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Java

Posted by Nico Goldreyer
Nico Goldreyer
414 Points

I'm confused about while loops.

Hello, I am experiencing some confusion about while loops. I recognize that they have a do-->if-->while structure and I can write one, but I don't understand what's happening. Can anyone illuminate me? Please explain in simple terms. Thanks!

1 Answer

Bramyn Payne
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.a{fill-rule:evenodd;}techdegree
Bramyn Payne
Full Stack JavaScript Techdegree Student 19,560 Points
Bramyn Payne
.a{fill-rule:evenodd;}techdegree
Bramyn Payne
Full Stack JavaScript Techdegree Student 19,560 Points

Hello,

There are While Loops and Do-While Loops. In a While Loop, you specify the condition to be met, and if the condition is met (the statement evaluates to "true") the body of the loop executes. Then, the condition is checked again. If "true", the body of the code will execute; if "false", it will exit the While Loop.

A Do-While Loop is similar, but it first executes the body of the code. After execution, it checks the condition. If "true", the code will execute again. If "false", it will exit.

They are very similar, but the main difference is that a Do-While Loop will always run at least once. A While Loop does not have to run at all if the condition is initially "false".