?? commandwords.java
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/** * This class is part of the "World of Zuul" application. * "World of Zuul" is a very simple, text based adventure game. * * This class holds an enumeration of all command words known to the game. * It is used to recognise commands as they are typed in. * * @author Michael Kolling and David J. Barnes * @version 2006.03.30 */public class CommandWords{ // a constant array that holds all valid command words private static final String[] validCommands = { "go", "quit", "help" }; /** * 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 a given string is a valid command, * false if it isn't. */ 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; }}
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