Java对象流实例代码

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,ex);
		}
	}
}