Java Tutorial

Java is a high-level, object-oriented programming language that was developed by James Gosling and his team at Sun Microsystems (which was later acquired by Oracle Corporation). Java was first released in 1995 and has since become one of the most popular programming languages in use today.

Here are some of the key characteristics of Java:

  1. Platform independence: Java is designed to be platform independent, meaning that it can run on any hardware and operating system that supports the Java Virtual Machine (JVM). This is achieved through the use of bytecode, which is a platform-neutral format that can be executed by any JVM.

  2. Object-oriented: Java is a pure object-oriented programming language, which means that everything in Java is an object, and all operations are performed on objects. This allows for greater flexibility, modularity, and code reuse.

  3. Garbage collection: Java has an automatic garbage collection system, which means that the JVM automatically manages the memory used by objects and frees up memory that is no longer needed. This makes Java programs more memory-efficient and reduces the risk of memory leaks.

  4. Robust and secure: Java is designed to be robust and secure, with features such as strong typing, exception handling, and automatic memory management that help prevent errors and vulnerabilities in code.

  5. Rich API: Java has a rich set of APIs (Application Programming Interfaces) that provide a wide range of functionality for developers, such as graphical user interfaces, database connectivity, networking, and more.

  6. Multi-threaded: Java supports multi-threading, which allows for the concurrent execution of multiple threads of code within a single program. This enables Java programs to take advantage of modern multi-core processors and achieve greater performance.

Overall, Java is a powerful and versatile programming language that is widely used in a variety of applications, from enterprise software to mobile app development to web development. Its platform independence, object-oriented design, automatic memory management, and robust security features make it a popular choice for developers worldwide.


Java Tutorial

Operators

Flow Control

String

Number and Date

Built-in Classes

Array

Class and Object

Inheritance and Polymorphism

Exception Handling

Collections, Generics and Enumerations

Reflection

Input/Output Stream

Annotation