Java Tutorial for Beginners
Mosh is a software engineer with over two decades of experience and has taught over 3 million people
how to code. He has designed this course for anyone who wants to learn Java. If you’re a beginner,
don’t worry – Mosh promises to make Java super simple and hold your hand through this course. He
hopes you’ll stick around and learn this beautiful and powerful programming language.
The Anatomy of a Java Program
In this Java tutorial, we’ll be looking at the basics of a Java program. The smallest building block in
Java programs are functions. If a function is a block of code that performs a task, think of the buttons
on the remote control of your TV. Every Java program should have at least one function and that
function is called main.
Writing Java Code
After the parentheses, we have a pair of curly braces and inside these braces, we write the actual Java
code. Every Java program should have at least one function and that function is called main. So, main
is the entry point to our programs. Whenever we execute a Java program, the main function gets
called and the code inside this function gets executed.
Downloading IntelliJ IDEA
IntelliJ IDEA is absolutely free and it’s more than enough for this course, so download it now.
Download IntelliJ IDEA
A class is a container for related methods, so we use classes to organize our code. By the same token,
we have a concept called package, and we use a package to group related classes.
As our applications grow, we’re going to end up with hundreds or even thousands of classes, so we
should properly organize these classes into packages. The base package for a Java project is the
domain name of your company In reverse.
The code editor might look a little bit intimidating at first, but trust me it’s really easy and you’re going
to learn about it throughout this course. For now, just type a base package for your project; it can be
your name or whatever, it doesn’t really matter.
Mosh is a software engineer with over two decades of experience and has taught over 3 million people
how to code. He has designed this course for anyone who wants to learn Java. If you’re a beginner,
don’t worry – Mosh promises to make Java super simple and hold your hand through this course. He
hopes you’ll stick around and learn this beautiful and powerful programming language.
The Anatomy of a Java Program
In this Java tutorial, we’ll be looking at the basics of a Java program. The smallest building block in
Java programs are functions. If a function is a block of code that performs a task, think of the buttons
on the remote control of your TV. Every Java program should have at least one function and that
function is called main.
Writing Java Code
After the parentheses, we have a pair of curly braces and inside these braces, we write the actual Java
code. Every Java program should have at least one function and that function is called main. So, main
is the entry point to our programs. Whenever we execute a Java program, the main function gets
called and the code inside this function gets executed.
Downloading IntelliJ IDEA
IntelliJ IDEA is absolutely free and it’s more than enough for this course, so download it now.
Download IntelliJ IDEA
A class is a container for related methods, so we use classes to organize our code. By the same token,
we have a concept called package, and we use a package to group related classes.
As our applications grow, we’re going to end up with hundreds or even thousands of classes, so we
should properly organize these classes into packages. The base package for a Java project is the
domain name of your company In reverse.
The code editor might look a little bit intimidating at first, but trust me it’s really easy and you’re going
to learn about it throughout this course. For now, just type a base package for your project; it can be
your name or whatever, it doesn’t really matter.
