Following example shows how to search for a particular file in a directory by making a Filefiter. Following example displays all the files having file names starting with 'b'.
import java.io.*;
class Main {
public static void main(String[] args) {
File dir = new File("C:");
FilenameFilter filter = new FilenameFilter() {
public boolean accept
(File dir, String name) {
return name.startsWith("b");
}
};
String[] children = dir.list(filter);
if (children == null) {
System.out.println("Either dir does not
exist or is not a directory");
}
else {
for (int i=0; i< children.length; i++) {
String filename = children[i];
System.out.println(filename);
}
}
}
}
Result:
The above code sample will produce the following result.