It compiled and it is still wrong

I wrote a method and nothing happens

This page is part of Intro to Java with Greenfoot. It assumes you have reached lesson 3.2. Opening it is not counted against you and is not tracked as progress.

What it actually means

Writing a method defines it. Something still has to call it by name, and nothing does.

The usual causes

Ranked by how often each one turns out to be the answer. Work down the list.

1. Nothing calls the method. act() or the constructor has to invoke it.
2. The call is missing its parentheses, so it is not a call at all.
3. The method was accidentally written inside another method, so it never became a method.