HexLab Java Tutorial Hub

Learn Java through focused lessons, one topic at a time.

Start with the basics and move through syntax, object-oriented programming, collections, exception handling, and practice questions in a clean tutorial flow.

Structure

Each lesson gets its own page for better readability and SEO.

Navigation

Use the lesson cards below to jump directly into any topic.

Focus

The hub stays lean so the lesson pages carry the actual content.

Lessons

Choose a lesson to start learning

Lesson 1

What is Java?

Learn what Java is, who created it, why WORA matters, and where Java is used in real projects.

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Lesson 2

Features of Java

Learn the key features that make Java simple, secure, portable, robust, and widely used.

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Lesson 3

Keywords in Java

Learn Java keywords, their meaning, and why reserved words cannot be used as identifiers.

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Lesson 4

Tokens

Learn Java tokens, keywords, identifiers, literals, operators, separators, comments, and constants.

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Lesson 5

Java Statements

Learn what Java statements are, the main statement types, and how command-line arguments work in a first Java program.

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Lesson 6

Exception Handling

Handle runtime problems with try, catch, finally, and clean Java error management.

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Practice

Practice Questions

Review common beginner questions on JDK, JRE, JVM, OOP, collections, and exceptions.

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