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  1. PO
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    <p>How about using an <code>enum</code> here's the entire game...</p> <pre><code>public static enum RPS { ROCK, PAPER, SCISSORS; // Simple method to get the appropriate enum. public static RPS fromString(String in) { if (in.toLowerCase().startsWith("r")) { return ROCK; } else if (in.toLowerCase().startsWith("p")) { return PAPER; } else if (in.toLowerCase().startsWith("s")) { return SCISSORS; } return null; } // Calculate the winner in a contest. public Boolean wins(RPS in) { if (this == in) { // Tie! return null; } switch (this) { case ROCK: if (in == SCISSORS) { // Rock beats scissors. return true; } return false; case PAPER: if (in == ROCK) { // Paper beats rock. return true; } return false; case SCISSORS: if (in == PAPER) { // Scissors beats paper. return true; } return false; } return null; } } public static void main(String[] args) { Random r = new Random(System.currentTimeMillis()); String[] choices = new String[] { "R", "P", "S" }; Scanner in = new Scanner(System.in); while (in.hasNextLine()) { System.out.println("Please enter (R)ock, (P)aper " + "or (S)cissors to play. (Q)uit."); String c = in.nextLine(); c = c.trim(); if (c.toLowerCase().startsWith("q")) { break; } RPS player = RPS.fromString(c); RPS computer = RPS.fromString(choices[r .nextInt(choices.length)]); System.out.println("Computer picked " + computer); if (player.wins(computer) == null) { System.out.println("It's a Tie"); } else if (player.wins(computer)) { System.out.println("You won"); } else { System.out.println("The comptuer won"); } } } </code></pre>
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    1. POA more efficient way that takes less space? this is a method btw
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    1. USElliott Frisch
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    1. COUnfortunately I haven't learned enum yet but as they say it's the thought that counts. Thanks.
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