diff --git a/core-java-modules/core-java-8-2/src/main/java/com/baeldung/game/RockPaperScissorsGame.java b/core-java-modules/core-java-8-2/src/main/java/com/baeldung/game/RockPaperScissorsGame.java new file mode 100644 index 0000000000..fc9299f12d --- /dev/null +++ b/core-java-modules/core-java-8-2/src/main/java/com/baeldung/game/RockPaperScissorsGame.java @@ -0,0 +1,66 @@ +package com.baeldung.game; + +import java.util.HashMap; +import java.util.Map; +import java.util.Random; +import java.util.Scanner; + +class RockPaperScissorsGame { + + private static Map movesMap = new HashMap() {{ + put(0, "rock"); + put(1, "paper"); + put(2, "scissors"); + }}; + + public static void main(String[] args) { + Scanner scanner = new Scanner(System.in); + int wins = 0; + int losses = 0; + + System.out.println("Welcome to Rock-Paper-Scissors! Please enter \"rock\", \"paper\", \"scissors\", or \"quit\" to exit."); + + while (true) { + System.out.println("-------------------------"); + System.out.print("Enter your move: "); + String playerMove = scanner.nextLine(); + + if (playerMove.equals("quit")) { + System.out.println("You won " + wins + " times and lost " + losses + " times."); + System.out.println("Thanks for playing! See you again."); + break; + } + + if (!movesMap.containsValue(playerMove)) { + System.out.println("Your move isn't valid!"); + continue; + } + + String computerMove = getComputerMove(); + + if (playerMove.equals(computerMove)) { + System.out.println("It's a tie!"); + } else if (isPlayerWin(playerMove, computerMove)) { + System.out.println("You won!"); + wins++; + } else { + System.out.println("You lost!"); + losses++; + } + } + } + + private static boolean isPlayerWin(String playerMove, String computerMove) { + return playerMove.equals("rock") && computerMove.equals("scissors") + || (playerMove.equals("scissors") && computerMove.equals("paper")) + || (playerMove.equals("paper") && computerMove.equals("rock")); + } + + private static String getComputerMove() { + Random random = new Random(); + int randomNumber = random.nextInt(3); + String computerMove = movesMap.get(randomNumber); + System.out.println("Computer move: " + computerMove); + return computerMove; + } +} \ No newline at end of file