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....
Read Tutorial →Understanding JVM, JRE, and JDK
Explains three core components of Java execution environment....
Read Tutorial →Java Variables and Data Types
Variables, primitive data types, reference types, and type casting....
Read Tutorial →Java Operators Explained
Complete explanation of arithmetic, logical, and relational operators....
Read Tutorial →Understanding Classes and Objects
Foundation of object-oriented programming with Java....
Read Tutorial →Encapsulation and Data Hiding
Explains private fields, getters, setters, and access control....
Read Tutorial →Exception Handling in Depth
Try-catch, finally, throw, throws, and custom exceptions explained....
Read Tutorial →File Handling in Java
Working with streams, FileInputStream, and FileOutputStream....
Read Tutorial →Java Serialization and Deserialization
Explains object persistence using Serializable interface....
Read Tutorial →Java Collections Framework Basics
Lists, Sets, Maps, and iterators explained with examples....
Read Tutorial →Understanding ArrayList and LinkedList
Comparison, performance differences, and use cases....
Read Tutorial →Java HashMap and TreeMap Explained
Key-value storage, hashing, and tree-based maps....
Read Tutorial →Java TreeSet and HashSet Deep Dive
Explains Set implementations, ordering, and performance....
Read Tutorial →Working with Java Queues and PriorityQueue
FIFO operations, priority-based queues, and internal mechanics....
Read Tutorial →Working with Java Lambda and Method References
Simplifies lambda expressions using existing method names....
Read Tutorial →Java Inner and Nested Classes Explained
Member inner classes, static nested classes, and anonymous classes....
Read Tutorial →Understanding Java Anonymous Classes
Inline class creation used in GUI and callback systems....
Read Tutorial →Working with Java Date and Time API
Modern date/time handling using java.time package....
Read Tutorial →Understanding Java Annotations
Metadata used for frameworks, compilers, and runtime processing....
Read Tutorial →Reflection API in Java
Dynamically inspect and manipulate classes, fields, and methods....
Read Tutorial →Java Networking Basics
InetAddress, ports, sockets, and simple client-server communication....
Read Tutorial →URL and HttpURLConnection in Java
How to send GET and POST requests without external libraries....
Read Tutorial →Building GUI with Java Swing
Swing components, layouts, event handling, and UI design....
Read Tutorial →Advanced Layout Managers in Swing
GridBagLayout, BoxLayout, and advanced GUI design....
Read Tutorial →Executing SQL Queries with JDBC
PreparedStatement, batch execution, and ResultSet processing....
Read Tutorial →JDBC Transactions and Connection Pooling
Transaction management, commit/rollback, and optimized connections....
Read Tutorial →Java Memory Management and Garbage Collection
Heap, stack, GC algorithms, and memory optimization....
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