Overview In this post, we are going to learn about Deque in Java (pronounced deck) and its implementation. It may surprise you to see LinkedList is a queue. LinkedList is a queue and also a list. That means it has all the characteristics of a List and also a Deque. What is a Deque in … Read more
An overview of the queue interface in java
There are times when you need to build docker images inside Jenkins. Well, actually that is a common practice nowadays. However, without setting up the docker client properly, you might now be able to do so. When running Jenkins without docker client, you may encounter errors like this: This post’s only purpose is to help … Read more
In this tutorial, I’m going to create a simple WebSocket server with Java EE that I can use Javascript Websocket API to connect and send/receive messages. I’m going to use Eclipse as the IDE. You can try with another IDE/text editor. However, I would recommend you use Eclipse since I didn’t have much luck with … Read more
In this tutorial, I’m going to show you how to set up Apache Tomcat as a target runtime for Eclipse so you can deploy your web application right from Eclipse. Let’s get started! Download Apache Tomcat There are various Apache Tomcat versions available. The latest version is 10. I’m going to set up version 10 … Read more
Selection sort is one of the simple sorting algorithms. Its time complexity is O(n2). Selection sort fundamental Two nested loops Involves swapping At the end of each iteration, the lowest element is at the right position Selection sort steps As mentioned above, there are two loops in this algorithm. Essentially, the steps as below: Let’s … Read more