Sometimes there is a need to initialize Spring bean after construction. Basically there are two ways to do that, which we will cover here.
Initialize Spring bean after construction
Palindrome detector in Java
Palindrome is a sequence of chars which reads the same backward and forward. Detecting palindrome is a common job interview task therefore we’ll show how to implement that.
Shuffle Algorithm in Java
Shuffling of arrays/lists sounds like a trivial task, but in reality it’s full of subtle traps. Here we show how to implement Fisher-Yates Shuffle Algorithm in Java.
MD5 hash in Java
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.
MongoDB join collections
For long time MongoDB didn’t have any means to join collections, but since version 3.2 there is a way to do simple left outer join of two collections.
MongoDB JSON to Document/DBObject
MongoDB integrates with JSON very well, but how to convert JSON to Document/DBObject using MongoDB API? In this post we show two solutions.
How to generate random test data in MongoDB
A common problem when starting with MongoDB is how to generate random test data in MongoDB. A large data set is especially needed for MongoDB performance tuning.
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!
MongoDB import/export data
MongoDB import/export data can be performed using many different tools. In this post we show how to use them to move MongoDB data around!
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.
