How to traverse a directory structure in Java

In this example, the program will traverse the given directory and print out all the directories and files absolute path and name one by one.

Example

DirectoryTraverse.java

package com.favtuts.io.directory;

import java.io.File;

public class DirectoryTraverse {

	public static void main (String args[]) {

		displayIt(new File("/home/tvt/workspace/favtuts/test"));
	}
	
	public static void displayIt(File node){
		
		System.out.println(node.getAbsoluteFile());
		
		if(node.isDirectory()){
			String[] subNote = node.list();
			for(String filename : subNote){
				displayIt(new File(node, filename));
			}
		}
		
	}
}

Output

/home/tvt/workspace/favtuts/test
/home/tvt/workspace/favtuts/test/test-a1.log
/home/tvt/workspace/favtuts/test/soft-link
/home/tvt/workspace/favtuts/test/data
/home/tvt/workspace/favtuts/test/data/db.debug.conf
/home/tvt/workspace/favtuts/test/test-a2.log
/home/tvt/workspace/favtuts/test/file.txt
/home/tvt/workspace/favtuts/test/Test.java
/home/tvt/workspace/favtuts/test/test.log
/home/tvt/workspace/favtuts/test/test-b
/home/tvt/workspace/favtuts/test/test-b/test-b2.txt
/home/tvt/workspace/favtuts/test/test-b/test-d
/home/tvt/workspace/favtuts/test/test-b/test-d/test-d1.log
/home/tvt/workspace/favtuts/test/test-b/test-d/test-d2.log
/home/tvt/workspace/favtuts/test/test-b/test-c
/home/tvt/workspace/favtuts/test/test-b/test-c/test-c2.log
/home/tvt/workspace/favtuts/test/test-b/test-c/test-c1.log
/home/tvt/workspace/favtuts/test/test-b/test-b1.txt
/home/tvt/workspace/favtuts/test/README.md

Download Source Code

$ git clone https://github.com/favtuts/java-core-tutorials-examples

$ cd java-io/directory