creatquestion.java

这是我们写的考试系统！！java编写的！！不是很大！！希望有用

import java.io.*;
import java.lang.StringBuilder;
import java.util.LinkedList;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.filechooser.FileFilter;



public class CreatQuestion{
	public static void main(String[] args){
	_Filter f=new _Filter();
	
	
	}
	
	
	
}

class   _Filter extends FileFilter   
  {   
        public void addExtension(String extension)   
        {   
              if (!extension.startsWith("."))   
                    extension = "." + extension;   
              extensions.add(extension.toLowerCase());         
        }   
        public void setDescription(String aDescription)   
        {   
              description = aDescription;   
        }   
        public String getDescription()   
        {   
              return description;     
        }   
    
        public boolean accept(File   f)   
        {   
              if(f.isDirectory()) return true;   
              String name = f.getName().toLowerCase();   
              for(int i = 0; i < extensions.size(); i++)   
                    if (name.endsWith((String)extensions.get(i)))     
                          return true;   
              return false;   
        }   
          
        private String description="";   
        private LinkedList extensions=new LinkedList();   
  }