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");

        }

    }

}