‫We have understood how to run a Java program.
‫Why don't we take a closer look at the program that we've written?
‫The Hello World application consists of two primary components.
‫First, the hell a world class definition and the main method, public class.
‫Hello, world is the first line of our Java program.
‫Every Java application must have at least one class definition that consists of the class keyword,
‫followed by the class name.
‫And the code for each class appears between the opening and closing curly braces.
‫Now we will discuss the subject of classes in further detail and some of the upcoming lectures, but
‫right now it's just enough to know that every Java application begins with a class definition.
‫Public static void main string args or arguments.
‫So this is our next line in the program.
‫In the Java programming language, every application must contain a main method whose signature is,
‫well, just like that.
‫Also will cover how to define a method in Java and the next upcoming lectures.
‫And then finally, line system got out dot print lekan.
‫Hello, world, so the print method prints the contents inside the double quote into the console and
‫inserts a new line after, so it uses a system class from the core library of Java.
‫Now, don't worry, if you don't get it at first, we're going to learn a whole lot more about classes
‫and methods in the next lectures.