Find gcd of two numbers

import java.util.Scanner;
class Gcd
{
void toFindGcd(int number1,int number2)
{
while(number1!=number2)
{
if(number1>number2)
number1=number1-number2;
else
number2=number2-number1;
}
System.out.printf("gcd of these two numbers is: %d",number1);
}
}
class GcdTest
{
public static void main(String args[])
{
Gcd g1=new Gcd();
Scanner sc=new Scanner(System.in);
int n1=sc.nextInt();
int n2=sc.nextInt();
g1.toFindGcd(n1,n2);
}
}