While loop in Java

While loop in Java

In while loop

•       Initialization is done

•       Then condition is check

•         If condition is true then body of loop is executed

Format for while loop

While (condition)

{

Body of loop

}

In while loop condition is check first

If it is true then body of loop is executed

After this execution condition is again check

Body of loop is executed till the condition in

While loop is false

Example: Write the program to print the number of table

   In above program

class Table

{

public static void main(String[] args)

{

int num=4,table=0,j;

j=1; // initialize the value of j

while(j<11) // condition check

{

table=num*j;                 // body of loop

System.out.println(+table);

j++;

}

}

}  

We initialize the value of variable j

j=1

then condition in while loop is check

while(j<11)

if condition is true then body of loop is executed

if condition is false

then execution of program goes out side the loop

Output