To find the size or length of a Java array, follow these four steps Declare a variable of type array. Initialize the Java array to a non-null value. Use the length property of the array to get its ...

Part 1 reveals the covariant and contravariant relationships between simpler elements such as array types and generic types, as well as the special Java language element, the wildcard. Part 2 ...

For example, say you have a non-nested class (also known as a top-level class) that stores objects in a resizable array ... and the three types of inner classes in your Java programs.

But Java 9 isn't that far off. Both versions are likely to change how the language works in pretty profound ways, with the introduction of immutable types, be it as value types or structured arrays, ...