Question

I’m trying to write this code using mostly arrays. I’m trying to get “Correct” or “Incorrect” to display after each question and to get a total of correct/incorrect answers at the end. The goal is to use arrays to accomplish this, but I can’t figure out how to use the array to display correct/incorrect after each question.

//Declarations
String rightAnswer[] = { "B", "C", "A" };
String userAnswer[] = new String [3];
String answer;
int counter;
int finalInt = 3;
int index = 0;
int correct = 0;
int incorrect = 0;

// detailedLoop
for(index = 0; index < finalInt; index++) {
    do {
        answer = JOptionPane.showInputDialog("What planet has the largest rings? \n\nA. Neptune \nB. Saturn \nC. Jupiter");
        userAnswer[index] = answer;
    } while(!(answer.equals("A")|| answer.equals("B") || answer.equals("C")));

    index++;
    do {    
        answer = JOptionPane.showInputDialog("What planet has a large redspot? \n\nA. Neptune \nB. Saturn \nC. Jupiter");
        userAnswer[index] = answer; 
    } while(!(answer.equals("A")|| answer.equals("B") || answer.equals("C")));

    index++;
    do {
        answer = JOptionPane.showInputDialog("What planet is farthest from the sun? \n\nA. Neptune \nB. Saturn \nC. Jupiter");
        userAnswer[index] = answer;
    } while(!(answer.equals("A")|| answer.equals("B") || answer.equals("C")));

    if(userAnswer[index].equals(rightAnswer[index])) {
        System.out.println("Correct!");
        correct++;
        index++;
    }
    if(!(userAnswer[index].equals(rightAnswer[index]))) {
        System.out.println("Incorrect. The right answer is " + rightAnswer[index] + ".");
        incorrect++;
        index++;
    }
}
System.out.println("Total correct:" + correct + ". Total incorrect: " + incorrect + ".");

Any help is appreciated, thanks.

Answer 1

This may be what you are trying to do, again, I don’t understand fully the question:

String questions[] = {
    "What planet has the largest rings? \n\nA. Neptune \nB. Saturn \nC. Jupiter",
    "What planet has a large redspot? \n\nA. Neptune \nB. Saturn \nC. Jupiter",
    "What planet is farthest from the sun? \n\nA. Neptune \nB. Saturn \nC. Jupiter"
};
String rightAnswer[] = { "B", "C", "A" };
String answer = null; // the user's answer
for (int i = 0; i < questions.length; i++) {
    do {
        answer = JOptionPane.showInputDialog(questions[i]);
    } while (!(answer.equals("A")|| answer.equals("B") || answer.equals("C")));
    String x = (answer.equals(rightAnswer[i])) ? "correct" : "incorrect.\nThe correct answer was " + rightAnswer[i];
    JOptionPane.showMessageDialog(null, "Your answer was " + x + ".");
}

Please excuse my style.