Factorial using while loop

Factorial using while loop

  February 06, 2018    Unknown

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import java. util. Scanner;
class Fact {
public static void main (String [ ] arg) {
Scanner obj = new Scanner (System.in ) ;
int f=1;
System.out.println (" Enter the no :- ") ;
int a = obj. nextInt() ;
while (a>=1) {
       f=f*a ;
        a-- ;

}
System.out.println (" Factorial " + f) ;
}
}