集合小练习-白红宇

集合小练习

阅读量：300 次

发布时间：2019-03-01

本文共 2643 字，大约阅读时间需要 8 分钟。

集合小练习
  
package jihehuizong;
  
import java.util.ArrayList;
  
import java.util.HashMap;
  
import java.util.HashSet;
  
import java.util.Scanner;
  
import java.util.Set;
  
import java.util.TreeMap;
  
public class MovieManager {
  
    public static void main(String[] args) {
  
        ArrayList movieList = new ArrayList();
  
        Set movietype = new HashSet();
  
        for (;;) {
  
            System.out.println("************************************");
  
            System.out.println("\t\t1、添加电影");
  
            System.out.println("\t\t2、查看电影列表");
  
            System.out.println("\t\t3、分类管理");
  
            System.out.println("\t\t4、显示人气最高的电影");
  
            System.out.println("************************************");
  
            System.out.print("请输入：");
  
            Scanner input = new Scanner(System.in);
  
            int num = input.nextInt();
  
            switch (num) {
  
                case 1:
  
                    System.out.println("添加电影开始");
  
                    System.out.print("请输入添加的电影名称");
  
                    String tmingcheng = input.next();
  
                    System.out.print("请输入添加的电影类型");
  
                    String tleixing = input.next();
  
                    System.out.print("请输入添加的电影人气");
  
                    Integer trenqi = input.nextInt();
  
                    Movie dianYin = new Movie("tmingcheng","tleixing",trenqi);
  
                    movieList.add(dianYin);
  
                    movietype.add(tleixing);
  
                    break;
  
                case 2:
  
                    System.out.println("查看电影列表：");
  
                    movieList.forEach(temp -> {
  
                        System.out.println(temp + "\n");
  
                    });
  
                    break;
  
                case 3:
  
                    System.out.println("请选择分类");
  
                    int q = 1;
  
                    for (String str : movietype) {
  
                        System.out.println(q + "、" + str);
  
                        q++;
  
                    }
  
                    break;
  
                case 4:
  
                    Movie leitai = movieList.get(0);
  
                    for (int n = 0; n < movieList.size(); n++) {
  
                        Movie m = movieList.get(n);
  
                        if (leitai.getDonny() < m.getDonny()) {
  
                            leitai = m;
  
                        }
  
                    }
  
                    System.out.println(leitai);
  
                    break;
  
                default:
  
                    System.out.println("亲，你眼瞎么？");
  
                    break;
  
            }
  
        }
  
    }
  
}