使用构造函数 创建3个商品 放到数组中

类

package com.fqs.demo1;

public class Shop {
    private String id;
    private String name;
    private double price;
    private int kucun;
    //空参
    public  Shop() {
        
    }
    //全部参数
    public   Shop(String id,String name,Double price,int Kucun) {
        this.id=id;
        this.name=name;
        this.price=price;
        this.kucun=kucun;
    }
    //set get id
    public void setId(String id) {
        this.id=id;
    }
    public String getId() {
        return id;
    }
    //set  get name
    public void setName(String name) {
        this.name=name;
    }
    public String name() {
        return name;
    }
    //set get price
    public void setPrice(Double price) {
        this.price=price;
    }
    public double getPrice() {
        return price;
    }
    //set get kucun
    public void setKucun(int kucun) {
        this.kucun=kucun;
    }
    public int getKucun() {
        return kucun;
    }

}

 

对象

package com.fqs.demo1;

public class ShopTest {
    public static void main(String[]args) {
        Shop [] arr= new Shop[3];//类类型的数组,允许接收不同类型的数组
        Shop s1=new Shop("shop001","app",3.5,1);
        Shop s2=new Shop("shop002","orange",3.5,1);
        Shop s3=new Shop("shop003","milk",3.5,1);
        
        
        
          arr[0]=s1; arr[1]=s2; arr[2]=s3; //遍历 
          for(int i=0;i<arr.length;i++) {
          System.out.println(arr[i].getId()+","
          +arr[i].name()+","+arr[i].getPrice()+","+arr[i].getKucun());
          
          }
         
        /* System.out.println(s1.getId()); */
        
    }

}