JAVA实例，求用户输入的整数是否是偶数

import java.util.Scanner;
public class Test{
    public static void main(String[] args){
        Scanner in    =    new Scanner(System.in);
        System.out.println("请输入一个整数");
        int num    =    in.nextInt();
        int num_p    =    num%2;    //取整除后的余数
        switch(num_p){
            case 0:
            System.out.println("偶数");
            break;    //跳出
            
            default:    //默认
            System.out.println("奇数");
        }
    }
}

import java.util.Scanner;
public class Test{
    public static void main(String[] args){
        Scanner in    =    new Scanner(System.in);
        System.out.println("请输入一个整数");
        int num    =    in.nextInt();
        int num_p    =    num%2;    //取整除后的余数
        if(num_p==0){
            System.out.println("偶数");
        }
        else{
            System.out.println("奇数");
        }
    }
}