javaavavavava

package main;

import java.io.File;
import java.util.Scanner;

public class Main {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);
		String komanda = "";
		File currentDir = new File(".");

		while (!(komanda.equals("quit"))){
			System.out.println(currentDir.getAbsolutePath() + " >");
			komanda = sc.nextLine();
			switch (komanda) {
			case "dir":

				File[] files = currentDir.listFiles();
				for (File f : files) {
				    if (f.isFile()) {
				        System.out.println(f.getName());
				    }
				}
				break;

			case "cd":


				System.out.println("CD command called.");
				System.out.println("Current directory changed from <" + currentDir.getAbsolutePath() + "> to <" + currentDir.getParent() + ">\n");
				currentDir = new File(currentDir.getAbsoluteFile().getParent());
				break;

			default:
				System.out.println("Invalid command!\n");
				break;
			}


		}
	}


}