Java Tutorials

Learn Java programming for web, mobile, and enterprise applications.

Introduction to Java

Overview of Java, its features, and why it became a global standard.

Understanding JVM, JRE, and JDK

Explains three core components of Java execution environment.

Java Variables and Data Types

Variables, primitive data types, reference types, and type casting.

Java Operators Explained

Complete explanation of arithmetic, logical, and relational operators.

Control Flow Statements in Java

Explains decision-making and looping structures.

Understanding Classes and Objects

Foundation of object-oriented programming with Java.

Constructors in Java

Explains default, parameterized, and copy constructors.

Inheritance in Java

Explains all forms of inheritance and real-world examples.

Polymorphism in Java

Method overloading and overriding with practical examples.

Encapsulation and Data Hiding

Explains private fields, getters, setters, and access control.

Working with Java Packages

Explains built-in and user-defined packages.

Java Interfaces

Explains interfaces, default methods, and multiple inheritance.

Exception Handling in Depth

Try-catch, finally, throw, throws, and custom exceptions explained.

Multithreading Fundamentals

Thread creation, lifecycle, and Runnable interface.

Thread Synchronization in Java

Explains synchronized blocks, methods, and locks.

File Handling in Java

Working with streams, FileInputStream, and FileOutputStream.

Java Serialization and Deserialization

Explains object persistence using Serializable interface.

Java Collections Framework Basics

Lists, Sets, Maps, and iterators explained with examples.

Understanding ArrayList and LinkedList

Comparison, performance differences, and use cases.

Java HashMap and TreeMap Explained

Key-value storage, hashing, and tree-based maps.

Java TreeSet and HashSet Deep Dive

Explains Set implementations, ordering, and performance.

Working with Java Queues and PriorityQueue

FIFO operations, priority-based queues, and internal mechanics.

Mastering Java Generics

Generics, type safety, bounded types, and wildcards.

Lambda Expressions in Java

Functional-style programming with concise syntax.

Java Stream API Overview

Streams, pipelines, filtering, mapping, and reduction.

Working with Java Lambda and Method References

Simplifies lambda expressions using existing method names.

Java Inner and Nested Classes Explained

Member inner classes, static nested classes, and anonymous classes.

Understanding Java Anonymous Classes

Inline class creation used in GUI and callback systems.

Java Enums and EnumSet

Strongly typed constants with advanced features.

Working with Java Date and Time API

Modern date/time handling using java.time package.

Understanding Java Annotations

Metadata used for frameworks, compilers, and runtime processing.

Reflection API in Java

Dynamically inspect and manipulate classes, fields, and methods.

Java Networking Basics

InetAddress, ports, sockets, and simple client-server communication.

URL and HttpURLConnection in Java

How to send GET and POST requests without external libraries.

Building GUI with Java Swing

Swing components, layouts, event handling, and UI design.

Advanced Layout Managers in Swing

GridBagLayout, BoxLayout, and advanced GUI design.

Java Applet Programming

Applet lifecycle and basic graphics operations.

Introduction to JDBC

JDBC architecture, drivers, and basic connectivity steps.

Executing SQL Queries with JDBC

PreparedStatement, batch execution, and ResultSet processing.

JDBC Transactions and Connection Pooling

Transaction management, commit/rollback, and optimized connections.

Java Memory Management and Garbage Collection

Heap, stack, GC algorithms, and memory optimization.

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