A Guide to TreeMap in Java
1. Overview In this article, we are going to explore TreeMap implementation of Map interface from Java Collections Framework(JCF). TreeMap is a map implementation that keeps its entries sorted according […]
Guide
A Guide to Java HashMap
1. Overview In this article, we’ll see how to use HashMap in Java, and we’ll look at how it works internally. A class very similar to HashMap is Hashtable. Please […]
A Guide to HashSet in Java
1. Overview In this article, we’ll dive into HashSet. It’s one of the most popular Set implementations as well as an integral part of the Java Collections Framework. 2. […]
A Guide to TreeSet in Java
1. Overview In this article, we’ll have a look at an integral part of the Java Collections Framework and one of the most popular Set implementations – the TreeSet. […]
Guide to CopyOnWriteArrayList
1. Overview In this quick article, we’ll be looking at the CopyOnWriteArrayList from the java.util.concurrent package. This is a very useful construct in the multi-threaded programs – when we […]
Guide to the Java ArrayList
1. Overview In this article, we’re going to take a look at ArrayList class from the Java Collections Framework. We’ll discuss its properties, common use cases, as […]
A Guide to the Java LinkedList
1. Introduction LinkedList is a doubly-linked list implementation of the List and Deque interfaces. It implements all optional list operations and permits all elements (including null). 2. Features Below you can […]
Guide to ThreadLocalRandom in Java
1. Overview Generating random values is a very common task. This is why Java provides the java.util.Random class. However, this class doesn’t perform well in a multi-threaded […]
Guide To CompletableFuture
1. Introduction This tutorial is a guide to the functionality and use cases of the CompletableFuture class that was introduced as a Java 8 Concurrency API improvement. […]
Guide to java.util.concurrent.Locks
1. Overview Simply put, a lock is a more flexible and sophisticated thread synchronization mechanism than the standard synchronized block. The Lock interface has been around since Java 1.5. […]
Guide to CountDownLatch in Java
1. Introduction In this article, we’ll give a guide to the CountDownLatch class and demonstrate how it can be used in a few practical examples. Essentially, by […]
Guide to the Fork/Join Framework in Java
1. Overview The fork/join framework was presented in Java 7. It provides tools to help speed up parallel processing by attempting to use all available […]
A Guide to the Java ExecutorService
1. Overview ExecutorService is a JDK API that simplifies running tasks in asynchronous mode. Generally speaking, ExecutorService automatically provides a pool of threads and an API for assigning […]
Guide to java.util.concurrent.Future
1. Overview In this article, we are going to learn about Future. An interface that’s been around since Java 1.5 and can be quite useful when […]
Guide to the Volatile Keyword in Java
1. Overview In the absence of necessary synchronizations, the compiler, runtime, or processors may apply all sorts of optimizations. Even though these optimizations are beneficial […]
Guide to the Synchronized Keyword in Java
1. Overview This quick article will be an intro to using the synchronized block in Java. Simply put, in a multi-threaded environment, a race condition occurs when two or […]
Guide to UUID in Java
1. Overview UUID (Universally Unique Identifier), also known as GUID (Globally Unique Identifier) represents a 128-bit long value that is unique for all practical purposes. The standard representation […]
A Guide to the finalize Method in Java
1. Overview In this tutorial, we’ll focus on a core aspect of the Java language – the finalize method provided by the root Object class. Simply put, this is […]
Guide to the Volatile Keyword in Java
1. Overview In the absence of necessary synchronizations, the compiler, runtime, or processors may apply all sorts of optimizations. Even though these optimizations are beneficial […]
A Guide to Java 9 Modularity
1. Overview Java 9 introduces a new level of abstraction above packages, formally known as the Java Platform Module System (JPMS), or “Modules” for short. […]
