Java is both a platform and a programming language. Java is a programming language that is high-level, robust, object-oriented, and safe. Sun Microsystems (now Oracle) created Java in 1995. The father of Java, James Gosling, is well-known. It was called Oak before Java. Because Oak had already been registered as a firm, James Gosling and his team renamed it Java.
Java has two processes - Compilation and Interpretation. The Java Compiler converts the code present in Java into byte codes. The Java Virtual Machine (JVM) converts the byte codes into machine code which the machine executes directly.
Object-oriented programming (OOP) is a programming technique that use classes and objects to construct a program. Java's core is also known as object-oriented programming. Object-oriented programming is a programming paradigm that centers a program on objects and well-defined interfaces. For accessing the code, this is also known as data control. Programmers describe the data type of a data structure as well as the operations that are performed on it in this technique.
In this “Java Architecture and OOPs - Mobile Application Development Technology” you will learn about following topics:
- Java Architecture in Detail
- Java Virtual Machine (JVM)
- Why Java is Platform Independent?
- Java Runtime Environment (JRE)
- Just in Time Compiler
- Java Classes and Objects
- Difference between Class and Object
- Class Methods and Instances
- Inheritance in Java
- Types of Inheritance
- Polymorphism in Java
- Types of Polymorphism
- Method Overloading
- Method Overriding
- Interface in Java
- Abstract class in Java
- Difference between Interface and Abstract Class
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