on lines and just go straight to asking me how many eyes do I have.

343
00:26:11,190 --> 00:26:15,400
And then taking an action based on our values.

344
00:26:15,410 --> 00:26:20,700
So I have one eye then I want to say value is one.

345
00:26:20,720 --> 00:26:21,160
All right.

346
00:26:21,350 --> 00:26:23,140
Maybe I can make it a bit more intuitive.

347
00:26:23,150 --> 00:26:26,620
Some want to change it and see you have one.

348
00:26:26,630 --> 00:26:26,950
I

349
00:26:30,940 --> 00:26:36,630
write this is just for educational purposes it's not really necessary.

350
00:26:36,630 --> 00:26:42,130
So if you don't feel like changing it then that's fine but you have one eye and then I want to try it

351
00:26:42,130 --> 00:26:44,780
again and then I'm want to put in the value too.

352
00:26:44,890 --> 00:26:50,770
So with two we expect to have four statements being printed and I have to know it's printed four times

353
00:26:50,770 --> 00:26:56,350
so once again you can have as many lines as required underneath the key.

354
00:26:56,360 --> 00:27:03,010
So in between the case definition and the keyword break everything in there will get executed.

355
00:27:03,310 --> 00:27:09,880
So let's do another one and we will put in the value of three so three since there is no case defined

356
00:27:09,880 --> 00:27:15,270
for a value of three we'll go to the default and tell us in valid values.

357
00:27:15,280 --> 00:27:18,380
So that's basically how such statements work.

358
00:27:18,380 --> 00:27:20,170
A good use case for us suits them.

359
00:27:20,170 --> 00:27:25,690
It would be like in a menu setting where you're expecting certain values so if you say like Press 1

360
00:27:25,690 --> 00:27:35,020
to enter grade press 2 to view grade press 3 to exit program then you could just see get the user's

361
00:27:35,020 --> 00:27:43,060
input into the variable and then you were a switch against that value and then based on which case was

362
00:27:43,090 --> 00:27:46,240
chosen or which value was selected you run a case for that.

363
00:27:46,390 --> 00:27:52,690
You take the actions accordingly and then if they enter a menu option of 5 when you only have three

364
00:27:52,690 --> 00:27:55,370
menu options then you have the default.

365
00:27:55,410 --> 00:27:56,460
All right.

366
00:27:56,490 --> 00:28:01,510
Now as a bonus I'm going to show you ternary statements and I left this one for last because this one

367
00:28:01,510 --> 00:28:07,510
can be a bit difficult to grasp and they are always our own using it but it can be a bit difficult but

368
00:28:07,510 --> 00:28:08,980
it's very very convenient.

369
00:28:08,980 --> 00:28:10,630
Once you understand how it works.

370
00:28:10,630 --> 00:28:16,150
So I'm going to find another variable and I'm going to call this one result.

371
00:28:16,180 --> 00:28:20,920
So this one is going to be string and I'm calling this results all right.

372
00:28:21,370 --> 00:28:22,120
No.

373
00:28:22,120 --> 00:28:27,970
The purpose of the Turner operator is to run a quick comparison and it allows you to decide right there

374
00:28:27,970 --> 00:28:35,190
on the spot what value to assign to a variable when that condition is met are not met.

375
00:28:35,200 --> 00:28:41,800
So in other words with our if statement if I said no to greater than no one I could have done an assignment

376
00:28:41,830 --> 00:28:47,860
to a variable in here but then I would have to say number tool is equal to the num num 1 groups that

377
00:28:47,860 --> 00:28:52,820
I known to and then do another assignment here and then on this one after do another assignment.

378
00:28:52,900 --> 00:29:02,710
Whereas in a ternary operator I can see the result is equal to and then what I want to compare is num

379
00:29:03,100 --> 00:29:06,140
to being greater than no one.

380
00:29:06,220 --> 00:29:07,690
All right so this is my condition.

