collection案例

需求：某影院系统需要在后台存储上述三部电影，然后依次展示出来

分析：

1. 定义一个电影类，定义一个集合存储对象。

2. 创建3个电影对象，封装相关数据，把3个对象存入到集合中去。

3. 遍历集合中的3个对象，输出相关信息。

Test类

package com.itheima.d4_collection_object;

import java.util.ArrayList;
import java.util.Collection;

public class TestDemo {
    public static void main(String[] args) {
        //1、定义一个电影类
        //2、定义一个集合对象存储3部电影
        Collection<Movie> movies = new ArrayList<>();
        movies.add(new Movie("《你好王文军》",9.5,"王文军"));
        movies.add(new Movie("《王文军探案》",6.5,"王军"));
        movies.add(new Movie("《刺杀王文军》",9.9,"王文"));
        System.out.println(movies);

        for (Movie movie : movies){
            System.out.println("片名："+movie.getName());
            System.out.println("得分："+movie.getScore());
            System.out.println("主演："+movie.getActor());
            System.out.println("-----------------------------");
        }
    }
}

Movie类

package com.itheima.d4_collection_object;

public class Movie {
    private String name;
    private double score;
    private String actor;

    public Movie() {
    }

    public Movie(String name, double score, String actor) {
        this.name = name;
        this.score = score;
        this.actor = actor;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public double getScore() {
        return score;
    }

    public void setScore(double score) {
        this.score = score;
    }

    public String getActor() {
        return actor;
    }

    public void setActor(String actor) {
        this.actor = actor;
    }

    @Override
    public String toString() {
        return "Movie{" +
                "name='" + name + '\'' +
                ", score=" + score +
                ", actor='" + actor + '\'' +
                '}';
    }
}

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