Java Intro — Free Java Tutorial

Learn Java Intro in Java with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

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TL;DR: Learn Java Intro in Java with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated Jul 14, 2026

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Java Intro in Java

Java is a high-level, class-based, object-oriented programming language designed to have as few implementation dependencies as possible. Created by James Gosling at Sun Microsystems in 1995, Java revolutionized software development by introducing the concept of the Java Virtual Machine (JVM). Its motto "Write Once, Run Anywhere" (WORA) means compiled Java code runs on any platform with a JVM, making it truly platform-independent.

James Gosling created Java in 1995 at Sun Microsystems as a solution for embedded systems, initially called "Oak." It was officially released as Java 1.0 in January 1996. The name "Java" was chosen because it is a type of coffee, fitting the programming culture. Java 1.2 (1998) introduced the Java Foundation Classes (Swing) and Applets, transforming web development.

Java evolved from a language for applets (browser plugins) to the backbone of enterprise computing. Key milestones: J2EE (2000) standardized enterprise development, Java 5 (2004) added generics and annotations, Java 8 (2014) introduced Lambda expressions and functional programming, and recent versions (Java 17+, 2021) bring pattern matching and record types. This evolution kept Java modern and relevant.

Java powers Android app development (official language until Kotlin), enterprise application servers (Spring, Jakarta EE), big data tools (Hadoop, Spark), microservices (Spring Boot, Quarkus), and cloud platforms (AWS, Google Cloud). Popular frameworks: Spring, Hibernate, Maven, Apache Kafka, and Elasticsearch are all Java-based.

Java is the most popular language for enterprise syste

Java Intro — Syntax

public class ClassName {
    public static void main(String[] args) {
        // your code here
        System.out.println("Hello, World!");
    }
}

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