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 ...

For example, in a non-hierarchical file system ... import static java.lang.Math.cos; // Import the cos() static method only. Once you’ve imported them, you can specify static members without ...

The static keyword often confuses junior Java developers. A static variable is one that is not attached to an instance, and a static method is one that does not require an instance to be invoked.