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This video present the solution to workbook 3.7.

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Task number one is to pick up the user's decision.

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So here we can say string decision is equal to skin dot next line and if the decision equals yes.

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So if decision dot equals the string.

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Yes.

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Then we're going to dump all of this code inside of this if statement.

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If they are here to get a mortgage, then we will execute all of the code that is involved in granting

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them a mortgage.

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Otherwise, else we will print OC.

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Have a nice day.

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Okay.

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So that was task number two for you.

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Let's go ahead and visualize the runtime.

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I'm only going to put breakpoints here.

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We only need one breakpoint to remember to visualize F and L statements.

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And that should be good.

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We'll debug the runtime.

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So here it's asking me if I want to get a mortgage, if I execute this line of code scanned.

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Next line is going to wait for me to enter any string value.

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And that's exactly what it does.

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I'm going to enter a decision of either yes or no.

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In this case, Yes, if I want this to execute.

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All right.

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The decision variable equals.

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Yes.

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So this is going to evaluate to true.

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Remember, do not press continue, continue continues to the next breakpoint, since there are no other

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breakpoints, it's just going to resume execution of our code until the application completes normally.

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So we're going to step over this conditional.

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And we can visualize what happens inside of it line by line, by stepping over each line.

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Right now, it just prints a bunch of messages.

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So we need to write all of the relevant code in the event that the user wants to get a mortgage.

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Now let us restart the runtime.

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By pressing continue scan.

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The next line waits for me to enter any value.

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I'm going to enter.

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No, no does not equal yes.

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So this will evaluate the false.

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If I press step over, it goes to the LL statement and it prints.

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Okay.

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Have a nice day.

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Now I can press continue to resume program execution.

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Prince.

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Okay.

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Have a nice day.

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All right, Let us finish writing the code here.

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We will say double savings is equal to skin.

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Next double to pick up how much money they have in their savings account.

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And double debt is equal to skin.

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Next double once again.

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How many years have you worked for?

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That seems like a whole number to me.

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End years is equal to skin.

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Next int.

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What is your name?

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String name is equal to skin.

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Next line.

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But remember when next line comes after a next end, next double or a next, we need to put in a throwaway

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next line.

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Right before the quote unquote, real next line, the one that actually matters.

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So this one is going to get skipped.

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This one is going to get wasted while this one actually waits for the user to enter in a string, which

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will then get stored in a name variable.

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All right.

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Now, we want to approve the mortgage if they meet the requirements that were specified in the article.

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So you'll remember the requirements for them to be approved for a mortgage are if their savings are

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at least 10,000.

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So if their savings are greater than or equal to $10,000.

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And they need to also have less than $5,000 in debt.

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So the debt also has to be less than 5000.

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And they need more than two years of work experience.

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So end.

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Years has to be more than two.

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If the user meets all of these requirements, then we can approve them for a mortgage.

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We can say congratulations, whoever, whatever their name ends up being.

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Congratulations name you have been approved else.

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Sorry.

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You are not eligible for a mortgage.

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And that song.

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Let us visualize the runtime.

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By pressing continue, it's going to execute this line of code.

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And next line here waits for me to enter in a string.

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I'm going to enter.

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Yes.

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The decision yes equals the string.

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Yes.

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So this will evaluate to true executing the if statement.

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Remember not to press continue because continue continues to the next breakpoint, but there are no

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other breakpoints.

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So it's just going to resume execution of our program until it completes naturally.

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So we will step over this conditional and step over every single line inside of it.

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Great.

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In one line, how much money do you have in your savings?

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You will step over this line, Keep stepping over.

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Now I need to input my savings and debt in one line.

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So if I say 20,000.

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Followed by 2000.

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This scandal.

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Next double is going to scan for the first double value that we input.

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And this scandal next double will skin for the next double separated by white space.

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Let's test this out.

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And beautiful.

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Just as I predicted, this one picked up this value, and after stepping over this one, it scanned

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for the next double.

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That was the limited by a white space.

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So now this variable stores the value 20,000.

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That's variable stores of the value 2000.

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How many years have you worked for?

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We're going to put three years so that we're approved for the mortgage.

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What is your name?

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Because this scan next line comes after a next int, it's going to get skipped.

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So as I stepped over it, it did not actually prompt me to enter anything.

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But if I step over this skin next line, it's actually going to wait for me so that it can scan for

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a string value.

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So I will enter in a name of Tim.

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Scanned up next line picks up our string value, and that string value gets stored in a string variable

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name.

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And now in this conditional, it's checking if my savings is greater than or equal to 10,000.

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If debt is smaller than 5000, and if the number of years worked is over.

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Two.

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It's really beautiful that I can see my values side by side.

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20,000 is greater than or equal to 10,000.

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My debt is smaller than 5000 and I have worked for more than two years.

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So this expression is going to evaluate to true and running the code inside.

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Congratulations, Tim.

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You have been approved.

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All right, Now, what if I do not meet the requirements?

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Let's try this out again.

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The press continue to continue to the next breakpoint.

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Are you here to get a mortgage?

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We'll say yes.

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Yes equals yes.

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This this evaluates to true will step over.

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We'll put in a savings of, let's say, 5000, which is less than 10,000 and a debt of 2000.

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So scanned.

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Our next double picks up the first double that we input.

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And after I step over this line it will scan for the next double.

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That's the limited by white space, picking it up, storing it in a depth variable.

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How many years have you worked for?

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Will print this after stepping over the next end, it's going to prompt me to enter an integer.

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I'm going to say three years.

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What is your name?

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This next line is going to get skipped.

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It will get wasted because it comes after a next int.

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This next line will actually prompt me to enter in a string.

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We will say once again, Tim.

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Submitting it to him gets picked up and then stored in a name string.

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And now, conveniently, I can visualize my variables right beside the conditions.

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So the debt is smaller than 5000.

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This one is good.

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The years is bigger than two.

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This one is good.

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However, the savings is not greater than or equal to 10,000 because we're using the end logical operator.

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All of these need to be true for the whole expression to be true, but because one of them is false,

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this entire expression is going to be false.

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The if statement will not run.

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And what's actually going to run is the LL statements.

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All right.

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Sorry.

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You are not eligible for a mortgage.

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You did not meet all the requirements and now I can press continue so that execution can resume and

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the program will terminate naturally.

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All right.

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That is all.

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I really hope you enjoyed these breakpoint sessions.

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The one thing I really wanted to drive home was how easy it is to visualize.

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And if else, all you have to do is put one breakpoint in the beginning and then keep pressing.

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Step over.

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But if you just want to navigate from one breakpoint to another, then you can press the button.

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Continue.

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All right.

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That is all.