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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;
              }
          }
      }
  }

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