关于io的小问题，请指点

Question

byte[] b=strCount.getBytes();
tyr{
FileOutputStream outputfile =new FileOutputStream("albert.txt");
outputfile1.write(b);
}.......

Answer 1

给个演示程序你吧：
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;public class Frame1
{
  public static void main(String[] args)
  {
    JFrame frame = new SaveFrame();
    frame.show();
  }
}
class SaveFrame extends JFrame
{
   private JTextField number;
   private JButton saveButton;
   private JButton readButton;
   private String fileName="count.txt";  public SaveFrame()
  {
    this.setTitle("operation on "+fileName);
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    number = new JTextField("20",30);
    saveButton = new JButton("save");
    saveButton.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent event)
      {
        if(number.getText().length()<=0) return;
        try
        {
          DataOutputStream dos=new DataOutputStream(
              new FileOutputStream(new File(fileName)));
          dos.writeUTF(number.getText());
          dos.close();
        }
        catch(IOException e) {  e.printStackTrace();}
      }
     });
     readButton = new JButton("read from file");
     readButton.addActionListener(new ActionListener()
     {
       public void actionPerformed(ActionEvent event)
       {
         try
         {
           DataInputStream dis=new DataInputStream(
              new FileInputStream(new File(fileName)));
           number.setText(dis.readUTF());
           dis.close();
         }
         catch(IOException e){  e.printStackTrace(); }
       }
     });
     this.getContentPane().setLayout(new FlowLayout());
     this.getContentPane().add(number);
     this.getContentPane().add(saveButton);
     this.getContentPane().add(readButton);
     this.pack();
    }
}

Answer 2

有一个write()和一个flush()方法，你可以看一下帮助