请教一个有趣的问题

Question

如果把可序列化的对象存到文件里，再从文件里读出来呀，呵呵
谁能提供一段代码？谢谢

Answer 1

import java.util.Date;
import java.io.ObjectOutputStream;
import java.io.FileOutputStream;public class DateWrite {
  public static void main(String[] args) {
    try {
      FileOutputStream outputFile = new FileOutputStream("d:\\dateFile");
      ObjectOutputStream serializeStream = new ObjectOutputStream(outputFile);
      serializeStream.writeObject("Hi!");
      serializeStream.writeObject("Hello World!");
      serializeStream.writeObject(new Date());
      serializeStream.flush();
    } catch (Exception ex) {
      ex.printStackTrace();
    }
  }
}
import java.io.ObjectInputStream;
import java.io.FileInputStream;
import java.util.Date;public class DateRead {
  public static void main(String[] args) {
    Date wasThen = null;
    String theString = null;
    String hw = null;
    try {
      FileInputStream inputFile = new FileInputStream("d:\\dateFile");
      ObjectInputStream serializeStream = new ObjectInputStream(inputFile);
      hw = (String)serializeStream.readObject();
      theString = (String)serializeStream.readObject();
      wasThen = (Date)serializeStream.readObject();
    } catch (Exception ex) {
      ex.printStackTrace();
    }
    System.out.println("The String is: " + theString);
    System.out.println("The String is: " + hw);
    System.out.println("the old Date was: " + wasThen);
  }
}

Answer 2

楼上的方法对头！
public class DataFile {   public void dataWrite(String file) {
    try {
      FileOutputStream outputFile = new FileOutputStream(file);
      ObjectOutputStream serializeStream = new ObjectOutputStream(outputFile);
      serializeStream.writeObject("Hi!");
      serializeStream.writeObject("Hello World!");
      serializeStream.writeObject(new Date());
      serializeStream.flush();
    } catch (Exception ex) {
      ex.printStackTrace();
    }
  }   public void dataRead(String file) {
    Date wasThen = null;
    String theString = null;
    String hw = null;
    try {
      FileInputStream inputFile = new FileInputStream(file);
      ObjectInputStream serializeStream = new ObjectInputStream(inputFile);
      hw = (String)serializeStream.readObject();
      theString = (String)serializeStream.readObject();
      wasThen = (Date)serializeStream.readObject();
    } catch (Exception ex) {
      ex.printStackTrace();
    }
    System.out.println("The String is: " + theString);
    System.out.println("The String is: " + hw);
    System.out.println("the old Date was: " + wasThen);
  }
  
  public static void main(String[] args) {
   DataFile df = new DataFile();
   df.dataWrite("d:\\datafile");
   df.dataRead("d:\\datafile");
  }
}

Answer 3

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Date;