JAVA

Java Tutorial

Write Once, Run Everywhere

📚 63+ Topics 📊 Beginner to Advanced 🆓 100% Free 🇮🇳 English + Hindi (Soon)

▶ Start from Beginning 📋 Table of Contents

📌 About This Tutorial Java OOP, collections, multithreading, JDBC, Spring Boot basics with real examples and projects. This course covers 63+ topics from basics to advanced — click any topic to open its tutorial page.

📋 Java Tutorial — Complete Table of Contents

1 Getting Started 6 topics

01 Introduction to Java 02 JDK, JRE & JVM Explained 03 Install Java & IntelliJ IDEA 04 First Java Program 05 Java Program Structure 06 How Java Compiles & Runs

2 Variables & Data Types 4 topics

01 Variables in Java 02 Primitive Data Types 03 Type Casting & Wrapper Classes 04 Constants — final keyword

3 Operators & Control Flow 4 topics

01 Java Operators 02 if, else, switch 03 for, foreach & while Loops 04 break & continue

4 Arrays & Strings 4 topics

01 Arrays in Java 02 Multidimensional Arrays 03 String Class & Methods 04 StringBuilder & StringBuffer

5 Methods 4 topics

01 Methods in Java 02 Method Overloading 03 Recursion 04 Variable Arguments — varargs

6 Object-Oriented Java 10 topics

01 OOP in Java — Overview 02 Classes & Objects 03 Constructors & this / super 04 Encapsulation — Getters & Setters 05 Inheritance 06 Polymorphism — Method Overriding 07 Abstract Classes 08 Interfaces 09 final & static Keywords 10 Inner & Anonymous Classes

7 Exception Handling 5 topics

01 Exceptions in Java 02 try-catch-finally 03 throw & throws 04 Custom Exceptions 05 try-with-resources

8 Collections Framework 7 topics

01 Collections — Introduction 02 ArrayList 03 LinkedList 04 Stack & Queue 05 HashMap & LinkedHashMap 06 HashSet & TreeSet 07 Comparable & Comparator

9 Functional Java — Java 8+ 5 topics

01 Lambda Expressions 02 Functional Interfaces 03 Stream API 04 Optional Class 05 Method References

10 File Handling 4 topics

01 Java I/O Streams 02 FileReader & FileWriter 03 BufferedReader & BufferedWriter 04 Serialization

11 Multithreading 4 topics

01 Threads in Java 02 Runnable & Thread Class 03 Synchronization 04 Executor Service

12 Advanced Topics 6 topics

01 JDBC — Java to MySQL 02 Annotations & Reflection 03 Design Patterns in Java 04 Java Modern Features (17/21) 05 Spring Boot Introduction 06 Java Projects for Beginners

📖 About Java

Java was developed by Sun Microsystems (now Oracle) in 1995 with the principle of "Write Once, Run Anywhere". Java is used in Android app development, enterprise software, banking systems, big data (Hadoop, Kafka), and Spring Boot backend development. Java is one of the most in-demand programming languages in the Indian job market.

Java Tutorial

📋 Java Tutorial — Complete Table of Contents

📖 About Java

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