Last Updated on October 19, 2024 by jt In Java, the HashMap and HashTable are both data structures that store data in key value pairs. When you store data in these, the key value is hashed, then is used as an index for fast access to the stored data. HashMap vs Hashtable HashMap Hashtable Introduced […]Continue reading
Last Updated on June 11, 2019 by Simanta I’ve previously posted about defining Consumer Driven Contracts using the OpenAPI specification and Spring Cloud Contract. This approach works well because you can tie your contracts to your API specification, and also wire in a request validator into your contract tests. But one problem that remained is […]Continue reading
Last Updated on October 22, 2024 by jt Sorting collections in Java is a common task. Java provides several different ways we can sort Collections. In this article, we will discuss the options we have to sort collections in Java. Understanding the java.util.Collections.sort() Method The java.util.Collections.sort() method is a crucial utility in the Java programming […]Continue reading
Last Updated on October 21, 2024 by jt Iteration is the most common operations done on a collection. For example, you may want to go through all the student grades to find who has the highest test scores. In Java we have four methods for iterating over a collection, the methods are the for loop, […]Continue reading
Last Updated on June 26, 2019 by Simanta Today I’m going to show you how can you can use Docker to run MySQL Server in your development environment. Using Docker to run MySQL is much easier than manually installing it and for when you have multiple instances of MySQL running at the same time. I’m […]Continue reading
Last Updated on October 21, 2024 by jt Problem You are given a string and are asked to write a method to return true if the string is a palindrome and to return false otherwise. A palindrome is a string that reads the same from front to back like alula They are many solutions to check […]Continue reading
Last Updated on October 21, 2024 by jt What Is SDKMAN? As Java developers, we have to work with different versions of Java from project to project. Installing different versions by hand and setting the PATH can become a real pain at times. SDKMAN is a command line tool that allows you to install different versions of […]Continue reading
