Short and simple command interpreter using Java programming language

Actioner.java

package commandline.commands;

/**
 * Created by Сергій Шнуренко on 11.11.2015.
 */
public class Actioner implements Command {

    @Override
    public void execute(Object[] args) {
        //TODO: Implement code to get info based on args
        //Too much code will be here so I just do sth
        System.out.println("You running command action. It's implementation awesome");
        System.out.println("Your parameter list is:");
        if(args.length==0){
            System.out.println("[EMPTY]");
        }else
            for(int i=0; i<args.length;i++){
                System.out.format("[%d]\t"+args[i]+"\n",i);
            }
    }
}

Command.java

package commandline.commands;

/**
 * Created by Сергій Шнуренко on 11.11.2015.
 */
public interface Command {
    void execute(Object[] args);
}

CommandFactory.java

package commandline.commands;

/**
 * Created by Сергій Шнуренко on 11.11.2015.
 */
public abstract class CommandFactory {
    public static Command getCommand(String commandName){
        if(commandName.equalsIgnoreCase("action")){
            return new Actioner();
        }else if(commandName.equalsIgnoreCase("exit")){
            return new Exiter();
        }else if(commandName.equalsIgnoreCase("help")){
            return new Helper();
        }
        else{
            return null;
        }
    }
}

Exiter.java

package commandline.commands;

/**
 * Created by Сергій Шнуренко on 11.11.2015.
 */
public class Exiter implements Command {

    @Override
    public void execute(Object[] args) {
        if(args.length!=0){
            System.out.println("No reason to give me parameters, anyway I'll ignore them");
        }
        System.exit(0);
    }
}

Helper.java

package commandline.commands;

import java.util.HashMap;
import java.util.Map;

/**
 * Created by Сергій Шнуренко on 12.11.2015.
 */
public class Helper implements Command {

    @Override
    public void execute(Object[] args) {
        if(args.length==0){
            printAll();
        } else{
            printCommandHelp((String)args[0]);
        }
    }

    private void printAll(){
        System.out.println(
                "action - do some action\n" +
                "exit - exiting program(take no params)");
        //TODO: Print all methods help
    }

    private void printCommandHelp(String commandName){
        //Todo: implement me
        System.out.println("Here should be detailed command info about "+commandName+" if exist");
    }
}

Main.java

package commandline;


import commandline.commands.*;

import java.util.Scanner;


public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while(true){
            //getting user input
            System.out.print("Enter your command:");
            String userInput = scanner.nextLine();

            String[] splitedInput = userInput.split("[ ]+");

            //preparing data for creating and executing new command
            String commandName = splitedInput[0];
            Object[] commandArgs = new String[splitedInput.length-1];
            System.arraycopy(splitedInput,1,commandArgs,0,commandArgs.length);

            //executing command
            Command command =CommandFactory.getCommand(commandName);
            if(command!=null)
                command.execute(commandArgs);
            else
                System.out.println("Bad command. Try again or use help.");
        }
    }
}