Question

I have a class called Ball, and i want to call a method called update in a class called MagicBallImage. Below is the method isVisible() in the Ball class, from which I am trying to call the method update, but I am getting an error saying:

Ball.java:58: non-static method update() cannot be referenced from a static context. 
MagicBallImage.update();

Ball Class

public boolean isVisible()
{
  if (magicBallState != 1)
  {
    return true;
    MagicBallImage.update();
  }
}

Anyone know how to solve this?

Answer 1

It’s telling you that you’re trying to call a non-static method without a class instance. You either need an instance of MagicBallImage to call the method on, or you need to convert the method to static.