guess

import java.util.Random;
import java.util.Scanner;

public class Guess {
    public static void main(String[] args) {
        Random randNumGen = new Random();
        Scanner input = new Scanner(System.in);
        int numberToGuess = randNumGen.nextInt(100) + 1;
        mainValid(input, numberToGuess);
        input.close();
    }

    public static int getValidInput(Scanner input, String prompt) {
        int value = 0;
        while(true) {
            System.out.print(prompt);
            if (input.hasNextInt()) {
                value = input.nextInt();
                if (value >= 1 && value <= 100) {
                    break;
                } else {
                    System.out.println("Invalid input. Please enter a number with 1-100.");
                }
            } else {
                System.out.println("Invalid input. Please enter a number from 1-100.");
                input.next();
            }
        }
        return value;
    }

    public static void mainValid(Scanner input, int randNum) {
        int guess;
        int numberOfTries = 0;
        boolean areYaWinninSon = false;
        while (areYaWinninSon == false) {
            guess = getValidInput(input, "Guess a number between 1-100:\t");
            numberOfTries++;

            if (guess == randNum) {
                areYaWinninSon = true;
            } else if (guess < randNum) {
                System.out.println("Your guess is too low.");
            } else {
                System.out.println("Your guess is too high.");
            }
        }
        System.out.println("Congratulations! You've guessed the number in " + numberOfTries + " tries!");
    }
}