Generic Constructors in Java
1. Overview We previously discussed the basics of Java Generics. In this tutorial, we’ll have a look at Generic Constructors in Java. A generic constructor is […]
Java
Java equals() and hashCode() Contracts
1. Overview In this tutorial, we’ll introduce two methods that closely belong together: equals() and hashCode(). We’ll focus on their relationship with each other, how to correctly override […]
Understanding Memory Leaks in Java
1. Introduction One of the core benefits of Java is the automated memory management with the help of the built-in Garbage Collector (or GC for short). The […]
How to Replace Many if Statements in Java
1. Overview Decision constructs are a vital part of any programming language. But we land up in coding a huge number of nested if statements […]
Hashing a Password in Java
1. Overview In this tutorial, we’ll be discussing the importance of password hashing. We’ll take a quick look at what it is, why it’s important, […]
Setting the Java Version in Maven
1. Overview In this quick tutorial, we’ll show how to set the Java version in Maven. Before moving on, we can check the default JDK version of […]
Guide to Java Instrumentation
1. Introduction In this tutorial, we’re going to talk about Java Instrumentation API. It provides the ability to add byte-code to existing compiled Java classes. We’ll also […]
Practical Java Examples of the Big O Notation
1. Overview In this tutorial, we’ll talk about what Big O Notation means. We’ll go through a few examples to investigate its effect on the running […]
Sending Emails with Java
1. Overview In this quick tutorial, we’re going to look at sending an email with and without attachments – using the core Java mail library. 2. […]
Weak References in Java
1. Overview In this article, we’ll have a look at the concept of a weak reference – in the Java language. We’re going to explain […]
Dynamic Proxies in Java
1. Introduction This article is about Java’s dynamic proxies – which is one of the primary proxy mechanisms available to us in the language. Simply put, proxies […]
Introduction to Java Serialization
1. Introduction Serialization is the conversion of the state of an object into a byte stream; deserialization does the opposite. Stated differently, serialization is the […]
Guide to Escaping Characters in Java RegExps
1. Overview The regular expressions API in Java, java.util.regex is widely used for pattern matching. To discover more, you can follow this article. In this article, we will […]
A Guide To UDP In Java
1. Overview In this article, we will be exploring networking communication with Java, over the User Datagram Protocol (UDP). UDP is a communication protocol that transmits […]
Convert Hex to ASCII in Java
1. Overview In this quick article, we’re going to do some simple conversions between the Hex and ASCII formats. In a typical use case, the […]
Working with Network Interfaces in Java
1. Overview In this article, we’ll focus on network interfaces and how to access them programmatically in Java. Simply put, a network interface is the point […]
The Basics of Java Security
1. Overview In this tutorial, we’ll go through the basics of security on the Java platform. We’ll also focus on what’s available to us for […]
Composition, Aggregation, and Association in Java
1. Introduction Objects have relationships between them, both in real life and in programming. Sometimes it’s difficult to understand or implement these relationships. In this […]
Introduction to the Java NIO Selector
1. Overview In this article, we’ll explore the introductory parts of Java NIO’s Selector component. A selector provides a mechanism for monitoring one or more NIO channels […]
A Guide to WatchService in Java NIO2
1. Overview In this article, we are going to explore the WatchService interface of Java NIO.2 filesystem APIs. This is one of the lesser known features of […]
