Remove specific characters from file name if exists

There was many songs with the name of websites from which they were downloaded. i wanted to remove the name of websites from the name of song. Just for cleanness of name appearances in music player. I made java program for that.


import java.io.File;

public class StringRepeat {
static File f[] = new File("c:/users/thesa/desktop/new folder/").listFiles();
static String str[] = new String[f.length];

public static void main(String agrs[]) {

for (int i = 0; i < f.length; i++) {
str[i] = (f[i].getName());
StringBuffer sb = new StringBuffer(str[i]);
int x = (sb.lastIndexOf("www.djmaza.com"));

if (x > 0) {
System.out.println("File before renaming " + sb);
sb.delete(x, x + 3);
System.out.println("File after renaming " + sb);
System.out.println("result from getparent " + f[i].getParent());
System.out.println("For loop end");
File renamed = new File(f[i].getParent() + "/ " + sb);
f[i].renameTo(renamed);
} else {
System.out.println("no xyz found for " + f[i].getAbsolutePath());
}
}
}

}