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The do/while loop is guaranteed to execute the loop body at least once.

We have seen how to use for loops and while loops, but how do we choose which one to use? Also introducing the break and ...

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An exception is a run time error. Find out the basics of catching them before they crash your program!

This video takes you through the process of creating a V using asterisks on the console and nested loops. It also reviews ...

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In C, you use a for loop to iterate through an array. In fact, for loops and arrays were pretty much made for each other. Here's the ...

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You can do multiple initializations and iteration actions within a for loop. Here's how it works.

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You can have multiple methods with the same name as long as the number and/or types of the parameters is different.

Some decision structures require you to put if statements inside if statements. That's called a “nested if” statement.

Python lets you put if statements inside of if statements. We'll examine some examples of that in this video.

In this course, our style guidelines tell you to *always* use braces with if statements. This video explains the problems you could ...

How to let users supply numeric input to your programs.

You use an if statement to make decisions about whether to take an action or not. You use an if/else statement to decide whether ...

When should you use braces around the body of an if/else? (Spoiler alert: always.)

Passing variables by value and reference to procedures in visual logic.

AP Computer Science A.

A walk-through of a simple nested for loop in JavaScript, using JSTutor. Visualize it yourself at https://goo.gl/vmb3xZ.