写出if语句的句法结构，写一个关于if的练习  

package ch02.d2;
import java.util.Scanner;
public class Test2_if {
    public static void main(String[] args) {
        Scanner scan=new Scanner(System.in);
        System.out.println("请输入两个数字：");
       int  x=scan.nextInt();
       int y=scan.nextInt();
       if(x>y){
           System.out.println(x);
       }else{
           System.out.println(y);
       }
    }
}