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While loop in Java.
While loop in Java
- It's body will execute until the given condition is true.
class Easy
{
public static void main(String[] args)
{
int x=1;
while(x<10)
{
System.out.println(x);
x++;
}
}
}
/*
### Output ###
1
2
3
4
5
6
7
8
9
*/
In the above example the body of while will execute again and again as long as variable x is less than 10.
//factorial of 5=1x2x3x4x5
//factorial of 6=1x2x3x4x5x6
//factorial of N=1x2x3x....xN
import java.util.Scanner;
class Easy
{
public static void main(String[] args)
{
Scanner in=new Scanner(System.in);
int no,f=1,i=1;
System.out.println("Enter any number");
no=in.nextInt();
while(i<=no)
{
f=f*i;
i++;
}
System.out.println("The factorial of "+no+" is "+f);
}
}
/*
### Output ###
Enter any number
6
The factorial of 6 is 720
*/