Java is a high-level, object-oriented programming language developed by Sun Microsystems in 1995. It is mostly used for building desktop applications, web applications, Android apps, and enterprise systems. Key Features of Java Platform Independent: Java is famous for its Write Once, Run Anywhere (WORA) feature. This means we can write our Java code once, and it will run on any device or operating system if Java Virtual Machine is installed. Simple: No complex features like pointers and multiple inheritance, which makes it a good choice for beginners. Object-Oriented: This makes code clean and reusable. Secured: Since there are no pointers, it has built-in protections to keep our programs secure from common problems like memory leakage and segment fault. Multithreading: Programs can do many things at the same time using multiple threads. This is useful for handling complex tasks like processing transactions. Just-In-Time (JIT) Compiler: Java uses a JIT compiler. It improves performance by converting the bytecode into machine readable code at the time of execution. What Can We Do with Java? Java is used for: Mobile App Development: Android development using Android Studio. Web Development: Using frameworks like Spring Boot and Jakarta EE. Desktop GUI Applications: With libraries like JavaFX and Swing. Enterprise Applications: Java is the backbone of many banking and business software. Game Development: Through game engines like LibGDX. Big Data Technologies: Like Hadoop and Apache Kafka. Internet of Things (IoT): Java can run on embedded systems and devices. Cloud-based Applications: Java is used in services on AWS, Azure, and Google Cloud. Scientific Applications: Java is used in tools that process large amounts of scientific data.