Question

IN JAVA

Create the “MathTest” class. It will have two class variables: 1) a question and 2) the answer to that question.

Please create an accessor and mutator method for both of those variables, without which we would not be able to see or change the question or the answer.

There should be a constructor method. We will also have a “ToString” method, which will print the question followed by its answer.

The constructor method has two parameters to allow the user to enter a question and answer, or if no input/parameters are given then a default question and answer should be supplied (see exercise 4 for the default question and answer).

The last method of the class, CheckAnswer, should take in a string as a parameter and compare it to the answer. If the input was incorrect, it should return false. Otherwise, it should return true.

Create an instance of the “MathTest” class in your “main” method. First ask the user if they want to enter a question and answer.

If they do, then allow them to enter the test question and its answer.

If they do not, then continue by using the default question and answer.

The default question should be “Find the value of x in 4 = x ^ 2” and the default answer should be “2”. Please use the appropriate constructor methods here.

Then, using the “ToString” method, have it print out those class variables as described above.

Lastly, call the “CheckAnswer” method. You may either terminate the program at this point (if the user types “quit”) or allow for an infinite series of trivia games.

Example:

Would you like to use a default question (yes or no)? “no”

Please enter a test question: “What is the value of x in 56 / x = 14?”

Please enter the answer to that question: “4”

Your question was: “What is your favorite color?” and your answer was: “Blue”

Please enter your answer to the test question: “4”

Congratulations! You were correct.

Example using Default Question and Answer and with an Incorrect Answer:

Would you like to use a default question (yes or no)? “yes”

Please enter a test question: “”

Please enter the answer to that question: “”

Your question was: “Find the value of x in 4 = x ^ 2” and your answer was: “2”

Please enter your answer to the test question: “16”

I’m sorry, you were incorrect.

Answer 1

import java.io.*;
import java.util.*;

class MathTest {
String question;
String answer;
  
public MathTest(){
this.question = "Find the value of x in 4 = x ^ 2";
this.answer = "2";
}
  
public MathTest(String ques,String ans){
this.question=ques;
this.answer=ans;
}
  
public String getQuestion(){
return this.question;
}
  
public void setQuestion(String ques){
this.question = ques;
}
  
public String getAnswer(){
return this.answer;
}
  
public void setAnswer(String ans){
this.answer = ans;
}
  
public String ToString(){
return "Your question was: "+getQuestion()+"and your answer was: "+getAnswer();
}
  
public void CheckAnswer(String ans){
if(ans.equals(getAnswer()))
System.out.println("Congratulations! You were correct.");
else
System.out.println("I'm sorry, you were incorrect.");
}
  
   public static void main (String[] args) {
       Scanner sc = new Scanner(System.in);
       String option2;
       MathTest m;
       do{
       String option1,question,answer,finalanswer;
       System.out.println("Would you like to use a default question (yes or no)?");
       option1 = sc.nextLine();
       if(option1.equals("yes"))
       m = new MathTest();
       else
       {
       System.out.print("Please enter a test question: ");
       question = sc.nextLine();
       System.out.print("Please enter the answer to that question:");
       answer = sc.nextLine();
       m = new MathTest(question,answer);
       }
       m.ToString();
       System.out.print("Please enter your answer to the test question: ");
       finalanswer = sc.nextLine();
       m.CheckAnswer(finalanswer);
       System.out.print("Enter 'quit' to exit: ");
       option2=sc.nextLine();
       }while(!option2.equals("quit"));
   }
}

Output: