This Legacy class has two inner classes. It it good practice to use inner classes ? I am planning to refactor into more reusable one. Because inner classes are tightly coupled. I am plainning to put general stuff in Base class(Parent class) and specific stuff in Derived class(Child class) for reuability of general stuffs. Is it right approach or any specific design
pattern ?
Public class A {
Class B {
// variable declarations
}
Class C extends Observer and implements ExceptionListener {
}
Class D extends Observer and implements MessageListener {
onMessage() {
}
}
// calls Class C and class D methods
}