georgi dimitrov :
I am Beginner practicing java with bluej and trying to print the next element every time I use the getNext() method . I tried some options but they didn't work and now I am stuck . Here is my code:
public void getNextQuestion()
{
int counter = 0;
Iterator<Questions> it = this.questions.iterator();
while(it.hasNext())
{
counter = counter + 1;
Questions nextObject = it.next();
System.out.println(counter+ ". " + nextObject.getDescription());
}
}
Schred :
I am guessing you only want to print one question whenever getNextQuestion is called. In that case, you need to do this:
public class MyClass {
int counter = 0;
public void getNextQuestion()
{
Questions nextObject = questions.get(counter);
counter = counter + 1;
// If counter gets to the end of the list, start from the beginning.
if(counter >= questions.size())
counter = 0;
System.out.println(counter+ ". " + nextObject.getDescription());
}
}
As you can see, counter is now a global variable inside whaever class contains the method, and you don't need the iterator at all.
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