This post is to record the progress of learning Android Development
Specialization offered by Coursera.
At the heart of data abstraction is encapsulation.
- An inner nested class can reference non-static instance methods
- A static nested class cannot reference non-static instance methods
- Any code can report an exception via “throw”.
- Methods declaring checked exceptions require callers to
provide an exception handler.
- The virtual machine searches up the runtime call stack to find