After all, it's a basic program to introduce Java programming language to a newbie. However, we will not discuss it in this article.
The Java compiler starts executing the code from the main method. Every application in Java must contain the main method. In the program, HelloWorld is the name of the class, and the class definition is:įor now, just remember that every Java application has a class definition, and the name of the class should match the filename in Java. In Java, every application begins with a class definition. It is completely ignored by the Java compiler (an application that translates Java program to Java bytecode that computer can execute). Comments are intended for users reading the code to understand the intent and functionality of the program. In Java, any line starting with // is a comment. Java 'Hello, World!' Program // Your First Program Note: You can use our online Java compiler to run Java programs. Let's explore how Java 'Hello, World!' program works.
Since it's a very simple program, it's often used to introduce a new programming language to a newbie. A 'Hello, World!' is a simple program that outputs Hello, World! on the screen.
