Java Error: expected inside protected interface

Question

I am facing the following problem. I was trying to put together a simple tutorial on the strategy in Java when I ran into a problem. The compiler gives me an \"

Answer 1

The method name do is a Java keyword (Section 3.9, JLS) and can't be a method name. Change your method name to something not a keyword.

protected static interface Strategy{
    void doAction(int i);
}