SerialCloneable

序列化机制提供了一种克隆对象的简便途径，但是很慢！！！！

package xml;

import java.io.Serializable;
import java.util.Date;
import java.util.GregorianCalendar;
import java.io.*;

public class SerialCloneTest {
	public static void main(String[] args){
		Employee harry=new Employee("harry",2900,1989,1,1);
		Employee newH=(Employee)harry.clone();

		System.out.println(newH);
	}
}
class SerialCloneable implements Serializable,Cloneable{
	public Object clone(){
		try{
			ByteArrayOutputStream bout=new ByteArrayOutputStream();
			ObjectOutputStream out=new ObjectOutputStream(bout);
			out.writeObject(this);
			out.close();

			ByteArrayInputStream bin=new ByteArrayInputStream(bout.toByteArray());
			ObjectInputStream in=new ObjectInputStream(bin);
			Object ret=in.readObject();
			in.close();

			return ret;
		}catch(Exception e){
			return null;
		}
	}
}
class Employee extends SerialCloneable{
	private String name;
	private double salary;
	private Date hireDay;

	public Employee(){}
	public Employee(String n,double s,int y,int m,int d){
		this.name=n;
		this.salary=s;
		GregorianCalendar calendar=new GregorianCalendar(y,m-1,d);
		this.hireDay=calendar.getTime();
	}

	public String getName(){
		return this.name;
	}
	public double getSalary(){
		return this.salary;
	}
	public Date getHireDay(){
		return this.hireDay;
	}

	public String toString(){
		return getClass().getName()+"[name="+name+",salary="+this.salary+",hireday="+this.hireDay+"]";
	}
}