JAVA TRAINING IN CHENNAI

Java is a high-level, object-oriented programming language developed by Sun Microsystems (now owned by Oracle). It is platform-independent, meaning Java code can run on any device that has a Java Virtual Machine (JVM).

• Platform-independent (Write Once, Run Anywhere)
• Object-oriented
• Secure
• Robust
• Multithreaded
• High performance with Just-In-Time (JIT) compiler

• JDK (Java Development Kit): A toolkit to develop and compile Java programs. It includes JRE and development tools like javac.
• JRE (Java Runtime Environment): Provides the libraries, JVM, and other components required to run Java applications.
• JVM (Java Virtual Machine): A runtime environment that executes Java bytecode and makes the program platform-independent.

• Encapsulation
• Inheritance
• Polymorphism
• Abstraction

• A class is a blueprint for objects in Java. It defines properties (fields) and behaviors (methods) of objects.

• An object is an instance of a class. It has states (fields) and behaviors (methods).

• • byte
  • short
  • int
  • long
  • float
  • double
  • char
  • boolean

• A constructor is a special method used to initialize objects. It has the same name as the class and no return type.

• Inheritance allows a class (child) to inherit the properties and methods of another class (parent).