Java generics is a powerful feature introduced in JDK 5.0 that was directed towards improving the quality of code through abstraction. It aims to improve code reusability by providing a mechanism to write classes and functions in such a way that types can be passed...
Tutorial with example code on how to parse Search Results from Google using JAVA and Jsoup....
The command design pattern is a behavioral design pattern. This pattern focuses on encapsulating all the data and related actions of an object. This design pattern allows separating the objects that produce the behavior and the objects that consume them....
First things First, Why should I really care about Lambdas?:...
The Java hashmap is a widely used data structure! Won't it be awesome if you knew how it actually works behind the scenes? ...
So what is a singleton? In a simpleton’s language, a singleton is a class that will be instantiated only once. This essentially means that there will be only one instance of the Java class in the Java Virtual Machine (JVM). The singleton was initially proposed...
The way JAVA data-structures is it is not always easy to sort HashMaps. So here is a piece of code I frequently use to sort HashMap of type String, Long in JAVA...
DynamoDbMapper is an amazing class to abstract out a lot of operations for AWS DynamoDb. But this library is not well documented. Here is an example of how to batchLoad objects using dynamoDBMapper in JAVA ...
What is the most common way to create an object of a class? Yeah, you probably guessed it right! By using a constructor. But is it always the best way? We’ll find out here! ...
Fastest was to upload a lot of documents to "ElasticSearch" using JAVA. Wit code examples and tutorials. ...