Collection classes are specialized classes for data storage and retrieval. These classes provide support for stacks, queues, lists, and hash…
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Android – Broadcast Receivers
Broadcast Receivers simply respond to broadcast messages from other applications or from the system itself. These messages are sometime called…
Read MoreC# – Events
Events are user actions such as key press, clicks, mouse movements, etc., or some occurrence such as system generated notifications.…
Read MoreC# – Delegates
C# delegates are similar to pointers to functions, in C or C++. A delegate is a reference type variable that…
Read MoreAndroid – Services
A service is a component that runs in the background to perform long-running operations without needing to interact with the…
Read MoreC# – Indexers
An indexer allows an object to be indexed such as an array. When you define an indexer for a class,…
Read MoreC# – Properties
Properties are named members of classes, structures, and interfaces. Member variables or methods in a class or structures are called…
Read MoreC# – Reflection
Reflection objects are used for obtaining type information at runtime. The classes that give access to the metadata of a…
Read MoreAndroid – Activities
An activity represents a single screen with a user interface just like window or frame of Java.Android activity is the…
Read MoreAndroid Resources Organizing & Accessing
There are many more items which you use to build a good Android application. Apart from coding for the application,…
Read MoreAndroid – Hello World Example
Let us start actual programming with Android Framework. Before you start writing your first example using Android SDK, you have…
Read MoreAndroid – Application Components
Application components are the essential building blocks of an Android application. These components are loosely coupled by the application manifest…
Read MoreC# – Attributes
An attribute is a declarative tag that is used to convey information to runtime about the behaviors of various elements…
Read MoreAndroid – 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 MoreC# – 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…
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