⑥ObjectPrintIO

package io;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.PrintStream;
import java.io.Serializable;

public class ObjectPrintIO {
	public static void main(String[] args) {
		try {
			FileOutputStream  fos = new FileOutputStream("F://eclipseWorkStation//temp//to//沙耶之歌.txt");
//			PrintStream ps = new PrintStream(fos);
//			ps.println();
//			ps.print("print");
//			ps.print(5);
			//Object
			ObjectOutputStream oos =  new ObjectOutputStream(fos);
			oos.writeObject(new Student());
			oos.flush();
			oos.close();
			FileInputStream fis = new FileInputStream("F://eclipseWorkStation//temp//to//沙耶之歌1.txt");
			ObjectInputStream ois = new ObjectInputStream(fis);
			Student s =(Student)ois.readObject();
			System.out.println(s.id);
			ois.close();
			fis.close();
			
			
		} catch (Exception e) {
			// TODO: handle exception
		}
	}
}

//Object 写入时必须序列化。
class Student implements Serializable{
	int id = 1;
	String name = "Mu";
}

 读取Object时必须对号入座，txt在复制内容时会缺失一些符号。