To calculate MD5 hash in Java we can use pure Java approach or use libraries. In this post we’re going to show how to calculate Message Digest in different ways.
Spring Framework is really great when it comes to i18n. It applies different strategies to get user’s locale from request. In this post we’ll show how apply that!
Divide and Conquer algorithms are great subject for parallelism. Here we present Parallel Merge Sort implemented using Java ForkJoin Framework.
Java 8 Comparators with Method References in action. We mix Java 8 static and default methods with method references to sort objects by multiple fields using chained Comparators!
Regular Expressions are very handy for text processing. In this article we’ll show Java Regex to remove duplicated words, which is a common task.
A pretty cool exercise in writing Java Regular Expressions is to write Java regex matching IP Address. In this post we’ll show IP regexp and use in IP Address validator.
Static Factory Method is very popular pattern that simplify and clarify creation of objects. Can be used instead of or in addition to constructors.
Java 8 Functional Interfaces is very important concept, because they are heavily used with Lambda Expressions and Streams to simplify code. Let’s take a deep dive!
In Java 8 interfaces default and static methods are major changes that allow to extend existing code without breaking anything. It should be the first step into Java 8.
javax.validation defines a number of Bean Validation Constraints for values of most commonly used types. In this post we’ll show how to use each of them!