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Java is an object-oriented programming language that uses classes and objects to structure code. Here's a brief overview of the basic syntax in Java.
Example: Hello World Program
public class HelloWorld {public static void main(String[] args) {System.out.println("Hello, World!");}}Copied!✕CopyKey Points:
Class Definition: Every line of code that runs in Java must be inside a class. The class name should start with an uppercase letter.
Main Method: The main method is the entry point of any Java program. It has the following syntax:
public static void main(String[] args)Copied!✕CopySystem.out.println(): This method is used to print text to the console.
Comments in Java
Java supports three types of comments:
Single-line Comment: // This is a single-line comment
Multi-line Comment:
/*This is amulti-line comment*/Copied!✕CopyDocumentation Comment:
/*** This is a documentation comment*/Copied!✕CopyIdentifiers
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Java Syntax - GeeksforGeeks
Jul 10, 2025 · Java Syntax refers to a set of rules that define how Java programs are written and interpreted by the compiler. These rules ensure that your code is readable, logically correct, and error …
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Java Syntax refers to a set of rules that define how Java programs are written and interpreted by the compiler. These rules ensure that your code is readable, l…
Java Syntax - W3Schools
Here's what each part means (you will learn the details later): System is a built-in Java class. out is a member of System, short for "output". println() is a method, …
Code sample
// Main.javapublic class Main { public static void main(String[] args) { System.out.println("Hello World"); }}- Watch full videoWatch full video
Java - Basic Syntax - Online Tutorials Library
Learn the basics of Java programming, such as class, object, method, variable, array, enum, and keyword. See examples of how to write, compile, and run a simple Java progr…
- About Java programs, it is very important to keep in mind the following points. 1. Case Sensitivity − Java is case sensitive, which means identifier Hello and hellowould have different meaning in Java. 2. Class …
Java Cheat Sheet & Quick Reference
This cheat sheet is a crash course for Java beginners and help review the basic syntax of the Java language.
Introduction to Basic Syntax in Java - Baeldung
Jan 8, 2026 · Java Program Structure Now that we’ve learned about data types, variables, and a few basic operators, let’s see how to put these elements together …
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