写出if语句的句法结构，写一个关于if的练习  

public class text_if {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        System.out.println("请输入第一个数字");
        int x = scan.nextInt();
        System.out.println("请输入第二个数字");
        int y = scan.nextInt();

        if (x > y) {
            System.out.println(x + "大于" + y);
        } else if (x < y) {
            System.out.println(x + "小于" + y);
        } else {
            System.out.println(x + "等于" + y);

        }
    }
}