DO.…while loop in Java

DO.…while loop in Java

·       In do while loop firstly initialization is done

·       Then body of loop is executed

·       At the last while loop check the condition

Format for do while loop

Initialization

do

{

Body of the loop

}

while(condition check)

Example: Write the program to print the number table

class Table

{

 public static void main(String[] args) {

    

 {

int num=2;

int table=0;

int j=1; //initialize the value of j

do

{

table=num*j;                        //body of loop

System.out.println(+table);

j++;

}

while(j<11);  //condition check

}

}  

}

Here in above program we print the table of 2

In above program we initialize the j=1

Then body of loop is executed

table=num*j;

num=2 and j=1

num*j=2

hence teble=2 we get our first out put

j++

value of j is incremented by 1

now j=2

while(j<11);

means condition is true

hence again while loop is executed till condition in while loop get

false

output

2

4

6

8

10

12

14

16

18

20