Thread: HashMap to Call a Method

Hi Guys, I'm new to this forum , and Really need some help

I'm working under BlueJ as this is how the university is teaching us

I have a program that when you type "Circle" to the Console , the Circle will appear (See Below)
1.jpg

This is done because I have a method that makes the circle visible and a execute to call it

2.jpg

Now I want to be able to use a HashMap (as required for the task) and be able to add more Options such as "move.Left" or "move.Right" when I type Circle move left or Circle move right into the console
I tried so many things!
Really need advice.

Thanks

 <
/**
 * A class that allows the user to program with shapes.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class ShapeProgrammer
{
    // Obtain commands from the user.
    private InputReader reader;
 
    /**
     * Constructor for objects of class ShapeProgrammer
     */
    public ShapeProgrammer()
    {
        reader = new InputReader();
    }
 
    /**
     * Allow the user to program with shapes interactively.
     * Repeatedly request commands until the user types "quit".
     */
    public void program()
    {
        printWelcome();
        // Keep reading commands until the user types quit.
        boolean programming = true;
 
        while(programming) {
            String[] commands = reader.getInput();
            if(commands.length > 0) {
                // Handle program exit here.
                if(commands[0].equals("quit")) {
                   programming = false;
                }
                else {
                    execute(commands);
                }
            }
        }
 
        printGoodbye();
    }
 
    /**
     * Print a welcome message.
     */
    private void printWelcome()
    {
        System.out.println("Welcome to the shape programmer.");
        printHelp();
    }
 
    /**
     * Print a goodbye message.
     */
    private void printGoodbye()
    {
        System.out.println("Goodbye");
    }
 
    /**
     * Print the help.
     */
    private void printHelp()
    {
        System.out.println("Type commands like: ");
        System.out.println("    circle");
        System.out.println("to create a circle.");
        System.out.println("Type: ");
        System.out.println("    quit");
        System.out.println("to finish.");
    }
 
    /**
     * Execute the command records in commands.
     * @commands The individual words of the command.
     *           commands.length > 0
     */
    private void execute(String[] commands)
    {
        String basicCommand = commands[0];
        if(basicCommand.equals("circle")) {
            makeACircle(commands);
        }
        else if(basicCommand.equals("help")) {
            printHelp();
 
        }
        else {
            System.out.println("Unknown command: " + basicCommand);
        }
    }
 
    /**
     * Create a Circle and make it visible.
     * @param commands The current command words.
     *                 Not currently used.
     */
    private void makeACircle(String[] commands)
    {
        Circle c = new Circle();
        c.makeVisible();
    }
 
 
 
}
>

Well, The question says, Improve the program so You have more option such as move the circle left or right, when typing into the terminal window.
at the moment I can just make the circle appear when typing the word "circle"

--- Update ---

They Also advice you to use a HashMap