Io-浅拷贝和深拷贝

package com.io;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public class CopyObject {

	public static void main(String[] args) throws IOException,ClassNotFoundException,CloneNotSupportedException{
	
		Student stu=new Student(1,"admin","admin");
		//light copy
		Student lightCopy=(Student) stu.clone();
		
		//deep copy
		/*将对象写入到内存流中*/
		ByteArrayOutputStream bos=new ByteArrayOutputStream();
		ObjectOutputStream oos=new ObjectOutputStream(bos);
		oos.writeObject(stu);
		/*从内存中将对象通过流的方式读出来*/
		ByteArrayInputStream bis=new ByteArrayInputStream(bos.toByteArray());
		ObjectInputStream ois=new ObjectInputStream(bis);
		Object deepCopy=ois.readObject();
		
		System.out.println("deepCopy:"+deepCopy);
		System.out.println("lightCopy"+lightCopy);
	}
}
class Student implements Serializable,Cloneable
{
	private static final long serialVersionUID = 1L;

	private Integer id;
	private String userName;
	private String password;
	   
	   public Student(Integer id, String userName, String password) {
			super();
			this.id = id;
			this.userName = userName;
			this.password = password;
		}
		public Integer getId() {
			return id;
		}
		public void setId(Integer id) {
			this.id = id;
		}
		public String getUserName() {
			return userName;
		}
		public void setUserName(String userName) {
			this.userName = userName;
		}
		public String getPassword() {
			return password;
		}
		public void setPassword(String password) {
			this.password = password;
		}
		
	public Object clone() throws CloneNotSupportedException
	{
		return super.clone();
	}
      @Override
    public String toString() {
    	// TODO Auto-generated method stub
    	return "Student[id:"+id+", userName:"+userName+", password:"+password+"]";
    }
   
}