LCM and HCF of two number in java

import java.util.*;

class GFG {
public static void main (String[] args) {

Scanner scan = new Scanner(System.in);
    int a = scan.nextInt();
    int b = scan.nextInt();
    int c = a,d=b;
    while(a!=b){
 if(a>b)
 a=a-b;
 else
 b=b-a;
 }
 System.out.println("LCM = "+c*d/a);
 System.out.println("HCF = "+a);
}
}