一案例要求：

二具体代码(需要在同一个包下创建三个类)

Ⅰ：实现类

java">package 重修;

import java.util.Random;
import java.util.Scanner;

public class first {
    public static void main(String[] args) {
    javabean[]movies=new javabean[4];
    movies[0]= new javabean("水门桥", 23.5,123,1);
    movies[1]= new javabean("西游记", 23.5,123,2);
    movies[2]= new javabean("星游记", 23.5,123,3);
    movies[3]= new javabean("活着", 23.5,123,4);
    javabeanoperate s=new javabeanoperate(movies);
    s.show();
    Scanner sc=new Scanner(System.in);
    int x;
        System.out.print("请输入要查询的编号:");
        x= sc.nextInt();
        System.out.println();
    s.search(x);
    }
}

Ⅱ实体类：

java">package 重修;

public class javabean {
    private String name;
    private double price;
    private double score;
    private int id;

    public javabean() {
    }

    public javabean(String name, double price, double score, int id) {
        this.name = name;
        this.price = price;
        this.score = score;
        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 int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }
}

Ⅲ操作类：

java">package 重修;

public class javabeanoperate {
    private javabean[] javabeans;
    public  javabeanoperate(javabean[] movies) {
        this.javabeans = movies;
    }
    public void show(){
        System.out.println("-------全部电影信息如下-------");
        for (int i = 0; i < javabeans.length; i++) {
            javabean m = javabeans[i];
            System.out.println("姓名" + m.getName() + " 价格 " + m.getPrice() + " 评分 " + m.getScore() + "编号 " + m.getId());
            System.out.println("-----------------------");
        }
    }
    public void search(int id){
        for (int i = 0; i < javabeans.length; i++) {
            javabean m = javabeans[i];
            if(m.getId()==id){
                System.out.println("找到了");
                System.out.println("姓名" + m.getName() + " 价格 " + m.getPrice() + " 评分 " + m.getScore() + "编号 " + m.getId());
                return ;
            }
        }
        System.out.println("未查到该编号相关信息");

    }
}

三运行结果：