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