Java对象流实例代码

java;">package objstream;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import java.util.Date;import java.util.Vector;import java.util.logging.Level;import java.util.logging.Logger;import javafx.scene.chart.PieChart.Data;/**  *  * @author Administrator  */public class ObjStream {	/**    * @param args the command line arguments    */	public static void main(String[] args) throws IOException {		try {			//这2句与FileOutputStream fout = new FileOutputStream("test.txt"); 			//是等价的 			FileOutputStream fout = null;			File f = new File("test.txt");			Vector v = new Vector();			//Vector变量 			v.add("不求有功");			v.add("才华出众");			v.add("瞬息万变");			fout = new FileOutputStream(f);			ObjectOutputStream Obj = new ObjectOutputStream(fout);			Object Oj = new Object();			Oj = new Date();			Obj.writeObject(Oj);			Obj.writeObject(v);			Obj.close();			FileInputStream Fin = new FileInputStream(f);			ObjectInputStream Ois = new ObjectInputStream(Fin);			Object Oji = new Object();			//这里为什么要用2个OBJECT来输出求指教 			Oji = Ois.readObject();			//不用2个的话只输出时间 			System.out.println(Oji);			Object Oji2 = new Object();			Oji2 = Ois.readObject();			System.out.println(Oji2);		}		catch (FileNotFoundException ex) {			Logger.getLogger(ObjStream.class.getName()).log(Level.SEVERE, null, ex);		}		catch (ClassNotFoundException ex) {			Logger.getLogger(ObjStream.class.getName()).log(Level.SEVERE, null, ex);		}	}}