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 Locale from Request
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!
Parallel Merge Sort in Java
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
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!
Java regex remove duplicated words
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.
Java regex matching IP Address
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 pattern
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
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!
Java 8 interfaces default and static methods
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.
Bean Validation Constraints
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!
