急问，java的io操作！？？

[zhu_jiajun]

请问，在java中如何删除一个指定文件！？

[skyyoung]

import java.io.File;
import java.io.FilenameFilter;
import java.lang.*;
public class delfile {
public static void main (String args[]) {
System.out.println("hello");
delfile td = new delfile();
td.deleteFiles("c:/test/", ".gif");
}

public void deleteFiles( String d, String e ) {
ExtensionFilter filter = new ExtensionFilter(e);
File dir = new File(d);

String[] list = dir.list(filter);
File file;
if (list.length == 0) return;

for (int i = 0; i < list.length; i++) {
file = new File(d + list[i]);
boolean isdeleted = file.delete();
System.out.print(file);
System.out.println( " deleted " + isdeleted);
}
}

class ExtensionFilter implements FilenameFilter {
private String extension;
public ExtensionFilter( String extension ) {
this.extension = extension;
}
public boolean accept(File dir, String name) {
return (name.endsWith(extension));
}
}
}