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Marker Interfaces in Java 1. Introduction In this quick tutorial, we’ll learn about marker interfaces in Java. 2. Marker Interfaces A marker interface is an interface that has no methods or constants inside it. It provides run-time type information about objects, so the compiler and JVM have additional information about the… Continue Reading java-marker-interfaces

How to Make a Deep Copy of an Object in Java 1. Introduction When we want to copy an object in Java, there’re two possibilities that we need to consider — a shallow copy and a deep copy. The shallow copy is the approach when we only copy field values… Continue Reading java-deep-copy

Overview of Java Built-in Annotations 1. Overview In this article, we’ll talk about a core feature of the Java language – the default annotations available in the JDK. 2. What an Annotation Is Simply put, annotations are Java types that are preceded by an “@” symbol. Java has had annotations… Continue Reading java-default-annotations

Control Structures in Java 1. Overview In the most basic sense, a program is a list of instructions. Control structures are programming blocks that can change the path we take through those instructions. In this tutorial, we’ll explore control structures in Java. There are three kinds of control structures: Conditional… Continue Reading java-control-structures

Changing Annotation Parameters At Runtime 1. Overview Annotations, a form of metadata which you can add to Java code. These annotations can be processed at compile time and embedded to class files or can be retained and accessed at runtime using Reflection. In this article, we will discuss how to… Continue Reading java-reflection-change-annotation-params

Comparing Dates in Java 1. Introduction In this tutorial, we’ll focus on how to compare dates using the Java 8 Date/Time API. We’ll dive into different methods to check whether two dates are equal and how to compare dates. 2. Comparing Dates The basic way to express a date in… Continue Reading java-comparing-dates

Guide to Character Encoding 1. Overview In this tutorial, we’ll discuss the basics of character encoding and how we handle it in Java. 2. Importance of Character Encoding We often have to deal with texts belonging to multiple languages with diverse writing scripts like Latin or Arabic. Every character in… Continue Reading java-char-encoding

Formatting with printf() in Java 1. Introduction In this tutorial, we’ll demonstrate different examples of formatting with the printf() method. The method is part of the java.io.PrintStream class and provides String formatting similar to the printf() function in C. 2. Syntax We can use one of the following PrintStream methods to format… Continue Reading java-printstream-printf

The Modulo Operator in Java 1. Overview In this short tutorial, we’re going to show what the modulo operator is, and how we can use it with Java for some common use cases. 2. The Modulo Operator Let’s start with the shortcomings of simple division in Java. If the operands… Continue Reading modulo-java