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Java , A brief Introduction
Java is an object-oriented programming language created by Sun Microsystems in 1995. It uses classes and objects to create reusable code and is platform independent, meaning code written in Java can run on any system. Key features of Java include its simple syntax, automatic memory management, and support for multithreading. It also incorporates important object-oriented programming concepts like inheritance, polymorphism, and encapsulation.
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Java , A brief Introduction
- 1. JAVA A Brief Introduction JagritiSrivastava
- 2. Terms Used InJAVA Object Class Methods Java Program
- 3. Object/Class/Methods • Class HumanObject Method States Name FamilyName Height Weight Behavior Can walk Can talk… Walking Talking Expressions
- 4. JAVA ??? • ObjectOriented Programing Language • Developer : Sun Microsystem 1995 • Write Once Run Anywhere
- 6. Features • Easy learning/simplesyntax/clean & easy to understand • Object everywhere • Software = object data + object behavior
- 7. PLATFORM INDEPENDENT Write oncerun anywhere Bytecode
- 8.
- 9. Robust • Strong • NoPointer So high security • Automatic Garbage Collection • Exception Handling and type checking
- 10. • Architecture Neutral– Size of primitive type is fixed • Portable – Can be carried anywhere • High Performance – • Distributed – distributed application can be called from anywhere
- 11. Multithreaded • Many taskat one time • Defines multiple thread • Shares memory for threads.
- 12.
- 13. • Polymorphism –takingmany forms • Inheritance – when one acquires properties of another • Overriding – implementation of any method that is already provided
- 14. Animal Class Catclass run method run method Parent Class Child class Inheritance Method Overriding Run method – polymorphism
- 15. • Encapsulation –wrapping data and method as a single unit • Making data private or also in a package
- 16. Abstraction • hiding theimplementation details from the user
- 17.