Anyone wanna help me with this java code?

[steVENOM]

so I've got a code that I've started in a program called BlueJ, a work environment used for java. The program I am trying to write is basically a wizard school quiz to find out which school you belong to. If you need to get an Idea if what im trying to make, Im basically trying to replicate the intro quiz from wizard101, which can be found here: https://www.wizard101.com/create_wizard/?utm_campaign=disp_ad2games&utm_source=ad2games.18470_3278p&utm_medium=display&utm_content=wizard

 

If anyone could help me out, I just need help figuring out how to set up basic choices kind of like an A,B,C,D sort of quiz. I just want to learn the fundamentals of writing a small quiz. 

 

I am a few weeks into an AP Computer Science class and I just sort of want to learn this concept a little before it is taught.

 

Here is my code so far:

[Guest]

I'm not that well versed in Java but don't you need to declare the variable as a sting/float/etc else you get an error?

[steVENOM]

Just now, tjcater said:

I'm not that well versed in Java but don't you need to declare the variable as a sting/float/etc else you get an error?

Alright, I might try changing the order of how things are declared

 

[Guest]

Just now, steVENOM said:

Alright, I might try changing the order of how things are declared

 

Not the order but declaring it like:

Float someVariable = School.Fire
String someVariable = School.Something

 

[steVENOM]

1 minute ago, tjcater said:

Not the order but declaring it like:

Float someVariable = School.Fire
String someVariable = School.Something

 

Oh that makes sense, alright I'll try that

[shadowbyte]

you could use a Scanner to take user input, and specify in the question it must be "a, b, c, d"

sort of like this:

String ans;
Scanner keyboard = new Scanner(System.in);
System.out.println("Please answer a, b, c, or d");
System.out.println("What is your favorite type of aardvark? \n a. eastern \n b. western \n c. northern \n d. midwestern");
ans = keyboard.nextLine();

if(ans.equals("a"))
{
	//whatever
}

//etc.

it's super clunky and I'm sure there's a better solution, but it should work

hopefully

hopefully...

[steVENOM]

Just now, shadowbyte said:

you could use a Scanner to take user input, and specify in the question it must be "a, b, c, d"

sort of like this:

String ans;
Scanner keyboard = new Scanner(System.in);
System.out.println("Please answer a, b, c, or d");
System.out.println("What is your favorite type of aardvark? \n a. eastern \n b. western \n c. northern \n d. midwestern");
ans = keyboard.nextLine();

if(ans.equals(a))
{
	//whatever
}

//etc.

it's super clunky and I'm sure there's a better solution, but it should work

hopefully

hopefully...

Okay! I'll give that a shot too, thank you!

[Shiv78]

3 minutes ago, shadowbyte said:

you could use a Scanner to take user input, and specify in the question it must be "a, b, c, d"

sort of like this:

String ans;
Scanner keyboard = new Scanner(System.in);
System.out.println("Please answer a, b, c, or d");
System.out.println("What is your favorite type of aardvark? \n a. eastern \n b. western \n c. northern \n d. midwestern");
ans = keyboard.nextLine();

if(ans.equals("a"))
{
	//whatever
}

//etc.

it's super clunky and I'm sure there's a better solution, but it should work

hopefully

hopefully...

Can also use a Switch statement.

 

switch(ans){
	case "a":
		//code
	break;

//etc.

default:
	//code
break;
}

 

OP, btw, I don't remember there being any Scanners on the AP CS exam or in the curriculum last year. We only used them in class mostly for fun lol.

[steVENOM]

Just now, Shiv78 said:

Can also use a Switch statement.

 

switch(ans){
	case "a":
		//code
	break;

//etc.

default:
	//code
break;
}

 

OP, btw, I don't remember there being any Scanners on the AP CS exam or in the curriculum last year. We only used them in class mostly for fun lol.

Okay, gotcha

[luckydog32]

I know this is a bit late, but I put together a little demo and posted it on GitHub if you want to check it out. I used a couple of different design patterns you'll probably use in later courses if you stick with it and a few different operators that are new to me as well. I split it up more than I had to, but I think its good to start thinking of how to modularize your code early on. Hopefully it helps you out a bit.

 

As for enums, there's no reason to make an instance of them, the point is that they are static so when you want to use one you can just use Schools.FIRE for example with no extra work.

 

For easy access if you don't feel like dealing with github, WARNING UN-FORMATTED CODE DUMP AHEAD TURN BACK NOW

Spoiler

public class QuizInitializer {
	
	public static final String Q1_QUESTION = "Which of these is the most powerful?";
	public static final String Q1_OPT_1 = "Volcano";
	public static final String Q1_OPT_2 = "Blizzard";
	public static final String Q1_OPT_3 = "Tornado";
	public static final String Q1_OPT_4 = "Sandstorm";
	
	public static final String Q2_QUESTION = "What is your favorite activity?";
	public static final String Q2_OPT_1 = "Competitive Sports";
	public static final String Q2_OPT_2 = "Learning something new";
	public static final String Q2_OPT_3 = "Playing with pets";
	public static final String Q2_OPT_4 = "Reading, playing games";
	public static final String Q2_OPT_5 = "Camping or fishing";
	
	public static final String Q3_QUESTION = "What is your favorite time of day?";
	public static final String Q3_OPT_1 = "Morning";
	public static final String Q3_OPT_2 = "Afternoon";
	public static final String Q3_OPT_3 = "Night";

	public static void main(String[] args) {

		//Set up test Questions
		QuizQuestion q1 = new QuizQuestion();
		q1.setQuestion(Q1_QUESTION);
		q1.addAllOptions(Q1_OPT_1,
					Q1_OPT_2,
					Q1_OPT_3,
					Q1_OPT_4);
		
