All Tutorials

Singleton Pattern in Java: Ensure a Single Instance Across Your App

Learn the Singleton Pattern in Java with real-world examples, code walkthroughs, best practices, anti-patterns, and modern implementation strategies

JavaGlobal AccessLazy InitializationJava 21Singleton PatternDesign PatternsThread SafetyCreational PatternsJava 8

Mastering Java Assertions: Syntax, Usage, and When to Enable Them

Learn Java assertions with syntax, usage, best practices, and when to enable them. Includes real-world examples, interview questions, and performance insights.

Assert KeywordJava Interview QuestionsJava SyntaxJava AssertionsRuntime ChecksJava Best PracticesJava DebuggingAssertion UsageJava TutorialCore Java

Java Packages and Import – How to Create and Use Packages Effectively

Learn everything about Java packages, how to create them, import classes, and organize code effectively. Includes syntax, examples, and best practices

Java PackagesJava ImportCreating PackagesOrganize Java CodeJava NamespaceJava TutorialCore JavaJava ExamplesPackage Best PracticesUsing Packages

Constructors and Constructor Overloading in Java: Default and Parameterized Constructors Explained

Learn Java constructors, default and parameterized constructors, and constructor overloading with syntax, examples, best practices, and interview questions.

Object InitializationJava Interview QuestionsDefault ConstructorParameterized ConstructorJava ConstructorsBest PracticesConstructor OverloadingJava TutorialCore JavaJava Oop

Classes and Objects in Java: Syntax, Fields, Methods, and Constructors Explained

Learn classes and objects in Java with syntax, fields, methods, and constructors. Includes real-world examples, best practices, and interview questions.

Java ObjectsJava Interview QuestionsObject Oriented ProgrammingOop In JavaMethods In JavaConstructors In JavaJava ClassesJava TutorialCore JavaFields In Java

this Keyword in Java: Referring to Current Object and Constructor Chaining

Learn the this keyword in Java for referring to the current object and implementing constructor chaining with syntax, examples, best practices, and interview questions.

Method CallingJava Interview QuestionsJava This KeywordConstructor ChainingCurrent Object In JavaJava Best PracticesObject ReferenceJava TutorialCore JavaJava Oop

Static Keyword in Java: Variables, Methods, Blocks, and Their Lifecycle Explained

Learn the static keyword in Java with variables, methods, and blocks. Understand their lifecycle, use cases, best practices, and interview questions with examples.

Static MethodsMemory ManagementJava Static KeywordJava Interview QuestionsJava Best PracticesStatic VariablesClass Level MembersJava TutorialCore JavaStatic Blocks

Access Modifiers in Java: public, private, protected, and default Explained

Learn Java access modifiers - public, private, protected, and default. Understand their usage, scope, best practices, and interview questions with examples

Java SecurityCode Access ControlJava Interview QuestionsOop ConceptsJava Best PracticesPublic Private Protected DefaultJava TutorialEncapsulation In JavaCore JavaJava Access Modifiers

Inheritance in Java: extends Keyword and Method Overriding Explained with Examples

Learn inheritance in Java with extends keyword and method overriding. Understand syntax, use cases, best practices, and interview questions with real-world examples.

Java Interview QuestionsOop ConceptsSuperclass SubclassExtends KeywordMethod OverridingPolymorphismJava InheritanceJava TutorialCore JavaCode Reuse

Encapsulation in Java: Getters, Setters, and Data Hiding Explained

Learn encapsulation in Java with getters, setters, and data hiding. Understand syntax, best practices, real-world examples, and interview questions with code.

Data HidingJava Interview QuestionsJava EncapsulationEncapsulation ExampleOop ConceptsJava Best PracticesAccess ControlGetters SettersJava TutorialCore Java