To find the size of a Java array, query an array’s length property. The Java array size is set permanently when the array is initialized. The size or length count of an array in Java includes both ...

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

Do you need to know how to sort Java objects in a collection, array, or map? Here's how to use the Comparable and Comparator interfaces and avoid ClassCastExceptions.

How to Assign Random Numbers to an Array in Java. Java has a "Random" class that lets you generate a random number you use to implement calculations in your Java source code.

This post explains how to use loops in Java. Learn for loops, while loops, do while, break, and continue. All without going loopy!

In this Java tutorial, you’ve learned how to use class field initializers and class initialization blocks to initialize classes, and how to use constructors, object field initializers, and ...