Variables In Java-Types of variables in java with examples Variables are defined by giving the name of data types before the variable. In Java, variables must be defined prior to their use. A variable stores values of data types .A variable has a particular size and a value associated with it. In Java, variables can only store values of primitive data types and references to object. Java defines the three types of variables. Each variable can store values of primitive data types or references to objects only. Local variable(method automatic variable) —> These are the variables  declared within a method. These are directly accessed.  Static variable(class variable) —> memory allocated only once. These variables declared using static keyword. These are directly accessed.  Instance variable —> These are the variables declared inside the class . These are s imilar to local variable. Accessing is done through object Default values for member variables If static var...

Naming Convention In Java-camel case example Naming Conventions are rules to be followed by giving a name to the identifier.Identifiers are program elements(such as class,object,variable,method so on ).For building software you should follow this rule to make your code look good, more efficient and more readble.Java has certain rules for naming identifier. This are given below Digit, letters, underscore or currency symbols( £, €, $ ) are allowed                The first letter of any identifier cannot be a digit An identifier name must not be a reserved words or keywords Java follows camelCase rule what is camelcase rule? CamelCase is a way to separate the words in a phrase by making the first letter of each word capitalized and not using spaces (ex :- MyFirstJavaClass) Class name —> should begin with a capital letter(In a single word) If it is multiple words, the first letter of every word begins with a capital letter. Ex :- class Stu...

Keywords in java programming Keyword is a predefined word given by the compiler which has some specific task. Keywords also known as reserved word. All the java technology keywords are lower case . Java programming has a richer set of keywords than C language or C ++ language. Some java keywords are import —>In java programming implementing classes and methods import the packages that purpose using the keyword import. class —> In order to create a class we have use the keyword class to see an example written using the class keyword ) this —> This keyword is used to represent the method belongs to particular current object Super —> It can used in inheritance concept extends —> Also used in inheritance concepts. Accessing methods one class to another class that can done by extends keyword package —> In java there will be package which consists of number of classes and interfaces in order to access that package, using the key word package return —> Return key wor...

oops concepts in java with example programs Oops concepts in java Oops concept is very very important to make java programming easier and increase your programming skill.Four pillars of oops are Abstraction,Encapsulation,Inheritance,Polymorphism.Another technique to carefully understand in Java is classes and objects. This article covers very simple notes for Java programming beginners. What is object and class? The basics of oops is class and object Class is a blueprint which defines some properties and behaviors.  An object is an instance of a class which has those properties and behaviors attached.A class is not allocated memory when it is defined. An object is allocated memory when it is created Class and object —> object is defined as real word entities .Object consists of property and some task Class is a blueprint that object follows, Class  consists of many number of objects Four pillars of oops are Abstraction   —> Means showing only essential parts and hi...

     JAVA BUZZWORDS & H istory of the development of java java buzzwords explanation     Features of java is called as Java Buzzwords Platform independent —> Run on any Environment Object oriented concept(oops) —> Abstraction,Encapsulation,Inheritance and polymorphism Simple —>  No concept of pointers,explicit memory allocation, structures,operator overloading etc  Secure —> Secure for internet application (Raise  out of boundary exception in arrays and it is strong typed language) Robust —> Early checking of error it can achieved garbage collector, exception handling Portable  —> Java program written on one environment can be executed or implemented another environment Multithreading  —> Concurrent execution of several parts of same program at same time(This will improve CPU utilization) Distributed Application —> This are software that runs on multiple computers connected  to a network at ...