Stuck on a Do While logical error

[dougie1809]

Hi,

The do while loop compiles fine, its just not ending the loop as I'd like it to. Here my code (Some are calling methods from other classes) :
Ask more more questions to find out more of the problem. Thanks.

String q = "";
		do
		{
			LayoutOfQuestions layQuestions = new LayoutOfQuestions();
			questions = layQuestions.getQuestionList();
			for(Question currQuestion: questions)
			{
				System.out.println("This is a "+currQuestion.getType()+" question.");
				System.out.println(currQuestion.getName());
				q = key2.nextLine();
				q1.increasePoints();
				//if(currQuestion.getAnswer().equalsIgnoreCase(q))
				if(q1.isCorrect(currQuestion, q))
				{
					System.out.println("Correct answer");
				}
				else
					System.out.println("Incorrect. The correct answer is "+currQuestion.getAnswer());
					System.out.println(currQuestion.getAnswerDescription());
			}
			System.out.println(q1.getPoints());
		}while(!q.equalsIgnoreCase("stop"));

[Gilvan Justino]

Before call q1.increasePoints(), shouldn´t you check the value of q? I mean, if it is "stop" will you still call q1.isCorrect?

[dougie1809]

Yes i know. Il change the statements around. Thanks. But not looking at how the code executes, when i do type in stop, it still keeps the loop executing?
Thanks again.

[Gilvan Justino]

You have 2 loops in your program. The first one you did with the command "do" and the second one you did with the command "for".
Even if you type "stop" when occurs "q = key2.nextLine();" the program still keeps running the "for loop" because there isn´t any instruction to get out this loop. There is only an instruction to get out the "do loop".

[Norm]

Print out the value of q aftere you read it in to see what the computer is looking at.
System.out.println("q=" + q + "<");

[dougie1809]

Well the for loop is inside the do while loop, so "stop" tells the compiler to finish by instructing the do while loop to stop which in turn should stop the for loop?

[Norm]

If you are in the for loop, how will the while() see the value of q if you are still in the for loop?

[dougie1809]

Ah i see the logic now. So the compiler is processing all the objects in the for loop and then it can "stop". So I need to figure out a way to tell the for loop also stop. Thanks guys.

[Tolls]

It's not the compiler.
It's the JVM.
The compiler simply creates the byte code (ie the class files).