java 对象的克隆（浅克隆和深克隆）

package com.clone;import java.io.Serializable;public class CloneDemo1 implements Cloneable,Serializable{  //该克隆类封装的信息  public int id;  public String name;  public Address address;    public CloneDemo1(){}    public CloneDemo1(int id, String name, Address address){    this.id=id;    this.name=name;    this.address = address;  }    @Override  public Object clone() throws CloneNotSupportedException{    return super.clone();  }    @Override  public String toString(){    return "id="+id+", name="+name+", address:"+address.getAddress();  }    public static void main(String[] args) throws CloneNotSupportedException{    CloneDemo1 c1 = new CloneDemo1(1,"c1",new Address("北京"));    //c2 复制了c1的地址，并没有复制整个c1对象    CloneDemo1 c2 = c1;    //c3 对象的浅克隆，复制了整个对象    CloneDemo1 c3 = (CloneDemo1)c1.clone();    //当对象c1改变其name或者id的时候，c2也会自动改变。    //因为c2只是复制了c1的地址，并非复制了c1的整个对象。    //相应的c3则不会随着c1改变而改变，意味着c3将c1整个对象克隆一份出来。    //当是，对象的浅克隆不会克隆被克隆对象当中的引用对象。    //因此c1改变其中的Address的引用对象时，c2，c3也会跟着改变。    c1.setName("cc");    c1.address.setAddress("上海");    System.out.println(c1+"\n"+c2+"\n"+c3);  }  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;  }}class Address implements Serializable{  public String address;    public Address(){}    public Address(String address){    this.address = address;  }  //address的set和get方法  public String getAddress() {    return address;  }  public void setAddress(String address) {    this.address = address;  }}