381
00:29:09,020 --> 00:29:17,100
And then I can use a call on and then I see and I think usually this needs to go inside parentheses.

382
00:29:17,100 --> 00:29:19,070
So as this puts it in parentheses.

383
00:29:19,200 --> 00:29:22,340
So then I say this is my condition.

384
00:29:22,380 --> 00:29:24,320
And then question mark sorry.

385
00:29:24,360 --> 00:29:30,980
Question Mark and then I'm going to see no one greater then no to greater than no one.

386
00:29:31,050 --> 00:29:37,110
Then I'm going to say what what did we assign more oranges.

387
00:29:37,110 --> 00:29:44,280
You have more oranges when that is so you have more oranges and then call on and then we're going to

388
00:29:44,280 --> 00:29:47,980
say you have more apples all right.

389
00:29:48,280 --> 00:29:49,830
So let me just start over.

390
00:29:49,840 --> 00:29:50,980
I just happened.

391
00:29:51,120 --> 00:29:59,340
So we have a variable and then I'm seeing what the contents of this variable depend on the outcome of

392
00:29:59,340 --> 00:30:00,270
this comparison.

393
00:30:00,990 --> 00:30:07,790
So my variable result is going to be assigned some value based on the result of this compiler.

394
00:30:07,790 --> 00:30:16,080
So what you see is num to agree to that number one then I have the question mark to see if this is true.

395
00:30:16,140 --> 00:30:23,220
So all of this is seeing if this comparison is true then I must say ending that value to the inside

396
00:30:23,220 --> 00:30:29,130
of result and then the colon says otherwise it is this value.

397
00:30:29,160 --> 00:30:33,260
So the quick thing the good thing about this is that in one line I just run a minute.

398
00:30:33,270 --> 00:30:35,240
If else statement.

399
00:30:35,270 --> 00:30:35,730
All right.

400
00:30:35,730 --> 00:30:42,780
The downside is that that's all I can do I can't of a third scenario to say if if the greater than are

401
00:30:42,930 --> 00:30:45,900
their equivalent sorry I can't of a third scenario.

402
00:30:45,900 --> 00:30:51,660
So I just want on one condition and then I say based on the outcome what if it's true then I want the

403
00:30:51,660 --> 00:30:55,360
first one to be done if it's false and I want the last one to be done.

404
00:30:55,720 --> 00:30:57,510
Now once again this comes in handy.

405
00:30:57,510 --> 00:31:01,380
A lot of the times but the if statements are very easy to do.

406
00:31:01,440 --> 00:31:04,420
Such statements are very quick also.

407
00:31:04,530 --> 00:31:11,580
But then this if you understand the concept you can use this at any point and expedite completing your

408
00:31:11,580 --> 00:31:13,800
program that you are authoring.

409
00:31:13,800 --> 00:31:21,850
So I'm going to leave this program went to on commend all of these lines so that if you get your hands

410
00:31:22,000 --> 00:31:28,830
on the source code then you have all of these examples for you and so on comments that's control k you.

411
00:31:28,870 --> 00:31:30,330
So let me just show you that.

412
00:31:30,340 --> 00:31:35,530
So if I am on another line and I want to come into it I can just say control Casey and then it commands

413
00:31:35,530 --> 00:31:40,930
it and then if I want to on comments I can just say control key you and there you go.

414
00:31:40,930 --> 00:31:44,630
So you press K and you can see while holding don't control.

415
00:31:45,020 --> 00:31:48,250
All right so that's it for condition statements.

416
00:31:48,250 --> 00:31:50,470
That's a brush over.

417
00:31:50,470 --> 00:31:52,010
I hope you understand the concepts.

418
00:31:52,030 --> 00:31:53,840
If you don't feel free to reach out to me.

419
00:31:53,920 --> 00:32:01,210
But as you go along we're going to be using them more and more so you will get to appreciate real scenarios

420
00:32:01,210 --> 00:32:07,660
where you will need to make selections and decisions based on values that are coming into your system.