标签：zha throw test out jin === ted 很多 ati
有时候创建对象是需要耗费很多资源，但是每个对象之间又有大量的重复。我们可以选择在创建好一个对象后，以之作为模板克隆出其他对象，稍作修改，即可用于其他地方。
需要实现Cloneable接口，重写clone()方法。其实就是调用的Object类的clone()方法。
克隆对象只是复制了原对象的数据，每个对象还是独立的，他们的内存地址不同。
/** * Created by wangbin10 on 2018/5/18. */ public class Prototype2 implements Cloneable,Serializable { private static final long serialVersionUID = 2L; private String name; private Integer payAmount; private String msg; public Prototype2() { } public Prototype2(String name, Integer payAmount, String msg) { this.name = name; this.payAmount = payAmount; this.msg = msg; } public String getName() { return name; } public void setName(String name) { this.name = name; } public Integer getPayAmount() { return payAmount; } public void setPayAmount(Integer payAmount) { this.payAmount = payAmount; } public String getMsg() { return msg; } public void setMsg(String msg) { this.msg = msg; } public Prototype2 clone() throws CloneNotSupportedException { Prototype2 clone = (Prototype2) super.clone(); return clone; } }
/** * Created by wangbin10 on 2018/5/18. */ public class PTest { public static void main(String[] args) throws CloneNotSupportedException { Prototype2 p1=new Prototype2("zhangsan",23,"hello!welcome to beijing!"); System.out.println(p1.getName()+p1.getPayAmount()+p1.getMsg()); Prototype2 p2 = p1.clone(); p2.setName("lisi"); p2.setPayAmount(24); System.out.println(p2.getName()+p2.getPayAmount()+p2.getMsg()); System.out.println("============================"); System.out.println(p1.getName()+p1.getPayAmount()+p1.getMsg()); } }
标签：zha throw test out jin === ted 很多 ati
原文地址：https://www.cnblogs.com/wangbin2188/p/9056130.html
