Technical… Theoretical… Practical…
Java
This example will show you what is a pangram and how to check a string is a pangram in Java program. A string is a pangram if it contains all letters or characters of alphabets (a to z or A Continue reading
Introduction The ELK Stack is made of three open-source products: 1) Elasticsearch, 2) Logstash, and 3) Kibana. Elasticsearch: It is a NoSQL database which is based on the open-source search engine called Lucene. So Elasticsearch is a search and analytics Continue reading
Here in this tutorial I will tell you what are Dynamic Tests and @TestFactory in Junit 5 and how to create @TestFactory in Junit 5. Test cases, annotated with @Test, are static in the sense that they are fully specified Continue reading
Introduction Here in this tutorial I will show you an example on how to test private methods using Junit framework. I am using Junit 5 framework to test the private method. Using Mockito framework you won’t be able to test Continue reading
In this example I am going to tell you how to map composite primary key to entity class in your JPA Hibernate entity class. Composite primary key is a combination of two or more columns made together as a primary Continue reading
In this example I am going to show you how to find all paths from root to leaf nodes in binary tree. So I am going to find each path from root to leaf node using Java program. A binary Continue reading
Here I am going to show you how to find common, uncommon, unique elements in two Lists or ArrayLists using Java program. In this program I will show you how to find common, uncommon, unique string elements as well as Continue reading
Introduction In this tutorial I am going to show you how to create a custom immutable class in Java programming language. Immutable objects are those objects whose states cannot be changed. For example, you can change the state of an Continue reading
I am going to discuss here CompletableFuture vs Parallel Stream in Java programming language. CompletableFuture extends Future with added advantage to allow the tasks finish in an ad hoc manner. In Parallel Stream task is divided into sub-tasks and run Continue reading
Here in this tutorial I am going to tell you how to configure Persistence Unit for JPA (Java Persistence API). Here I am going to show you both XML and Java based configurations for persistence unit in JPA. This is Continue reading