CommandWords

/**
 * Write a description of class CommandWords here.
 *
 * @author Daffa Tristan Firdaus
 * @version 18 November 2020
 */

public class CommandWords
{
    // a constant array that holds all valid command words
    private static final String[] validCommands = {
        "go", "quit", "help", "look"
    };

    /**
     * Constructor - initialise the command words.
     */
    public CommandWords()
    {
        // nothing to do at the moment...
    }

    /**
     * Check whether a given String is a valid command word.
     * Return true if it is, false if it isn't.
     * @return bool
     */
    public boolean isCommand(String aString)
    {
        for(int i = 0; i < validCommands.length; i++) {
            if(validCommands[i].equals(aString))
                return true;
        }
        //if we get here, the string was not found in the commands
        return false;
    }
}