What is Java?
Java is a general-purpose, object-oriented programming language designed to run consistently across different operating systems through the Java Virtual Machine (JVM). It is widely used for dependable, long-lived applications.
Where is Java used?
- Backend services and REST APIs
- Android applications and SDKs
- Enterprise, banking, and large-scale systems
- Desktop tools and data-processing platforms
Prerequisites to learn Java
- Basic computer usage; no prior programming experience is required
- A Java Development Kit (JDK) and a code editor
- Willingness to practise variables, control flow, methods, and classes
Advantages of Java
- Portable across platforms through the JVM
- Strong type checking and mature development tools
- Large ecosystem, community, and library support
- Automatic memory management
Limitations of Java
- More verbose than many scripting languages
- JVM startup and memory overhead can matter for small programs
- Beginners need time to understand object-oriented concepts
Start learning Java
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