Installing Java and IntelliJ IDEA The course begins with a step-by-step guide to installing the Java Development Kit (JDK) and IntelliJ IDEA, an Integrated Development Environment. The JDK is essential for developing and running Java programs, while IntelliJ simplifies coding tasks. Users are advised to download the community version of IntelliJ as it’s free and sufficient for learning purposes.
Introduction to Java's Origins Java was created by Sun Microsystems in 1991 under James Gosling's leadership. Initially named Oak, its goal was simplicity, portability, reliability—drawing from C/C++ but removing problematic features. It became the first application language of the World Wide Web due to its versatility.
Object-Oriented Programming in Java Java operates solely on Object-Oriented Programming principles (OOP), requiring developers to use classes rather than procedural programming methods like POP found in languages such as C++. This design ensures structured code development focused on objects representing real-world entities.
Compilation Process Explained: Bytecode & Machine Code Java combines compilation into bytecode with interpretation into machine code during execution. This dual nature makes it both compiled and interpreted—a concept that becomes clearer through hands-on practice when writing actual programs using tools like JDK or IDEs such as IntelliJ IDEA.
'Hello World' Program Setup Guide 'Hello World,' a beginner-friendly program example demonstrates how system.out.println outputs text onto screens via simple commands within command-line applications initially before advancing toward GUI-based projects later once foundational concepts solidify among learners