testobjectoutput.java

java课件及例程有一些PPT及一些例程

import java.io.*;
public class TestObjectOutput{
    public static void main(String args[]){
        try{
            FileOutputStream s1 = new FileOutputStream("3.txt");
            ObjectOutputStream os = new ObjectOutputStream(s1);
            int a = 23;
            double d = 78.99;
            os.writeObject("hello");
            os.writeInt(a);
            os.writeDouble(d);
            os.flush();
            os.close();
        }catch(Exception e){}
    }
}