Java While Loop

The while loop loops through a block of code as long as a specified condition is true:

Syntax

while (condition) {
  // code block to be executed
}

In the example below, the code in the loop will run, over and over again, as long as a variable (i) is less than 5:

Example

int i = 0;
while (i < 5) {
  System.out.println(i);
  i++;
}

Note: Do not forget to increase the variable used in the condition, otherwise the loop will never end!

Practice Excercise Practice now