Java do while Loop with Examples

In do while loop, at the first time body of loop is executed before the condition test is performed.

General Form of Java do while Loop

do{  
//Body of Loop
}while(condition); 

On reaching do statement, body of loop executes first and after executing body of loop, test condition will evaluate which appears at the end of do statement. Body of loop executed repeatedly until the test condition is true.

Test condition always appears at the bottom of loop, therefore body of loop always executes at least once.

Flow Diagram of Java do while Loop

Java do while Loop

Example of Java do while Loop

class JavaDoWhileLoop
{
 public static void main(String[] args) {
  char c = 'A';

                do
  {
   System.out.println(c);
   c++;
  }
  while(c<='E');
 }
}

Output:

A
B
C
D
E