Android – Architecture
Android operating system is a stack of software components which is roughly divided into five sections and four main layers…
Read MoreAndroid – Environment Setup
You will be glad to know that you can start your Android application development on either of the following operating…
Read MoreAndroid – Overview
What is Android? Android is an open source and Linux-based Operating System for mobile devices such as smartphones and tablet…
Read More
C# – File I/O
A file is a collection of data stored in a disk with a specific name and a directory path. When…
Read MoreC# – Exception Handling
An exception is a problem that arises during the execution of a program. A C# exception is a response to…
Read MoreC# – Regular Expressions
A regular expression is a pattern that could be matched against an input text. The .Net framework provides a regular…
Read MoreC# – Preprocessor Directives
The preprocessor directives give instruction to the compiler to preprocess the information before actual compilation starts. All preprocessor directives begin…
Read MoreC# – Namespaces
A namespace is designed for providing a way to keep one set of names separate from another. The class names…
Read MoreC# – Interfaces
An interface is defined as a syntactical contract that all the classes inheriting the interface should follow. The interface defines…
Read MoreC# – Operator Overloading
You can redefine or overload most of the built-in operators available in C#. Thus a programmer can use operators with…
Read MoreC# – Polymorphism
The word polymorphism means having many forms. In object-oriented programming paradigm, polymorphism is often expressed as ‘one interface, multiple functions’.…
Read MoreC# – Inheritance
One of the most important concepts in object-oriented programming is inheritance. Inheritance allows us to define a class in terms…
Read MoreC# – Classes
When you define a class, you define a blueprint for a data type. This does not actually define any data,…
Read MoreC# – Enums
An enumeration is a set of named integer constants. An enumerated type is declared using the enum keyword. C# enumerations…
Read MoreC# – Structures
In C#, a structure is a value type data type. It helps you to make a single variable hold related…
Read MoreC# – Strings
In C#, you can use strings as array of characters, However, more common practice is to use the string keyword…
Read MoreC# – Arrays
An array stores a fixed-size sequential collection of elements of the same type. An array is used to store a…
Read MoreC# – Nullables
C# provides a special data types, the nullable types, to which you can assign normal range of values as well…
Read MoreC# – Methods
A method is a group of statements that together perform a task. Every C# program has at least one class…
Read MoreC# – Encapsulation
Encapsulation is defined ‘as the process of enclosing one or more items within a physical or logical package’. Encapsulation, in…
Read MoreC# – Loops
There may be a situation, when you need to execute a block of code several number of times. In general,…
Read MoreC# – Decision Making
Decision making structures requires the programmer to specify one or more conditions to be evaluated or tested by the program,…
Read MoreC# – Operators
An operator is a symbol that tells the compiler to perform specific mathematical or logical manipulations. C# has rich set…
Read MoreC# – Constants and Literals
The constants refer to fixed values that the program may not alter during its execution. These fixed values are also…
Read MoreC# – Variables
A variable is nothing but a name given to a storage area that our programs can manipulate. Each variable in…
Read MoreC# – Type Conversion
Type conversion is converting one type of data to another type. It is also known as Type Casting. In C#,…
Read MoreC# – Data Types
The variables in C#, are categorized into the following types − Value types Reference types Pointer types Value Type Value…
Read MoreC# – Basic Syntax
C# is an object-oriented programming language. In Object-Oriented Programming methodology, a program consists of various objects that interact with each…
Read MoreC# – Program Structure
Before we study basic building blocks of the C# programming language, let us look at a bare minimum C# program…
Read MoreC# – Environment
In this chapter, we will discuss the tools required for creating C# programming. We have already mentioned that C# is…
Read More
Quadratic equation
In algebra, a quadratic equation (from the Latin quadratus for “square“) is any equation that can be rearranged in standard…
Read More
Java – Documentation Comments
The Java language supports three types of comments − Sr.No. Comment & Description 1 /* text */ The compiler ignores…
Read MoreJava – Applet Basics
An applet is a Java program that runs in a Web browser. An applet can be a fully functional Java…
Read MoreJava – Multithreading
Java is a multi-threaded programming language which means we can develop multi-threaded program using Java. A multi-threaded program contains two…
Read MoreJava – Sending Email
To send an e-mail using your Java Application is simple enough but to start with you should have JavaMail API…
Read MoreJava – Networking
The term network programming refers to writing programs that execute across multiple devices (computers), in which the devices are all…
Read MoreJava – Serialization
Java provides a mechanism, called object serialization where an object can be represented as a sequence of bytes that includes…
Read MoreJava – Generics
It would be nice if we could write a single sort method that could sort the elements in an Integer…
Read MoreJava – Collections Framework
Prior to Java 2, Java provided ad hoc classes such as Dictionary, Vector, Stack, and Properties to store and manipulate…
Read MoreJava – Data Structures
The data structures provided by the Java utility package are very powerful and perform a wide range of functions. These…
Read MoreJava – Packages
Packages are used in Java in order to prevent naming conflicts, to control access, to make searching/locating and usage of…
Read MoreJava – Interfaces
An interface is a reference type in Java. It is similar to class. It is a collection of abstract methods.…
Read MoreJava – Encapsulation
Encapsulation is one of the four fundamental OOP concepts. The other three are inheritance, polymorphism, and abstraction. Encapsulation in Java…
Read MoreJava – Abstraction
As per dictionary, abstraction is the quality of dealing with ideas rather than events. For example, when you consider the…
Read MoreJava – Polymorphism
Polymorphism is the ability of an object to take on many forms. The most common use of polymorphism in OOP…
Read MoreJava – Overriding
In the previous chapter, we talked about superclasses and subclasses. If a class inherits a method from its superclass, then…
Read MoreJava – Inheritance
Inheritance can be defined as the process where one class acquires the properties (methods and fields) of another. With the…
Read MoreJava – Inner classes
Nested Classes In Java, just like methods, variables of a class too can have another class as its member. Writing…
Read MoreJava – Exceptions
An exception (or exceptional event) is a problem that arises during the execution of a program. When an Exception occurs…
Read MoreJava – Files and I/O
The java.io package contains nearly every class you might ever need to perform input and output (I/O) in Java. All…
Read More