updategame

import java.util.Scanner;

public class math {

    public static void main(String[] args) {
        Scanner keyboard = new Scanner(System.in);
        System.out.print("Masukkan Nama Anda:");
        String name = keyboard.nextLine();
        System.out.print("Selamat Datang " + name + "! Jawablah Pertanyaan Dengan Benar:");

        double correct = 0;


        for(int i=0; i<2; i++)  {
            int randomNumber1 =  (int)(20 * Math.random()) + 1;
            int randomNumber2 =  (int)(20 * Math.random()) + 1;
            int penjumlahan = randomNumber1 + randomNumber2;
            int Perkalian = randomNumber1 * randomNumber2;
            double pembagian = randomNumber1 / randomNumber2;
            int pengurangan = randomNumber1 - randomNumber2;
            double percentageCorrect = correct * 25;
            System.out.print(randomNumber1 + " + " + randomNumber2 + " = ");
            int Guesspenjumlahan = keyboard.nextInt();
            if (Guesspenjumlahan == randomNumber1 + randomNumber2) {
                System.out.println("Benar!");
                correct++;
            }
                else {
                    System.out.println("Salah!");
                    System.out.println("Jawaban Yang Benar Adalah = " + penjumlahan);}

            randomNumber1 =  (int)(20 * Math.random()) + 1;
            randomNumber2 =  (int)(20 * Math.random()) + 1;
            System.out.print(randomNumber1 + " * " + randomNumber2 + " = ");
            int GuessPerkalian = keyboard.nextInt();
            if (GuessPerkalian == randomNumber1 * randomNumber2) {
                System.out.println("Benar!");
                correct++;
                }
                else{
                    System.out.println("Salah!");
                    System.out.println("Jawaban Yang Benar Adalah = " + Perkalian);
                }

            randomNumber1 =  (int)(20 * Math.random()) + 1;
            randomNumber2 =  (int)(20 * Math.random()) + 1;
            System.out.print(randomNumber1 + " / " + randomNumber2 + " = ");
            double Guesspembagian = keyboard.nextInt();
            if (Guesspembagian == randomNumber1 / randomNumber2) {
                System.out.println("Benar!");
                correct++;
                }
                else{
                    System.out.println("Salah!");
                    System.out.println("Jawaban Yang Benar Adalah = " + Perkalian);
                }

            randomNumber1 =  (int)(20 * Math.random()) + 1;
            randomNumber2 =  (int)(20 * Math.random()) + 1;
             System.out.print(randomNumber1 + " - " + randomNumber2 + " = ");
             int Guesspengurangan = keyboard.nextInt();
             if (Guesspengurangan == randomNumber1 - randomNumber2) {
             System.out.println("Benar!");
                        correct++;
                    }
                    else{
                        System.out.println("Salah!");
                        System.out.println("Jawaban Yang Benar Adalah = " + pengurangan);
                    }
                }
        double percentageCorrect = (correct * 100)/8;
        System.out.println("Jumlah Persentase Benar Anda Adalah =  " + percentageCorrect);
    }
}