JAVA Roadmap | Tech Tutorials

01SectionJAVA Basic 1 subsections 20 articles

20/20 articles

1Beginner Interview Questions

2Intermediate Interview Questions

3Advanced Interview Questions

4Scenario-Based Interview Questions

5Introductions of Java

6Features of Java

7Java Ecosystem Subsection 3/3 articles

Subsection articles

3/3 articles

11Variables & Data Types

02SectionControl Flow 0 subsections 7 articles

7/7 articles

03SectionMethods 0 subsections 7 articles

7/7 articles

1Introduction to Methods

04SectionArray 0 subsections 7 articles

7/7 articles

1Introduction of array

6Arrays Utility Class

7Copying Arrays

05SectionStrings 0 subsections 8 articles

8/8 articles

1Introduction of string

2String Methods

3String Immutability

4StringBuilder in Java

5StringBuffer in Java

6String Formatting

7String Comparison

8Regular Expressions

06SectionPackages & Modules 0 subsections 5 articles

5/5 articles

1Packages in Java

2import Statement

3Static Import in Java

4Java Platform Module System

5module-info.java File

07SectionException Handling 0 subsections 10 articles

10/10 articles

1Introduction to Exception Handling

2try-catch Block in Java

3Multiple Catch Blocks

4finally Block in Java

5throw Keyword in Java

6throws Keyword in Java

7Checked and Unchecked Exceptions

8Custom Exceptions in Java

9try-with-resources in Java

10Exception Chaining in Java

08SectionCollections Framework 0 subsections 24 articles

09SectionGenerics 0 subsections 7 articles

7/7 articles

1Introduction to Generics

2Generic Classes in Java

3Generic Methods in Java

4Bounded Type Parameters

5Wildcards in Java Generics

6Type Erasure in Java

7Restrictions on Generics

10SectionLambda & Streams 0 subsections 9 articles

9/9 articles

1Lambda Expressions in Java

2Method References in Java

3Introduction to the Java Stream API

4Stream Operations in Java

5Intermediate Stream Operations

6Terminal Stream Operations

7Collectors in Java Streams

8Parallel Streams in Java

9Parallel Streams in Java

11SectionFile I/O 0 subsections 12 articles

12/12 articles

1Introduction to File I/O

2File Class in Java

3FileInputStream and FileOutputStream

4FileReader and FileWriter

5BufferedReader and BufferedWriter

6PrintWriter Class in Java

7Scanner Class in Java

8Object Serialization in Java

9Object Deserialization

10Java NIO Package

11Path and Files Classes

12File Channels in Java

12SectionMultithreading 0 subsections 23 articles

13SectionMemory Management 0 subsections 6 articles

6/6 articles

1Introduction to Memory Model

2Heap and Stack Memory

3Garbage Collection in Java

4Garbage Collection Algorithms

5Memory Leaks in Java

6Weak, Soft, and Phantom References

14SectionAnnotations 0 subsections 5 articles

5/5 articles

1Introduction to Annotations

2Built-in Annotations in Java

3Custom Annotations in Java

4Annotation Retention Policies

5Annotation Processing

15SectionReflection 0 subsections 6 articles

6/6 articles

1Introduction to Reflection

2Class Objects in Java

3Inspecting Classes Using Reflection

4Accessing Fields and Methods Using Reflection

5Creating Objects Dynamically Using Reflection

6Reflection Use Cases in Java

16SectionNetworking 0 subsections 8 articles

8/8 articles

1Introduction to Networking

2InetAddress Class in Java

7Datagram Sockets and UDP

8HTTP Client API in Java

17SectionJDBC 0 subsections 9 articles

9/9 articles

1Introduction to JDBC

2JDBC Drivers

3Connecting Java to a Database Using JDBC

4Statement Interface in JDBC

5PreparedStatement in JDBC

6CallableStatement in JDBC

7ResultSet in JDBC

8Transaction Management in JDBC

9Database Connection Pooling

18SectionModern Java Features 0 subsections 10 articles

10/10 articles

1var Keyword (Java 10)

2Text Blocks (Java 15)

3Switch Expressions (Java 14)

4Pattern Matching for instanceof (Java 16)

5Pattern Matching for switch (Java 21)

6Records (Java 16)

7Sealed Classes & Interfaces (Java 17)

8Unnamed Patterns (Java 22)

9Sequenced Collections (Java 21)

10String Templates (Java 21)

19SectionDate and Time API 0 subsections 8 articles

8/8 articles

1Introduction to Date and Time API

2LocalDate in Java

3LocalTime in Java

4LocalDateTime in Java

5ZonedDateTime in Java

6Instant in Java

7Duration and Period in Java

8DateTimeFormatter in Java

20SectionOO Programming 0 subsections 14 articles

14/14 articles

21SectionInheritance 0 subsections 7 articles

7/7 articles

1Introduction to Inheritance

2extends Keyword

3super Keyword

4Method Overriding

5Constructor Chaining

6Object Class

7instance of Operator

22SectionPolymorphism 0 subsections 5 articles

5/5 articles

1Introduction to Polymorphism

2Compile-Time Polymorphism

3Runtime Polymorphism

4Dynamic Method Dispatch

5Covariant Return Types

23SectionAbstraction 0 subsections 9 articles

9/9 articles

1Introduction to Abstraction

8Functional Interfaces

9Marker Interfaces

24SectionEncapsulation 0 subsections 3 articles

3/3 articles

1Introduction to Encapsulation

2Data Hiding in Java

3Creating Immutable Classes

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