JavaSE——面向对象基础（4/4）-成员变量和局部变量的区别、面向对象综合案例（电影信息系统）

public class Movie {
    private int id;
    private String name;
    private double price;
    private double score;
    private String director;
    private String actor;
    private String info;
 
    public Movie(int id, String name, double price, double score, String director, String actor, String info) {
        this.id = id;
        this.name = name;
        this.price = price;
        this.score = score;
        this.director = director;
        this.actor = actor;
        this.info = info;
    }
 
    public int getId() {
        return id;
    }
 
    public void setId(int id) {
        this.id = id;
    }
 
    public String getName() {
        return name;
    }
 
    public void setName(String name) {
        this.name = name;
    }
 
    public double getPrice() {
        return price;
    }
 
    public void setPrice(double price) {
        this.price = price;
    }
 
    public double getScore() {
        return score;
    }
 
    public void setScore(double score) {
        this.score = score;
    }
 
    public String getDirector() {
        return director;
    }
 
    public void setDirector(String director) {
        this.director = director;
    }
 
    public String getActor() {
        return actor;
    }
 
    public void setActor(String actor) {
        this.actor = actor;
    }
 
    public String getInfo() {
        return info;
    }
 
    public void setInfo(String info) {
        this.info = info;
    }
}

public class MovieOperator {
    public MovieOperator(){
 
    }
 
    private Movie[] movies;  //建立一个对象数组用来存放多部电影的信息
 
    public MovieOperator(Movie[] movies){
        this.movies = movies;
    }
    //1.展示电影全部信息
    public void printAllMovie(){
        System.out.println("-------系统全部电影信息如下-------");
        for(int i = 0;i < movies.length;i++){
            Movie m = movies[i];  //临时建立一个电影对象用来取到对象数组里面的数据
            System.out.println("编号：" + m.getId());
            System.out.println("名称：" + m.getName());
            System.out.println("价格：" + m.getPrice());
            System.out.println("----------------------" );
        }
    }
}

//2.根据电影的编号查询电影的详细信息并展示
    public void searchMovieById(int id){
        for(int i = 0; i < movies.length;i++){
            Movie m = movies[i];
            if(m.getId() == id){
                System.out.println("该电影详情如下：");
                System.out.println("编号：" + m.getId());
                System.out.println("名称：" + m.getName());
                System.out.println("价格：" + m.getPrice());
                System.out.println("得分：" + m.getScore());
                System.out.println("导演：" + m.getDirector());
                System.out.println("主演：" + m.getActor());
                System.out.println("其他信息：" + m.getInfo());
                return;  //找到了电影信息，就可以直接返回了
            }
        }
        System.out.println("没有该电影信息");
    }
}

public class MovieTest {
    public static void main(String[] args) {
        Movie[] movies = new Movie[4]; //存放四部电影的信息
        movies[0] = new Movie(1,"水门桥",38.9,9.8,"徐克","吴京","12万人想看");
        movies[1] = new Movie(2,"深海",55.5,7.2,"田晓鹏","苏鑫、王亭文","上映第10天，总票房破5亿元");
        movies[2] = new Movie(3,"出拳吧",39,7.8,"唐晓白","田雨","3.5万人想看");
        movies[3] = new Movie(4,"一点就到家",35,8.7,"许宏宇","刘昊然","10.8万人想看");
    }
}

public class MovieTest {
    public static void main(String[] args) {
        Movie[] movies = new Movie[4]; //存放四部电影的信息
        movies[0] = new Movie(1,"水门桥",38.9,9.8,"徐克","吴京","12万人想看");
        movies[1] = new Movie(2,"深海",55.5,7.2,"田晓鹏","苏鑫、王亭文","上映第10天，总票房破5亿元");
        movies[2] = new Movie(3,"出拳吧",39,7.8,"唐晓白","田雨","3.5万人想看");
        movies[3] = new Movie(4,"一点就到家",35,8.7,"许宏宇","刘昊然","10.8万人想看");
 
        //创建一个电影操作类的对象，接收电影数据，并对其进行业务处理
        MovieOperator operator = new MovieOperator(movies);
 
        Scanner sc = new Scanner(System.in);
        while(true){
            System.out.println("===电影信息系统===");
            System.out.println("1.查询全部电影信息");
            System.out.println("2.根据ID查询某个电影的详细信息显示");
            System.out.println("请您输入操作命令：");
            int command = sc.nextInt();
            switch (command){
                case 1:
                    operator.printAllMovie();
                    break;
                case 2:
                    System.out.println("请您输入查询的电影id：");
                    int id = sc.nextInt();
                    operator.searchMovieById(id);
                    break;
                default:
                    System.out.println("您输入的命令有问题，请重新输入");
            }
        }
    }
}