fileapp2.java

一个遍历文件系统目录结构的程序并能够将其结构用字符打印出来

package stream;

import javax.swing.UIManager;
import java.io.*;
/**
 * Title:
 * Description:
 * Copyright:    Copyright (c) 2002
 * Company:
 * @author
 * @version 1.0
 */

public class FileApp2 {
  boolean packFrame = false;

  /**Construct the application*/
  public FileApp2() {
    Frame1 frame = new Frame1();
    //Validate frames that have preset sizes
    //Pack frames that have useful preferred size info, e.g. from their layout
    if (packFrame) {
      frame.pack();
    }
    else {
      frame.validate();
    }
    frame.setVisible(true);
  }
  /**Main method*/
  public static void main(String[] args) {
      byte buffer[]=new byte[80];
  try
     {System.out.println("\nEnter a line to be saved to disk:");
     int bytes =System.in.read(buffer);
     FileOutputStream fileOut=new FileOutputStream("line.txt");
     fileOut.write(buffer,0,bytes);
     }
   catch(Exception e)

    {String err=e.toString();
      System.out.println(err);
    }
    try {
      UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    }
    catch(Exception e) {
      e.printStackTrace();
    }
    new FileApp2();
  }
}