how to create a counter in a dr java program

Question

//Neel Patel
//Friday October 9th, 2009
/*This is a quiz program that will ask the user 10 questions. the user will answer
 * these questions and will be scored out of 10.*/

class Quiz
{
  public static void main (String args[])
  {
   //Instructions
System.out.println("instructions");
System.out.println(" ");
System.out.println("1. You wll be asked ten questions through out the quiz.");
System.out.println("2. The first question will appear, you will have to answer that question for the next question to appear.");
System.out.println("3. When you answer the last question you will be told your score.");
System.out.println(" ");

System.out.println("welcome to the basketball quiz.");

  // question 1
  System.out.println(" ");
  System.out.println("Question 1. ");
  System.out.println("How tall is a basketball hoop? ");
  System.out.println("Type in Answer here:");
  String Question1= In.getString();
  if (Question1.equalsIgnoreCase("10 Feet"))
  {

    System.out.println("Correct!");

  }
  else
  {
    System.out.println("you got this questions wrong");
  }

   // question 2
  System.out.println(" ");
  System.out.println("Question 2. ");
  System.out.println("Who invented basketball? ");
  System.out.println("Type in Answer here:");
  String Question2= In.getString();
  if (Question2.equalsIgnoreCase("James Naismith "))
  {


    System.out.println("Correct!");

  }
  else
  {
    System.out.println("you got this questions wrong");
  }

} }

this is my program that iam writing. I want to make a counter that will keep score of every question that is answered right and then display it to the user after the questions are finished. i tried using this..

int Score=0 

Score=Score+1

but it did not work for the 2nd question but works for the 3rd ... it gives me an error .. is there another way i can do this or am i dooing something wrong?

Answer 1

It looks like you are on the right track. You need to declare a socre variable at the begiunning of the program.

int score = 0;

Then in each question where you print out "correct" you can increment the score like this:

 score++;

At the end of the program after the last question you can print the score.

Maybe you should post the error you got when you tried it.

UPDATE: The syntax is score++ NOT score=++. That is, take out the = sign.

Answer 2

What you did is correct. Heed the comment on your post; you need semi-colons at the end of your posted solution. Also, per the Java Language Specification, it's best to name your variable with all lower case characters:

int score = 0;

// question code

score += 1;

or 

score = score + 1;

or 

score++;

You need to place the variable declaration (int score = 0;) outside of any loops (your if/else loops). It would be best to place it at the first line of the main method.