What is Java?

Introduction

Java is a high-level, class-based, object-oriented programming language released in 1995 by Sun Microsystems and now maintained by Oracle Corporation. It is widely used in software development because of its platform independence and reliability. The key principle of Java is “Write Once, Run Anywhere” (WORA). A program written in Java can run on any operating system with a Java Virtual Machine (JVM).

“Java ek high-level, class-based, object-oriented programming language hai jo 1995 me Sun Microsystems ne release kiya tha aur ab Oracle maintain karta hai. Ye software development me bahut use hoti hai kyunki ye platform-independent aur reliable hai. Java ka main principle hai ‘Write Once, Run Anywhere’ (WORA). Matlab ek hi program har operating system pe chal sakta hai jisme JVM installed ho.”

History of Java

Java was initially developed as “Oak” by James Gosling in 1991 and officially released as Java in 1995. In 2010, Oracle Corporation acquired Sun Microsystems and continues to develop Java.

“Java ko pehle 1991 me James Gosling ne ‘Oak’ ke naam se develop kiya tha aur 1995 me ise officially Java ke naam se release kiya gaya. 2010 me Oracle Corporation ne Sun Microsystems ko acquire kiya aur abhi tak Java ko develop aur maintain kar raha hai.”

Java Architecture

Java source code is compiled into bytecode using the Java compiler. This bytecode is executed by the JVM, making Java platform-independent. The Java ecosystem consists of JDK, JRE, and JVM.

“Java ke source code ko compiler bytecode me convert karta hai. Fir JVM is bytecode ko execute karta hai, is wajah se Java platform-independent hai. Java ka ecosystem JDK, JRE aur JVM se milke banta hai.”

Features of Java

• Object-Oriented – Programs are designed around objects and classes.
  “Object-Oriented – Program objects aur classes ke around design kiya jata hai.”
• Platform-Independent – The same program runs on different operating systems.
  “Platform-Independent – Ek hi program alag-alag operating systems pe chal sakta hai.”
• Secure – Built-in features protect against unauthorized access.
  “Secure – Built-in features unauthorized access se bachate hain.”
• Robust – Strong memory management and error handling.
  “Robust – Memory management aur error handling strong hai.”
• Multithreaded – Multiple tasks can run simultaneously.
  “Multithreaded – Ek program me ek saath multiple kaam ho sakte hain.”

Editions of Java

• Java SE (Standard Edition): Core libraries and basic features.
  “Java SE (Standard Edition): Basic features aur core libraries wala version.”
• Java EE (Enterprise Edition): APIs for large-scale applications.
  “Java EE (Enterprise Edition): Bade enterprise-level applications ke liye APIs.”
• Java ME (Micro Edition): Optimized for mobile and embedded systems.
  “Java ME (Micro Edition): Mobile aur embedded devices ke liye optimized version.”
• JavaFX: Toolkit for modern user interfaces.
  “JavaFX: Modern aur advanced user interfaces banane ke liye toolkit.”

Applications of Java

Java is used in desktop applications, web development, Android applications, enterprise software, cloud computing, big data, and IoT devices. Examples include banking systems, Android apps, LinkedIn, Netflix, and Amazon backend systems.

“Java ka use desktop applications, web development, Android apps, enterprise software, cloud computing, big data aur IoT devices me hota hai. Examples hain banking systems, Android apps, LinkedIn, Netflix aur Amazon ka backend.”

Conclusion

Java is not only a programming language but a complete software ecosystem. Its portability, security, and scalability make it one of the most trusted and widely used technologies worldwide.

“Java sirf ek programming language nahi, balki ek complete software ecosystem hai. Iski portability, security aur scalability ki wajah se ye duniya bhar me sabse trusted aur widely used technology hai.”