while Loop

while loop #

The while loop is similar to the if statement and essentially works as a repeated if statement. Just like if, while also takes a logical expression and evaluates the block when the logical expression is true. The difference is that the while statement evaluates the logical expression and executes the statements in the block repeatedly, as long as the logical expression is true, not just once. Repeating a block of code this way is called looping.

Here is the syntax of the while statement:

while (a_logical_expression) {
// ... expression(s) to execute while true
}

For example, the code that displays ‘Take cookie’ and ‘Eat cookie’ as long as there is cookie looks like this: