Java 9 Programming By Example

Arrays

Variables can be a primitive type according to their declaration, or they may hold a reference to an object. A special object type is an array. When a variable holds a reference to an array, then it can be indexed with the [ and ] characters, along with an integral value consisting of 0 or a positive value ranging to one less than the array's length, to access a certain element of the array. Multi-dimensional arrays are also supported by Java when an array has elements that are also arrays. Arrays are indexed from zero in Java. Under or over indexing is checked at runtime, and the result is an exception.

An exception is special condition that interrupts the normal execution flow and stops the execution of the code or jumps to the closest ...