Java is one of the most popular and versatile programming languages in the world. It’s used everywhere — from mobile apps (like Android) to large-scale enterprise systems and even game development.
In this course, we’ll start from the very basics and work our way up to more advanced topics, giving you the skills to confidently read, write, and understand Java programs.
Your First Look at Java
Here’s a very simple Java program:
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, world!");
}
}
What’s Happening Here?
public class HelloWorld → Defines a class called HelloWorld.public static void main(String[] args) → This is the entry point of any Java program.System.out.println(...) → Prints text to the console.Don’t worry if you don’t understand every detail yet — we’ll break it all down step by step in the coming lessons.