go go polyglot.

The syntax for a generic method includes a type parameter, inside angle brackets, and appears before the method's return type.

The members of an array type are all of the following: + The public final field length, which contains the number of components of the array (length may be positive or zero). + The public method clone, which overrides the method of the same name in class Object and throws no checked exceptions. The return type of the clone method of an array type T[] is T[]. All the members inherited from class Object; the only method of Object that is not inherited is its clone method.

A variable of type Object can hold a reference to the null reference or to any object, whether it is an instance of a class or an array ... . All class and array types inherit the methods of class Object ...

"An object is a class instance or an array."

In the Java programming language, a multidimensional array is simply an array whose components are themselves arrays. This is unlike arrays in C or Fortran.

The number of indices needed to specify an element is called the dimension, dimensionality, or rank of the array.

A statement is a complete line of code that performs some action, while an expression is any section of the code that evaluates to a value. Expressions can be combined “horizontally” into larger expressions using operators, while statements can only be combined “vertically” by writing one after another, or with block constructs.

While loops, in general, are meant to have an indefinite number of iterations...and for loops should have a more definite number of iterations.

Every compiler warning belongs to a category. The Java Language Specification lists two categories: 'deprecation' and 'unchecked'."