How to call a method from a nested class, Java?

java, nested-class

Solution

You need to create an instance of the `InnerClass`, in the same way as any other instance method needs an instance on which to call it:

class Name {
   void methodOne() {
     class InnerClass {
       void methodTwo() {
       }
     }

     InnerClass x = new InnerClass();
     x.methodTwo();
   }
}

It's worth being careful before doing this - I don't think I've ever seen a named class declared within a method in the production code I've been associated with. Normally I'd either use an anonymous inner class for something really short, or a private static named class for anything longer, to avoid making the method too long.

Problem

Original source