While Loop (Part 4)

While Loop

The while loop loops through a block of code as long as a specified condition is true , as soon as block of code fails the condition of while loop , it exits out of loop.

While loop is also an entry controlled group.

➤We use For Loop when we know the number of times the loop needs to be executed , while while loop is used when we dont know the number of times the loop needs to be executed. 

The working of both loops is similar.

Syntax:-

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

Flowchart:-

Eg:-

 public class MyClass {    
   public static void main(String args[]) {    
  int age = 12;  
  while (age<=18)  
  {  
       System.out.println("Age is: "+age);  
       age++;  
    }  
   }   
  } 

Output:-

 Age is: 12  
 Age is: 13  
 Age is: 14  
 Age is: 15  
 Age is: 16  
 Age is: 17  
 Age is: 18 

< Previous Next >