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Hello and welcome to this late show on for loops a for loop is basically a repetition control structure

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so there are times you may want setting codes to run repeatedly within an application.

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For example you can have an application that's called several arrays.

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You may want the number you may want a mechanism or a structure that all makes setting codes execute

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by iterating true the arrays or some parts of the application.

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So the for loop can be used as that kind of repetition control structure.

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OK.

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So with the for loop you can specify how many times you want a piece of code or a loop to execute.

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You can specify the number of times you want the loop to execute the syntax syntax basically refers

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to the structure of a loop how you define the loop.

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So this is how you basically to find the loop.

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You start with the word for and then he takes in three parameters.

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So this is basically the control flow of the loop.

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So you've got the first condition which is the initial.

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And then you've got the condition.

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This in this one is this step is executed first and only once then you've got the condition.

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All right.

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The condition is evaluated if it is true the body of the loop is executed if it is false the body of

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the loop does not execute and the flow control jumps to the next statement after that loop.

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This the increment after the body of the after the body for the for loop was that is executed.

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The increment the flow control jumps back to the increment statement and then allows you to update any

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loop control within that with any control variable within the loop some someone to illustrate this with

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a.

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So that makes more sense.

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So basically you specify a loop like that and then whatever statement or block of course you need to

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write goes in between this curly braces.

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So let me illustrate that this is a flow diagram of how the loop process works.

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So this is the syntax here for the loop and this is where the conditional statement goes.

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So basically the first first step in the loop is the inmate this inmate here.

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So this step this step here is executed first and only once.

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So this step allows you to declare and initialize any loop control variables you are not required to

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put a statement here.

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You don't need to put any statement in this part.

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OK.

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As long as the semicolon appears OK.

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This is the semicolon is longer the semicolon appears that you don't need to pull any.

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All right.

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So the next is the condition which is this condition here.

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That's the condition.

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So if the condition set is true it will execute this code block all of our conditional state code you've

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written here that code will execute if the condition is false.

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The code will execute here.

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All right.

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So if the condition set once the.

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The code has been evaluated if the conditions set is true the body of the loop which is this code block

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here the body of the loop is executed if it is false the body of the loop does not execute and the flow

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control jumps to the next statement after the loop.

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OK.

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So it would jump to the next statement after the Look if you've got several statements set up after

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the body for the loop executes the flow control jumps back up to the increments statement which is the

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statement yet this is increment it jumps back up to the increment statement this statement allows you

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to update any loop control variables.

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So this statement can be left blank as long as a semicolon appears after the condition this condition.

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All right.

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So the condition is now evaluated again and if it is true the loop will execute and the process repeats

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itself.

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Body of the loop then increment.

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That is the body of the loop.

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Execute.

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Then the increment.

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All right.

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And this process keeps on going again.

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Once the condition is tested if it's true the loop continues until the condition becomes false and then

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the loop terminates.

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All right.

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That's basically how a loop works.

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So let's try and implement that quickly if we can I have created a basic example here of the for loop

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so what I've done have created a console app.

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So the way you create a console log basically you go to file new projects make your C sharp is selected

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and then select console application and then give your console a name and then you click Okay.

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Once you click Okay this code here will be generated for you.

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This bit will be generated.

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The only code I have written is this code here.

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One highlighter so the other the other parts of the code will be auto generated.

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So between this code here this opening one here and this one here is where you write your code.

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So this is where I have written my code

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between this two curly braces.

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This one this one.

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Let me explain the code to you here.

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So with a for loop there are three parts of the code.

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The first part of the code is the initialization where you initialize it.

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So that's it here.

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I've created a variable called X. given its value of 17 so this is the first part.

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The initialization second part is a condition I've set I've set a condition here saying as long this

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I want the code to lose value.

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This code to execute as long as X is less than twenty seven.

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So that's the condition.

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And then here is the increment.

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So I want X to increase by 1 each time until it gets to a value where it is less than twenty seven.

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So this is the code here that will execute.

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So it will display on the screen it will show this text the value of x.

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It says This here is the initialize.

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So the first value will be zero before the counting starts.

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So once this code is executed this value will not change until it gets to 26.

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Remember the condition here is that X has to be less than twenty seven.

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So we will expect the value to be displayed each number to be displayed on the screen from 17 to 26.

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OK.

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And this console the red line is basically code basically to enable the code that you execute to stay

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on the screen.

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So let's check that out.

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So we'll click on Start and as you can see here the code is executing.

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So the condition here is that E2 it would do.

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Each would keep displaying the numbers of the value of X on till it gets to 26.

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So as long as this is less than twenty seven so twenty six would be the highest.

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So that means we could keep executing seventeen sixteen and so on until it gets to twenty six.

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So that's basically how you implement a for loop.

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All right.

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I hope it has made sense if it hasn't.

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Please feel free to contact me or be more than happy to explain more.

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Take care.

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Bye for now.