filewritertest.java

java I/0流的代码程序

import java.io.*;
import javax.swing.*;
class FileWriterTest
{
  public static void main(String argv[])
  {
    File file = null;
    FileWriter writeFile = null;
    BufferedWriter out = null;
    String name = JOptionPane.showInputDialog("Input the .txt file name");
    if(name!=null)
    {
      try {
        file = new File(name + ".txt"); //创建文件对象file
        file.createNewFile(); //创建新的文件
      }
      catch (IOException e) {}
    }
    else System.out.println("Can not create a file!");
    String content = JOptionPane.showInputDialog("Please input the contents of this file:");
    try
    {
      writeFile = new FileWriter(file);
    }
    catch(IOException e){}
    out = new BufferedWriter(writeFile);
    try
    {
      out.write(content);
      out.flush();
      out.close();
      writeFile.close();
    }
    catch(IOException e){}
  }
}