java，定义类（手机），调用（手机的各种方法）演示

这是包的名字
这里我用了while语句和switch-case语句来提高代码的互动性

package Phone;

import java.util.Scanner;

public class phonedemo {

    public static void main(String[] args) {
	//写入手机种类及配置
	CellPhone p1 = new CellPhone("华为","6.58","5000","8+512");
	CellPhone p2 = new CellPhone("Iphone","6.5","1000","4+256");
	
	//利用while循环展示手机
	while (true){
		System.out.println("-----------欢迎进入您的手机小仓库-----------");
		System.out.println("请选择你要查看的手机");
		System.out.println("1.华为p40pro+");
		System.out.println("2.Iphone11pro");
		System.out.println("3.走出仓库");
		
		Scanner sc = new Scanner(System.in);
		String line = sc.nextLine();
		//利用switch语句调用展示方法和进行功能操作的switch语句
		switch (line) {
		case "1":{
			//展示方法调用
			p1.Show();
			System.out.println("请选择你要使用功能");
			System.out.println("1.发短信");
			System.out.println("2.打电话");
			//功能的操作
			String function = sc.nextLine();
			switch (function){
			case "1":{
			    //调用sendMessage方法
			    p1.sendMessage();
			    break;
			}
			case "2":{
			  //调用callPhone方法
			    p1.callPhone();
			    break;
			}
			default:
				System.out.println("对不起您输入的信息有误，已退出手机使用");
				break;
			}
			break;
		}
		case "2":{
			//展示方法调用
		    	p2.Show();
		    	System.out.println("请选择你要使用功能");
			System.out.println("1.发短信");
			System.out.println("2.打电话");
			String function = sc.nextLine();
			switch (function){
			case "1":{
			  //调用sendMessage方法
			    p2.sendMessage();
			    break;
			}
			case "2":{
			  //调用sendMessage方法
			    p2.callPhone();
			    break;
			}
			default:
				System.out.println("您输入的信息有误，请重新输入");
				break;
			}
			break;
		}
		case "3":{
			//直接结束系统运行
			System.out.println("已退出仓库");
			System.exit(0);
		}
		default:
			System.out.println("您输入的信息有误，请重新输入");
			break;
		}
	}

}



}

这是手机的包

package Phone;

import java.util.Scanner;

public class CellPhone {
    //定义手机属性
    private String logo;
    private String screen;
    private String camera;
    private String memory;

    //无参方法
    public CellPhone() {
    				
    }
    //set get方法
    public CellPhone(String logo, String screen,String camera,String memory) {
	    this.logo = logo;
	    this.screen = screen;
	    this.camera = camera;
	    this.memory = memory;
	}
   
    public void setlogo(String logo) {
        this.logo = logo;			
    }
    public String getlogo(){			
        return logo;			
    }
    public void setscreen(String screen) {
        this.screen = screen;			
    }
    public String getscreen(){				
        return screen;			
    }
    public void setcamera(String camera) {
        this.camera = camera;			
    }
    public String getcamera(){				
        return screen;			
    } 
    public void setmemory(String memory) {
        this.memory = memory;			
    }
    public String getmemory(){				
        return memory;			
    }
      //show展示手机信息的方法
    public void Show(){
        System.out.println("这是一部"+memory+"G内存，"+camera+"万像素，"+screen+"英寸的"+logo+"牌手机"); 
    }
      //构建sendMessage方法，输入信息，输入发送失败的提示
    public static void sendMessage() {
    	Scanner sc = new Scanner(System.in);
    	
    	System.out.println("请输入要发送的信息");
    	String message = sc.nextLine();
    	System.out.println("发送成功！");
    }
    //构建callPhone方法，输入电话号，输入无法拨打的提示
    public static void callPhone(){
        Scanner sc = new Scanner(System.in);
    	
    	System.out.println("请输入要拨打的电话");
    	String call = sc.nextLine();
    	System.out.println("对不起您的手机已欠费，无法拨打");
    }
      
}

运行结果展示