Demonstrate your understanding of tree data structure Write

Demonstrate your understanding of tree data structure: Write a Java program in pseudo code to accomplish the following tasks: Identify and display the number of files in the current directory where the file is located.

Solution

import java.io.File;

public class CurrentDirectory {

   public static void main(String[] args) {
       File currentDir = new File(\"\").getAbsoluteFile();

       File[] listOfFiles = currentDir.listFiles();
       int count = 0;

       for (int i = 0; i < listOfFiles.length; i++) {
           if (listOfFiles[i].isFile()) {
               System.out.println(\"File \" + listOfFiles[i].getName());
               count++;
           } else if (listOfFiles[i].isDirectory()) {
               System.out.println(\"Directory \" + listOfFiles[i].getName());
           }
       }
       System.out
               .println(\"Number of files in the current directory: \" + count);

   }
}

OUTPUT:

File .classpath
File .project
File babynamerank2006.txt
Directory bin
Directory src
Number of files in the current directory: 3