lotto.java

import java.util.InputMismatchException;
import java.util.Scanner;

public class lotto {

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);

    println("Lottery Program");

    int[] guessState = {};

    while (true) {
      guessState = menu(sc, guessState);
    }
  }

  static int[] menu(Scanner sc, int[] oldGuess) {
    boolean isFirstRound = oldGuess.length == 0;

    String prompt = "\nSelect 'n for choosing new numbers'";

    if (!isFirstRound) {
      prompt += ", 's' for using the same numbers";
    }

    prompt += "\nand 'q' to quit: ";

    print(prompt);

    String input = sc.next();

    switch (input) {
      case "n": {
        return playWithNew();
      }
      case "s": {
        if (!isFirstRound) {
          return playWithSame(oldGuess);
        }
      }
      case "q": {
        quit(sc);
      }
      default: {
        println("Invalid input.");
        return oldGuess;
      }
    }
  }

  static void print(String input) {
    System.out.print(input);
  }

  static void println(String input) {
    System.out.println(input);
  }

  static int[] playWithSame(int[] oldGuess) {
    return oldGuess;
  }

  static int[] playWithNew() {
    return null;
  }

  static void quit(Scanner sc) {
    sc.close();
    System.exit(0);
  }

  static int[] getLotteryNumbers(int amount) {
    return null;
  }

  static boolean hasWon(int[] guess, int[] draw) {
    return true;
  }

  static boolean isNumberInArray(int number, int[] arr) {
    return false;
  }

  // Position für Prompt bei falschem Input?
  static int getSafeInt(Scanner sc) {
    while (true) {
      try {
        int number = sc.nextInt();
        return number;
      } catch (InputMismatchException exception) {
        sc.nextLine();
        System.out.println("Invalid input. Please input a number between 1 and 49.");
      }
    }
  }
}