引用：http://www.javaeye.com/topic/263748
import java.io.*;
public class OnlyExt implements FilenameFilter{
String strExt;
public OnlyExt(String strExt){
this.strExt = "." + strExt;
}
public boolean accept(File fleDir,String strName){
return strName.endsWith(strExt); //此处也可以写正则表达式进行匹配
}
}
//Directory of .TXT files.
import java.io.*;
class DirListOnly{
public static void main(String[] args)
{
String strDirName = "c:/winnt";
File f1 = new File(strDirName);
FilenameFilter only = new OnlyExt("txt");
String s[] = f1.list(only);
for(int i=0;i<s.length;i++){
System.out.println(s[i]);
}
}
}