readobject.java

来自「java 完全探索的随书源码」· Java 代码 · 共 42 行

import java.io.*;
import java.util.*;

// This class opens up the file "writeme" and reads two
// objects from it. It makes no assumptions about the
// types of the objects, it just prints them out.

public class ReadObject extends Object
{
  public static void main(String[] args)
  {

    try
    {
      // Open an input stream to the file "writeme"
      FileInputStream fileIn = new FileInputStream( "writeobject.txt" );

      // Create an ObjectInput filter on the stream
      ObjectInputStream objIn = new ObjectInputStream(fileIn);

      // Read in the first object and print it
      Object ob1 = objIn.readObject();
      System.out.println(ob1);

      // Read in the second object and print it
      Object ob2 = objIn.readObject();
      System.out.println(ob2);

      // Close the stream
       objIn.close();
    }
    catch( ClassNotFoundException ex )
    {
      ex.printStackTrace();
    }
    catch( IOException ex )
    {
      ex.printStackTrace();
    }
  }
}