Is Cola Education Legitimate? Do You Really Understand HashMap?

But how many developers understand how HashMap works internally? A few days ago, I read a lot of the source code for ...
Houston Chronicle

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. You use this library to generate a random number and insert the number into ...
InfoWorld

Sorting Java objects with Comparable and Comparator

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. Programmers frequently need to ...
TheServerSide

Java array size, length and loop examples

Community driven content discussing all aspects of software development from DevOps to design patterns. Here are the most important concepts developers must know when they size Java arrays and deal ...