📄️ 1.1 Course Overview
Welcome to the Java Foundations course! In this section, you will be introduced to the fundamental concepts of Java programming. You will learn about the Java Development Kit (JDK), the Java Runtime Environment (JRE), and how to set up your development environment. Basic syntax, data types, variables, and operators will also be covered.
📄️ 1.2 Java Features
Java is known for its powerful features that have made it a popular programming language. Often referred to as the 'old daddy' of modern object-oriented programming, Java first appeared in 1995 and has significantly influenced many languages that followed. In this section, we'll cover the key features of Java. To create a drive to achieve your goals, it's important to understand the value of what you're pursuing. Java offers excellent value for money.
📄️ 1.3 Setup Environment
To get started with Java, you can easily run your code in various online tools, such as:
📄️ 1.4 First Java Program
In this section, we'll write a simple program that prints "Hello, World!" to the console—a classic first program for many languages. I remember writing my first "Hello, World!" in C Programming Language about 22 years ago, in 2002. The steps are straightforward: we'll write the code, compile it, and run it.
📄️ 1.5 Classes and Packages
In Java, classes and packages are essential tools for organizing code, maintaining readability, and managing complexity, especially in larger projects. This tutorial will walk you through both concepts, starting with classes and then explaining packages.
📄️ 1.6 Variables and Scope
Introduction
📄️ 1.7 Java Keywords
In Java, keywords are reserved words that have a predefined meaning in the language. These keywords cannot be used as identifiers (names for variables, classes, methods, etc.). Java 8 introduced new keywords along with existing ones that form the foundation of the language.