		QuizQuestion q2 = new QuizQuestion();
		q2.setQuestion(Q2_QUESTION);
		q2.addAllOptions(Q2_OPT_1,
					Q2_OPT_2,
					Q2_OPT_3,
					Q2_OPT_4,
					Q2_OPT_5);
		
		
		QuizQuestion q3 = new QuizQuestion();
		q3.setQuestion(Q3_QUESTION);
		q3.addAllOptions(Q3_OPT_1,
					Q3_OPT_2,
					Q3_OPT_3);
		
		//Put the questions in a quiz
		WizardQuiz quiz = new WizardQuiz();
		quiz.addAllQuestions(q1, q2, q3);
		
		//Take the quiz
		quiz.takeQuiz();
		System.out.println("Your school is: " + quiz.getResults());		
	}

}

public abstract class Quiz {
	
	private final Scanner input = new Scanner(System.in);
	
	List<QuizQuestion> questions;
	List<String> answers;
	
	public Quiz(){
		questions = new ArrayList<>();
		answers = new ArrayList<>();
	}
	
	public void addAllQuestions(QuizQuestion... questions){
		for(QuizQuestion question: questions){
			this.questions.add(question);
		}
	}
	
	public void addQuestion(QuizQuestion question){
		this.questions.add(question);
	}
	
	public List<String> getAnswers(){
		return answers;
	}
	
	public void takeQuiz(){
		questions.forEach(q ->{
			String answer = null;
			while(answer == null){
				System.out.println(q.getQuestion());
				List<String> options = q.getOptions();
				for(int i = 0; i < options.size(); i++){
					String option = options.get(i);
					System.out.println("[" + (i+1) + "]" + option);
				}
				System.out.print("> ");
				try{
					int index = input.nextInt()-1;
					if(index >= 0 && index < options.size()){
						answer = options.get(index);
					}else{
						System.out.println("You must a valid answer!");
					}
				}catch(InputMismatchException e){
					System.out.println("You must input a number!");
					//clear the buffer so its not an infinite loop
					input.nextLine();
				}
			}
			answers.add(answer);
		});
	}
	
	public abstract String getResults();

}

public class WizardQuiz extends Quiz{
	
	double fireTotal;
	double iceTotal;
	double windTotal;
	
	public WizardQuiz(){
		resetValues();
	}

	@Override
	public String getResults() {
		resetValues();
		updateValues();
		return getMaxSchool();
	}
	
	public void resetValues(){
		fireTotal = 0;
		iceTotal = 0;
		windTotal = 0;
	}
	
	private String getMaxSchool(){
		double[] schoolArray = {fireTotal, iceTotal, windTotal};
		int maxIndex = 0;
		for(int i = 1; i < schoolArray.length; i++){
			if(schoolArray[i] > schoolArray[maxIndex]){
				maxIndex = i;
			}
		}
		
		switch(maxIndex){
			case 0: 
				return "School of Fire";
			case 1:
				return "School of Ice";
			case 2:
				return "School of Wind";
			default:
				return "School of Error";
		}
		
	}
	
	public void updateValues(){
		String a1 = answers.get(0);
		switch(a1){
			case QuizInitializer.Q1_OPT_1: //Volcano
				fireTotal += 10;
				iceTotal  += -5;
				windTotal += 1;
				break;
			case QuizInitializer.Q1_OPT_2: //Blizzard
				fireTotal += -5;
				iceTotal  += 10;
				windTotal += 5;
				break;
			case QuizInitializer.Q1_OPT_3: //Tornado
				fireTotal += 2;
				iceTotal  += 0;
				windTotal += 10;
				break;
			case QuizInitializer.Q1_OPT_4: //Sandstorm
				fireTotal += 3;
				iceTotal  += -1;
				windTotal += 7;
				break;
		}
		
		String a2 = answers.get(1);
		switch(a2){
			case QuizInitializer.Q2_OPT_1: //Competitive Sports
				fireTotal += 10;
				iceTotal  += 7;
				windTotal += 5;
				break;
			case QuizInitializer.Q2_OPT_2: //Learning something new
				fireTotal += 0;
				iceTotal  += 10;
				windTotal += 5;
				break;
			case QuizInitializer.Q2_OPT_3: //Playing with pets
				fireTotal += -4;
				iceTotal  += 3;
				windTotal += 4;
				break;
			case QuizInitializer.Q2_OPT_4: //Reading, playing games
				fireTotal += 3;
				iceTotal  += -1;
				windTotal += 7;
				break;
			case QuizInitializer.Q2_OPT_5: //Camping or fishing
				fireTotal += -5;
				iceTotal  += 7;
				windTotal += -2;
				break;
		}
		
		String a3 = answers.get(2);
		switch(a3){
			case QuizInitializer.Q3_OPT_1: //Morning
				fireTotal += 10;
				iceTotal  += 7;
				windTotal += 5;
				break;
			case QuizInitializer.Q3_OPT_2: //Afternoon
				fireTotal += 0;
				iceTotal  += 10;
				windTotal += 5;
				break;
			case QuizInitializer.Q3_OPT_3: //Night
				fireTotal += -4;
				iceTotal  += 3;
				windTotal += 4;
				break;
		}
	}

}

public class QuizQuestion {
	private String question;
	private List<String> options;
	
	public QuizQuestion(){
		options = new ArrayList<>();
	}
	
	public void addOption(String option){
		options.add(option);
	}
	
	public void addAllOptions(String... options){
		for(String option: options){
			this.options.add(option);
		}
	}
	
	public List<String> getOptions(){
		return options;
	}
	
	public void setQuestion(String question){
		this.question = question;
	}
	
	public String getQuestion(){
		return question;
	}
}