CODEWITHSUNDEEP
java
Ciprian
Ciprian

Reputation: 83

Finding files with .java extension in specified folder

Task :

Write a Java application that accepts two file names as arguments: dirName and fileName Find all non-directory files contained in directory dirName whose name ends in ".java"

I tried to use this code but how can I print out the files ending with ".java" ? It's the first time I work with this things and I don't know how to use them.

import java.io.File;
import java.io.FilenameFilter;

public class Filter {

    public static File[] finder(String dirName){
        File dir = new File(dirName);

        return dir.listFiles(new FilenameFilter() { 
                 public boolean accept(File dir, String filename)
                      { return filename.endsWith(".txt"); }
        });

    }

    public static void main(String[] args){
        String dirName = "src";
        System.out.println(finder(dirName));

    }

}

Upvotes: 0

Views: 177

Answers (2)

Ciprian
Ciprian

Reputation: 83

Thanks for the help. It works fine now .

import java.io.*;

public class Filter {

  public static File[] finder(String dirName) {
    File dir = new File(dirName);

    return dir.listFiles(new FilenameFilter() {
      public boolean accept(File dir, String filename) {
        return filename.endsWith(".java");
      }
    });
  }

  public static void main(String[] args) {
    String dirName = "src";
    File[] files = finder(dirName);
    for (File i: files)
      System.out.println(i.getName());
  }

}

Upvotes: 0

Reimeus
Reimeus

Reputation: 159754

return !dir.isDirectory() && filename.endsWith(".java");

Upvotes: 2

Related Questions