JAVA两数取余

package work01;

import java.util.Scanner;

public class Example13 {
public static void main(String[] args) {
int x,y,k,R1,R2,counter=0;
Scanner sc = new Scanner(System.in);
System.out.print("输入数值X:");
x= sc.nextInt();
System.out.print("输入数值y:");
y= sc.nextInt();
R1=x;
R2=y;
if (x<y) {
k=x;
x=y;
y=k;//x对y取余，y赋值给x 余数赋值给y,直到y=0
}
while(x%y!=0) {
counter++;
k=x%y;
x=y;
y=k;
}
System.out.println("程序执行了"+counter+"次");
System.out.println(R1+"与"+R2+"的最大公约是"+y);
sc.close();
}
}