A comprehensive, well-organized collection of Java code—covering everything from Core and Advanced Java to Data Structures & Algorithms (DSA). Ideal for learners, educators, and developers aiming to deepen their Java expertise in one centralized place.
This repo brings together:
- Core Java – basics like OOP, collections, exception handling, I/O.
- Advanced Java – web and enterprise features such as Servlets, JSP, JDBC, XML, Hibernate, Spring.
- DSA – essential data structures and algorithm implementations to prepare for interviews and competitive challenges.
- Structured learning from the fundamentals to advanced concepts.
- Ready-to-use examples for quick experimentation and learning.
- Supports self-paced study, teaching, or technical interview prep.
| Area | Topics Covered |
|---|---|
| Core Java | OOP, Collections, Exception Handling, I/O |
| Advanced Java | Servlets, JSP, JDBC, XML parsing, Hibernate, Spring |
| DSA | Arrays, LinkedLists, Trees, Sort/Search |
- Java Development Kit (JDK) 11 or higher
- Apache Tomcat or similar (for web modules)
- MySQL or any SQL database (for JDBC/Hibernate examples)
- Maven or Gradle (for dependency and build management)
- IDE (IntelliJ IDEA, Eclipse, etc.)
- Navigate to an example directory.
- Compile:
javac ExampleName.java - Run:
java ExampleName
- Build with Maven or Gradle:
mvn clean installor equivalent. - Deploy WAR to your servlet container (e.g., move
.warto Tomcat’swebapps). - Access via:
http://localhost:8080/ModuleName
- Set database credentials in configuration files (e.g.,
hibernate.cfg.xml). - Build and run the application (using
Main.javaor IDE Run). - For Spring – use
Main.javaor embedded server run configurations.
A passionate about Java, software design, and open-source learning tools.