While

One way to make a loop in code is to use while.

int x = 5; while (x != 0) { System.out.println(x); x--; }

You write while followed by a condition inside of ( and ) and some code inside of { and }.

while (CONDITION) { <CODE HERE> }

If the condition evaluates to true then the code inside of { and } will run. After that code runs, the condition will be evaluated again. If it still evaluates to true then the code { and } will run again.

This will continue until the code in the condition evaluates to false.

int glassesOfMilk = 99; while (glassesOfMilk > 0) { System.out.println( glassesOfMilk + " glasses of milk left" ); glassesOfMilk--; }

If a loop is made with while we call it a "while loop."1

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"We called him Tortoise because he taught us." - Lewis Carroll