package com.neuedu.chapter6_1105.inter_prac;
public class Happy implements News{
public void addNews() {
System.out.println("发了一条娱乐新闻");
}
}
package com.neuedu.chapter6_1105.inter_prac;
public class Sports extends Object implements News{
public void addNews() {
System.out.println("发布了一条体育新闻");
}
}
package com.neuedu.chapter6_1105.inter_prac;
public class ZhengZhi implements News {
public void addNews() {
System.out.println("发了一条政治新闻");
}
}
package com.neuedu.chapter6_1105.inter_prac;
public interface News {
// 发布新闻的方法
void addNews();
}
package com.neuedu.chapter6_1105.inter_prac;
import java.util.Scanner;
public class Test {
public static void main(String[] args) {
while(true) {
Scanner scan = new Scanner(System.in);
System.out.println("请输入要发布的新闻类型");
System.out.println("1-----------娱乐");
System.out.println("2-----------体育");
System.out.println("3-----------政治");
System.out.println("4-----------退出");
int num = scan.nextInt();
News n = null;
switch(num) {
case 1:
n = new Happy();
break;
case 2:
n = new Sports();
break;
case 3:
n = new ZhengZhi();
break;
case 4:
return;
default :
System.out.println("无此选项");
continue;
}
n.addNews();
}
}
}
