deletedir.java

Java编程100例,提供了很多经典实例来说明Java

package jdeletedirdemo;

import java.io.File;
import java.io.IOException;
import java.util.LinkedList;
import javax.swing.*;
public class DeleteDir{
  private JTextArea jTextArea;

  public DeleteDir(JTextArea jTextArea){
    this.jTextArea = jTextArea;

  }
  public void delete(File dir) throws IOException{
    LinkedList dirs = new LinkedList();
    dirs.add(dir);
    while(dirs.size() > 0){
      File currentDir = (File)dirs.getFirst();
      File[] files = currentDir.listFiles();
      boolean emptyDir = true;
      for(int i = 0 ;i < files.length;i++){
        if (files[i].isFile()){
          log(files[i].getAbsolutePath());
          files[i].delete();
        }else{
          dirs.addFirst(files[i]);
          emptyDir = false;
        }
      }
      if (emptyDir){
        log(currentDir.getAbsolutePath());
        currentDir.delete();
        dirs.removeFirst();
      }
    }
  }
  public void log(String msg){
    //System.out.println(msg);
    this.jTextArea.append("Deleting ..."+msg+"\n");
  }

}