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Java Primitive Conversions 1. Introduction Java is a typed language which means it utilizes the concept of types. There are two distinct type groups: primitive data types abstract data types. In this article, we will focus on conversions of primitive types. 2. Overview of Primitives The first thing we have… Continue Reading java-primitive-conversions

Java Interfaces 1. Overview In this tutorial, we’re going to talk about interfaces in Java. We’ll also see how Java uses them to implement polymorphism and multiple inheritances. 2. What Are Interfaces in Java? In Java, an interface is an abstract type that contains a collection of methods and constant variables.… Continue Reading java-interfaces

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 focus on escaping characters withing a regular expression and show how it can be done… Continue Reading java-regexp-escape-char

A Guide to Creating Objects in Java 1. Overview Simply put, before we can work with an object on the JVM, it has to be initialized. In the following sections, we’ll take a look at various ways we can initialize primitive types and objects. 2. Declaration vs. Initialization Let’s start… Continue Reading java-initialization

A Guide to the Java Math Class 1. Introduction In this tutorial, we’re going to describe the Math class that provides helpful static methods for performing numeric operations such as exponential, logarithm, etc. 2. Basic Math Functions The first set of methods we’ll cover are the basic math functions such… Continue Reading java-lang-math

Nested Classes in Java 1. Introduction This tutorial is a quick and to-the-point introduction to nested classes in the Java language. Simply put, Java allows us to define classes inside other classes. Nested classes enable us to logically group classes that are only used in one place, write more readable… Continue Reading java-nested-classes

Brief Introduction to Java Thread.yield() 1. Overview In this tutorial, we’ll explore the method yield() in Thread class. We’ll compare it with other concurrency idioms available in Java and eventually explore the practical applications of it. 2. Synopsis of yield() As the official documentation suggests, yield() provides a mechanism to… Continue Reading java-thread-yield

Introduction to Javadoc 1. Overview Good API documentation is one of the many factors contributing to the overall success of a software project. Fortunately, all modern versions of the JDK provide the Javadoc tool – for generating API documentation from comments present in the source code. Prerequisites: JDK 1.4 (JDK… Continue Reading javadoc

Wrapper Classes in Java 1. Overview As the name suggests, wrapper classes are objects encapsulating primitive Java types. Each Java primitive has a corresponding wrapper: boolean, byte, short, char, int, long, float, double  Boolean, Byte, Short, Character, Integer, Long, Float, Double These are all defined in the java.lang package, hence we… Continue Reading java-wrapper-classes