Compiling and Running Modular Programs with javac and java: A Complete Guide
Learn how to compile and run Java modular programs with javac and java. Step-by-step guide, real examples, pitfalls, best practices, and JPMS evolution
Tutorials under 'Java'
Practical, example-driven posts focused on Java, Spring Boot, backend design, and performance.
Java Interview Questions – Streams, Concurrency, Spring, JPA, Annotations
Java interview questions covering Streams, concurrency, Spring annotations, JPA, and Optional. Includes code examples, Singleton pattern, and validation techniques.
Java 17 and Design Patterns Interview Questions (LTS Edition)
Top Java 17 and design patterns interview questions with code examples. Covers Singleton, Streams, creational patterns, and new Java 17 features like sealed classes
Java and Microservices Interview Questions and Answers (Top 25+)
Master Java and microservices interviews with these 25+ top questions and expert answers. Covers architecture, OAuth, messaging, threads, Spring Boot, and REST.
Java Backend Developer Interview Questions and Answers
Prepare for Java backend developer interviews with these top 20 questions and expert answers. Covers Spring Boot, JPA, Docker, SQL, AWS, and Java best practices.
Java and Spring Boot Interview Questions and Answers (Top 60+)
Ace Java and Spring Boot interviews with these 60+ expert Q&As. Covers core Java, Streams, Lambda, JPA, REST APIs, OAuth, Git, SQL, and microservices patterns.
Service Mesh Pattern in Java – Secure, Observable, and Reliable Microservices Communication
Learn how to implement the Service Mesh Pattern in Java for secure, reliable, and observable microservices communication using tools like Istio and Linkerd
Java Keywords List: Complete Guide to Reserved Words
Explore the full list of Java keywords, their purpose, and rules. Understand why reserved words cannot be used as variable names and how the compiler interprets them.
Java Literals Explained – Integer, Floating-Point, Boolean, Char, and String
Learn about Java literals including integer, floating-point, boolean, char, and string. Includes examples, use-cases, and best practices for writing clean code.
Java Labels – Understanding Labeled Loops and Their Usage
Learn Java labels and labeled loops with examples. Understand how to use labels with break and continue, common mistakes, and best practices
Break, Continue, and Return in Java – Flow Control and Use-Cases
Learn how break, continue, and return statements control Java program flow with detailed examples, use-cases, performance tips, and interview questions
Loops in Java – for, while, do-while, and Enhanced for-loop
Learn Java loops including for, while, do-while, and enhanced for-loop with syntax, examples, performance tips, and interview questions.
Decision Making in Java – if, else-if, switch, and Nested Conditions
Learn Java decision-making statements like if, else-if, switch, and nested conditions with examples, best practices, and interview questions.
Java Expressions and Statements – Understanding the Difference and Evaluation Order
Learn the difference between Java expressions and statements, evaluation order, use-cases, code examples, and interview relevance with best practices.
Java Operators (Extended) – Bitwise, Logical, Ternary, and Assignment Operators in Detail
Learn Java bitwise, logical, ternary, and assignment operators in detail with examples, use-cases, performance insights, and interview questions.
Java Type Casting and Type Conversion – Widening vs Narrowing Conversion
Learn Java type casting and type conversion with detailed examples. Understand widening and narrowing conversions, use-cases, common mistakes, and interview questions
Java Comments and Documentation: Writing Clean, Maintainable Code
Learn how to use single-line, multi-line, and Javadoc comments in Java. Best practices for clean code and generating documentation.
Top 60 Java Interview Questions and Answers for Freshers and Experienced Developers
Comprehensive Java interview guide covering 60 frequently asked questions with detailed answers on JVM, Java syntax, memory management, exception handling, and more.
final vs finally vs finalize in Java: Key Differences Explained
Learn the exact differences between final, finally, and finalize in Java—including keyword usage, exception-handling behavior, and garbage-collection hooks—with clear code examples.
Local vs Instance vs Static Variables in Java: Differences and Use-Cases
Explore the differences between local, instance, and static variables in Java. Learn how and where they are declared, initialized, accessed, and when to use each type.