Nested classes are classes that are declared as members of other classes or scopes. Nesting classes is one way to better organize your code. For example, say you have a non-nested class (also known as ...

Variables are the bread and butter of coding. Without variables, apps would have no interactivity and no way of manipulating information. Therefore, learning about variables in Java should be among ...

In this tip, I'd like to show a simple technique that allows switching between multiple versions of the code at runtime. Often, when I'm testing a new solution, I'd like to run an old version and make ...