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Inheritance in Java

By Dinesh Thakur

The objects are the building blocks of the object oriented programming language. A programmer may use multiple objects belonging to different classes in some situations, which may have some relationship among themselves as they share some common features. 

Let us consider an example of a program containing objects of two different classes, Car and Motorcycle, for maintaining car and motorcycle information, respectively. Both Car and Motorcycle classes exhibit some relationship as both are vehicles and share some common features like speed, engine specification, etc. To represent the relationship between classes, we use the concept of Inheritance. [Read more…] about Inheritance in Java

What is Encapsulation in Java? – Definition

By Dinesh Thakur

Definition: Encapsulation and data hiding are the key features of object oriented programming. Encapsulation refers to the ability to package related behavior in an object bundle and control or restrict their access in both function and data from other objects. It necessarily is all about packaging related stuff together and keeping them away from external elements. You will note that keywords encapsulation along with data hiding is used interchangeably all over. [Read more…] about What is Encapsulation in Java? – Definition

What is Java? – Definition and Meaning

By Dinesh Thakur

Java is the object-oriented, platform-independent programming language used to develop distributed applications that run on the Internet. It is similar to C++ high-level programming language and architecture-neutral developed by James Gosling, an engineer at Sun Microsystems in 1995 and later acquired by Oracle Corporation. He decided to create a new language since he was not very happy with the C++ programming language used and first named it Oak  after the oak tree that he could observe from his office window. [Read more…] about What is Java? – Definition and Meaning

Java Compiler

By Dinesh Thakur

The Java Compiler (Javac) is a command line tool that reads java source code files and compiles them into executable Java bytecode classes. The Java source code must be contained in files whose file names end with .java extension. [Read more…] about Java Compiler

What is enum in java?

By Dinesh Thakur

Enumeration (enum) was not originally available in Java though it was available in other language like C and C++ but eventually Java realized and added to version 5 of Java were the safe type enumerations (Type Safe Enums), which allows you to create enums in Java, just as they exist in other technologies. It is defined by the reserved word enum, and each item in the enumeration is represented by an object of the same type as the Enum. The definition of an enumeration is no more than the definition of a special kind of class. If they were in another package, they should be imported like any other normal classes. [Read more…] about What is enum in java?