How to filter Text files in a directory

How to filter Text files in a directory?

• In Java, we can get all files, filter our required files from a directory using the File concept which is available in java.io package.

Demo on Filter Text files:

import java.io.File;

public class DirectoryFilesCount {
    public static void main(String args[]) {
        int countTextFiles = 0;

        String directorypath = "D:\\path\\Files";

        File directory = new File(directorypath);

        File[] files = directory.listFiles();

        System.out.println("<--Files in a directory-->");
        for (File f : files) {
            System.out.println(f.getName());
        }

        System.out.println("<--Text Files in a directory-->");
        for (File file : files) {
            if (file.getName().endsWith(".txt")) {
                System.out.println(file.getName());
                countTextFiles++;
            }
        }
        System.out.println("Total number of Text files in directory=" + countTextFiles);
    }
}

Filter Files

Here we have different types of files in a directory but we can filter only Txt files and total number of txt files in a directory.

Output:

<--Files in a directory-->
File1.txt
File2.pub
File3.docx
File4.zip
File5.xlsx
File6.txt
<--Text Files in a directory-->
File1.txt
File6.txt
Total number of Text files in directory=2

Likewise as above, we can filter other type of files such as zip,pub,bat,xlsx,docx etc.,.

Please comment below to feedback or ask questions.