JaThs (Zaniac Anton Lesson 5)

AntonJaths.java

import java.util.Scanner;

class Main {
  // MATH GAME
  // - Display random math expression to user
  // - Allow user to type in the number
  // - Every correct answer adds 1 point
  // - User is allowed 3 mistakes
  // - Game finishes when 4 mistakes are made
  // - Displays final score to user
  
  static int score = 0;
  static int lives = 3;
  
  public static int getAnswer(String operator, int int1, int int2) {
    if (operator.equals("+")) {
      return int1 + int2;
    } else if (operator.equals("-")) {
      return int1 - int2;
    } else if (operator.equals("*")) {
      return int1 * int2;
    } else {
      return int1 / int2;
    }
  }
  
  public static String operationChoice() {
    int random = 1 + (int)(Math.random() * ((4 - 1) + 1));

    if (random == 1) {
      return "+";
    } else if (random == 2) {
      return "-";
    } else if (random == 3) {
      return "*";
    } else {
      return "/";
    }
  }
  
  public static void main(String[] args) {
    String name;
    Scanner keyboard = new Scanner(System.in);
    
    // Get the name
    System.out.print("Enter your name: ");
    name = keyboard.nextLine();
    
    // Show how to play the game
    System.out.println("Hello, " + name + ". Welcome to JaThs! Try to answer as many questions as you can. You have " + lives + " lives.");
    
    while(lives > 0) {
      int int1 = 1 + (int)(Math.random() * ((100 - 1) + 1));
      int int2 = 1 + (int)(Math.random() * ((100 - 1) + 1));
      
      String operator = operationChoice();
      System.out.print(int1 + " " + operator + " " + int2 + " = ");
      
      int guess = keyboard.nextInt();
      int answer = getAnswer(operator, int1, int2);
      
      if (guess == answer) {
        System.out.println("That's right!");
        score++;
      } else {
        lives--;
        System.out.println("Wrong! You have " + lives + " lives left.");
      }
    }
    
    System.out.println("GAME OVER! You got " + score + " points!");
  }
  
  
}