This post shows readers how to create an array in Java. Including: Array Lists, multidimensional arrays, maps, and more.

The java.util.Arrays class provides similar “deep” methods for performing equals and hashCode functionality on multi-dimensional arrays: Arrays.deepEquals and Arrays.deepHashCode.

This Java runtime exception happens when the wrong type of object is placed into an array. In the example below, a BigInteger array is created, followed by an attempt to add a Double. The Double does ...

Community driven content discussing all aspects of software development from DevOps to design patterns. To help demystify the most complicated of these, let’s look at a few different JOptionPane ...