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Java

Learn Java. Build clear programs.

Follow school marks, class lists and student records from your first program to objects and reliable error handling.

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Foundations

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Examples use a Java 17 teaching baseline. Reference APIs may have separate dependencies or version requirements.

Mallikarjuna Mallisetty, author
About the author

Mallikarjuna Mallisetty

General programming

Mallikarjuna shares practical programming tutorials and foundational concepts designed to help developers learn by building and experimenting.

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Your learning path

All lessons

59 lessons470 examples73 quiz questions

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Estimated time includes reading, exploring code and answering quizzes. Learn at your own pace.

Getting Started

7 lessons · 89 min
  1. Introduction2code examples1quiz questions8minutes estimated learning time
  2. Install2code examples1quiz questions6minutes estimated learning time
  3. Install On Linux17code examples1quiz questions22minutes estimated learning time
  4. Install On Windows 106code examples1quiz questions11minutes estimated learning time
  5. Install On Windows 118code examples1quiz questions13minutes estimated learning time
  6. Install On Macos13code examples1quiz questions18minutes estimated learning time
  7. Hello World6code examples1quiz questions11minutes estimated learning time

Java Basics

7 lessons · 103 min
  1. Comments7code examples1quiz questions12minutes estimated learning time
  2. Variables12code examples2quiz questions19minutes estimated learning time
  3. Literals8code examples1quiz questions13minutes estimated learning time
  4. Data Types10code examples2quiz questions18minutes estimated learning time
  5. Operators8code examples1quiz questions14minutes estimated learning time
  6. Operator Precedence7code examples2quiz questions14minutes estimated learning time
  7. Basic Input Output8code examples1quiz questions13minutes estimated learning time

Java Conditional Statements

6 lessons · 82 min
  1. Conditional Statements8code examples1quiz questions13minutes estimated learning time
  2. If6code examples2quiz questions14minutes estimated learning time
  3. If Else7code examples1quiz questions12minutes estimated learning time
  4. If Else If6code examples1quiz questions12minutes estimated learning time
  5. Switch11code examples1quiz questions18minutes estimated learning time
  6. Ternary Operator7code examples1quiz questions13minutes estimated learning time

Java Loops

7 lessons · 99 min
  1. Loops9code examples1quiz questions16minutes estimated learning time
  2. For Loop10code examples1quiz questions17minutes estimated learning time
  3. For Each Loop8code examples2quiz questions15minutes estimated learning time
  4. While Loop8code examples1quiz questions13minutes estimated learning time
  5. Do While Loop6code examples2quiz questions13minutes estimated learning time
  6. Break9code examples1quiz questions14minutes estimated learning time
  7. Continue6code examples1quiz questions11minutes estimated learning time

Java OOP Concepts

23 lessons · 312 min
  1. Oop Introduction8code examples1quiz questions14minutes estimated learning time
  2. Class7code examples1quiz questions14minutes estimated learning time
  3. Class Constructor7code examples2quiz questions13minutes estimated learning time
  4. Objects6code examples2quiz questions13minutes estimated learning time
  5. Access Modifiers11code examples1quiz questions16minutes estimated learning time
  6. Static Variables In Class9code examples1quiz questions14minutes estimated learning time
  7. Static Methods In Class10code examples1quiz questions15minutes estimated learning time
  8. Static Blocks In Class12code examples1quiz questions18minutes estimated learning time
  9. Final Variables8code examples2quiz questions14minutes estimated learning time
  10. Final Methods6code examples1quiz questions11minutes estimated learning time
  11. Final Class6code examples1quiz questions11minutes estimated learning time
  12. Inheritance7code examples1quiz questions12minutes estimated learning time
  13. Method Overriding7code examples2quiz questions14minutes estimated learning time
  14. Abstraction8code examples1quiz questions13minutes estimated learning time
  15. Interface12code examples1quiz questions18minutes estimated learning time
  16. Polymorphism4code examples1quiz questions9minutes estimated learning time
  17. Encapsulation5code examples1quiz questions10minutes estimated learning time
  18. Nested Classes6code examples1quiz questions11minutes estimated learning time
  19. Nested Static Class10code examples1quiz questions16minutes estimated learning time
  20. Anonymous Class8code examples1quiz questions13minutes estimated learning time
  21. Singleton Class10code examples1quiz questions15minutes estimated learning time
  22. Enum8code examples1quiz questions13minutes estimated learning time
  23. Reflection10code examples1quiz questions15minutes estimated learning time

Java Exceptions and Their Handling

6 lessons · 80 min
  1. Exceptions10code examples1quiz questions15minutes estimated learning time
  2. Try Catch8code examples2quiz questions14minutes estimated learning time
  3. Catch Multiple Exceptions7code examples1quiz questions12minutes estimated learning time
  4. Try With Resources8code examples2quiz questions14minutes estimated learning time
  5. Throw Keyword5code examples2quiz questions11minutes estimated learning time
  6. Throws Keyword9code examples1quiz questions14minutes estimated learning time

Java Advanced Concepts

3 lessons · 40 min
  1. Annotations8code examples1quiz questions13minutes estimated learning time
  2. Logging8code examples1quiz questions13minutes estimated learning time
  3. Assertions7code examples2quiz questions14minutes estimated learning time
Java Reference LibraryLook up individual built-in functions and string methods.