Stone-Paper-Scissors-Game

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#Stone Paper Scissor Game Without loop

This Java program is a simple Stone, Paper, Scissors game that allows a user to play against the computer. Below is a detailed description of its functionality:

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Program Overview:

1. Purpose:

   • The program simulates a game of "Stone, Paper, Scissors" between a user and the computer.
   • The game continues in a loop until the user decides to stop by typing anything other than "yes."

2. Core Features:

   • The user enters their choice (Stone, Paper, or Scissors).
   • The computer makes a random selection from the same options.
   • The program determines the winner of each round based on standard rules.
   • The user can play multiple rounds, and the program asks after each round if the user wants to continue.

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Code Walkthrough:

1. Scanner and Random Initialization:

   • A Scanner object is used to read input from the user.
   • A Random object is used to generate the computer's random choice.

   Scanner scanner = new Scanner(System.in);
   Random random = new Random();

2. Choices Array:

   • An array choices contains the three possible options: Stone, Paper, and Scissors.
   • The computer will randomly select one of these options using random.nextInt(3).

   String[] choices = {"Stone", "Paper", "Scissors"};

3. Game Loop:

   • The while (true) loop ensures the game continues until the user decides to stop.

   while (true) {
       ...
   }

4. User Input:

   • The program prompts the user to input their choice.

   System.out.println("Enter your choice (Stone, Paper, Scissors): ");
   String userChoice = scanner.nextLine();

5. Computer's Choice:

   • A random index between 0 and 2 is generated, and the corresponding choice from the choices array is assigned to computerChoice.

   int computerChoiceIndex = random.nextInt(3);
   String computerChoice = choices[computerChoiceIndex];

6. Outcome Determination:

   • The program compares the user’s choice and the computer’s choice:
     • Tie: If both choices are the same.
     • User Wins: Based on standard game rules (e.g., Stone beats Scissors, etc.).
     • Computer Wins: If it doesn’t tie and the user doesn’t win.

   if (userChoice.equalsIgnoreCase(computerChoice)) {
       System.out.println("It's a tie!");
   } else if ((userChoice.equalsIgnoreCase("Stone") && computerChoice.equalsIgnoreCase("Scissors"))
           || (userChoice.equalsIgnoreCase("Paper") && computerChoice.equalsIgnoreCase("Stone"))
           || (userChoice.equalsIgnoreCase("Scissors") && computerChoice.equalsIgnoreCase("Paper"))) {
       System.out.println("You win!");
   } else {
       System.out.println("Computer wins!");
   }

7. Replay Prompt:

   • After each round, the user is asked whether they want to play again.
   • If the user types anything other than "yes," the game exits.

   System.out.println("Play again? (yes/no): ");
   String playAgain = scanner.nextLine();
   if (!playAgain.equalsIgnoreCase("yes")) {
       break;
   }

8. Closing the Scanner:

   • The scanner.close() statement ensures that the Scanner object is closed properly, releasing any associated resources.

   scanner.close();

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Program Strengths:

• Basic Functionality:
  • Implements the game effectively and includes all basic components.
• Replay Option:
  • Allows users to play multiple rounds without restarting the program.
• Case Insensitivity:
  • Handles user input in a case-insensitive manner using equalsIgnoreCase.

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Potential Improvements:

1. Input Validation:

   • Currently, the program does not handle invalid input (e.g., "Rock" instead of "Stone").
   • Adding a check to ensure only valid inputs are accepted would make the program more robust.

2. Score Tracking:

   • Implement a scoring system to keep track of wins, losses, and ties over multiple rounds.

3. Output Formatting:

   • Enhance the display to make it more user-friendly, such as better formatting for each round's outcome and final scores.

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