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Before we start, did you try solving the workbook yourself?

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If not, please click the link in the resources folder and follow the instructions for this workbook.

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This video will present the solution to workbook 2.5 from VES Code.

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Make sure to launch the exact folder that contains your Java file in this case, Workbook 2.5 and Task

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one tells us to enter in some information.

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So first I will say system dot out dot print line asking the user for their first name.

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What is your first name?

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And once we do that, we're going to say scan next line.

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So once this line runs, it's going to wait for the user to enter in a string value.

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And after scan, the next line picks up the string value that the user submits we need to store.

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The resulting string inside of a variable called.

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In this case, first name.

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We'll do the same thing for the last name.

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What is your last name?

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Once the runtime reaches here, we're going to pick up the string value that they submit and we're going

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to store that in a variable called last name.

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Then we ask them how old they are.

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So we'll say, System.out.println.

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How old are you?

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Scandal.

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Next int is going to wait for the user to submit an integer.

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And once we pick up the integer that they submit, we're going to store it in a variable called H.

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We'll do the same thing for the username and for the username.

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We need to ask them to create one.

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So we'll say system, not that print line.

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Please create a username.

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And then we will repeat this process by saying string username is equal to whatever string value gets

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returned from skin.

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Next line.

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Okay, I'm going to stop at the username for now.

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Let me just run the code by saying Java C compiling the code inside of sign up dot Java and then running

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the compiled code.

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So when the code reaches this line, you'd ask them for their first name scanned.

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Next line waits for us to enter in a string.

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So I'm going to enter in the string, Ryan.

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That string is going to get picked up and stored in a variable called first name.

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And after asking the user how old they are, next int is going to wait for them to enter an integer,

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which they are.

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And what just happened.

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So after scanned out next and grabbed the integer and stored it inside the variable age.

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The next step would have been for the console to print.

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Please create a username, which it did, but then scanned out.

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Next line.

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Should have waited for the user to enter in a username, but it got completely skipped.

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Why did that happen?

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I warned you about the next line trap in that next line gets completely skipped when placed after a

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next int, a next double or a next log and the solution is to place an extra throwaway next line before

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the real next line.

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But you might be wondering why does this happen?

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I do explain why this happens eventually once you reach the delimiter lesson, but for now the simple

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solution is to add a throwaway next line and extra next line.

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Right before the one that matters.

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That way.

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The next line that we don't care about gets skipped.

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But the next one will, as always, wait for the user to enter a string, which were then going to store

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inside of a string variable called username.

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So let's see all of this in action.

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I'm going to input a name.

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Ryan Adams will make them 35.

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And beautiful, while the throwaway next line that we don't care about gets completely skipped, it

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gets wasted.

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The next line that follows wait for the user to enter a string.

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I'm going to enter the string are slim 087.

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That string is going to get picked up and stored in a variable called username.

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All right.

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Now feel free to pause the video and complete task one on your own.

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That's all for task number one.

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Task number two is to print their information.

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So the first thing I'm going to say is system, dot, dot, print line.

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And instead of just your information, what I'll do is I'll say, here is the information you entered

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again, that's up to you.

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Not too important what string you print.

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But what I want to do is create a line of space between Thank you for joining Java Gram and here is

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the information you entered.

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And what I can do is use the escape character backslash, which basically tells Java, Hey, look out

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for the next character.

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It's special.

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And by saying n.

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Java is going to know to insert a new line right over here.

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So let's try it out.

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Java Sea.

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Sign up to Java running the compiled code.

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What is your first name?

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Ryan Adams will do this quickly.

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35 are slim 087.

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Ottawa, Canada.

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Notice the extra line of space that was inserted between.

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Thank you for joining Java Gram and here is the information that you entered.

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Looking back at the final output, a tab of space is inserted before printing each piece of information.

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So what we could do is something like this system dot out, dot print line.

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On a new line we will print first name.

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Um, whatever the variable value ends up being.

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First name.

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And in order to create a tub of space, I can simply press space four times.

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But that's really ugly.

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What I can do is use the escape character once again telling Java, Hey, the character that follows

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is special, and by putting a T, Java knows, okay, I need to insert a tab of space right here.

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I'll give you some time to pause the video so that you can do this for the remaining variables.

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Before we start, you should always close scanner.

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Otherwise you're going to get a memory leak.

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It's always, always good to close scanner when you're done with it.

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Otherwise you're wasting resources.

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This becomes especially more prevalent when you're building a much bigger application.

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For example, if you're ever using scanner in a spring boot web application, you better make sure to

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close it.

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Otherwise you're going to get a very, very big leak.

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All right, let's compile our code and run it.

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First name, Ryan.

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Last name, Adams.

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How old are you?

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Will say he's 35.

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Are slim.

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Zero eight or nine?

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Eight six.

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Ottawa, Canada.

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And this looks great.

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Before we wrap up, If you want, feel free to visualize the first part of our code.

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Next line picks up the name.

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And the string it picks up gets stored in a variable.

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Next line picks up the last name and the string it picks up gets stored in a variable next and picks

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up the age, which we then store in a variable.

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And when next line comes after your next int, next double, next longer and next it gets wasted, it

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gets skipped.

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But the next line that follows will work business as usual.

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You will understand why this trap happens once you reach the lesson on.

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Mm.