集合中存储的是对象么

集合中存储的实际上是对象的引用

import java. util.ArrayList ;

import java. util.List ;

class Apple{

    private String color ;

    private String type ;

    public Apple (String color, String type) {

         super();

         this.color = color;

         this.type = type;

    }

}

public class Main {

    public static void main (String[] args) {

        Apple apple1 = new Apple("red" ,"type1");

        Apple apple2 = new Apple("green" ,"type2");

        List <Apple> apples = new ArrayList<Apple>(4 );

        apples .add( apple1);

        apples .add( apple2);

    }

}

来自为知笔记(Wiz)