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JAVA - Factory Pattern

Factory Method pattern is that it allows for the case where a client doesn't know what concrete classes it will be required to create at runtime

 Java Java 
By Tarun Kumar posted   yesterday

JAVA : Singleton Pattern

The Singleton's purpose is to control object creation, limiting the number of objects to one only. Since there is only one Singleton instance, any instance fields of a Singleton will occur only once per class, just like static fields. Singletons often control access to resources such as database connections or sockets.

 Java Java 
By Tarun Kumar posted   yesterday

iOS Concept : Delegate

Delegation is used when dealing with events, and in its simplest form, it is just a callback mechanism:

By Tarun Kumar posted   2 days ago

iOS Concept : Class cluster

Class clusters are a design pattern that the Foundation framework makes extensive use of Class clusters

By Tarun Kumar posted   2 days ago

What are module in erlang?

Modules are a bunch of functions regrouped in a single file, under a single name. Additionally, all functions in Erlang must be defined in modules.

By Sunil Singh posted   14 days ago

Recursion in erlang.

Most computer programming languages support recursion by allowing a function to call itself within the program text. Some functional programming languages do not define any looping constructs but rely solely on recursion to repeatedly call code. Computability theory has proven[attribution needed] that these recursive-only languages are Turing complete; they are as computationally powerful as Turing complete imperative languages, meaning they can solve the same kinds of problems as imperative languages even without iterative control structures such as “while” and “for”.

By Sunil Singh posted   16 days ago

Higher order function in erlang.

In mathematics and computer science, a higher-order function (also functional form, functional or functor) is a function that does at least one of the following: takes one or more functions as an input.

By Sunil Singh posted   16 days ago

Java static keyword

If you declare any variable as static , it is known as static variable. Let's understand more elaborately about static variables,

 Java Java 
By ANkita gupta posted   one month ago

Constructor in java

Constructor in java is a special type of method that is used to initialize the object. Java constructor is invoked at the time of object creation. It constructs the value i.e. provides data for the object that is why it is known as constructor.

 Java Java 
By ANkita gupta posted   one month ago

Uninstall Internet Explorer on Windows 7

If you're running Windows 7, you can uninstall Internet Explorer by clicking the Windows Start button and navigating to the Control Panel.

By Kamlakar Singh posted   one month ago

Method overlaoding in JAVA

 Java Java 
By ANkita gupta posted   one month ago

How to turn off proxy server Windows 8

A proxy server is an intermediary between your computer and the internet, often used to hide your real location and allow you to access websites that would otherwise be blocked.

By Kamlakar Singh posted   one month ago

Authentication in ASP.NET

Authentication is the process of obtaining identification credentials such as name and password from a user and validating those credentials against some authority. If the credentials are valid, the entity that submitted the credentials is considered

By Kamlakar Singh posted   one month ago

Throw exception in java

The java throw keyword is used to explicitly throw an exception. We can throw either checked or unchecked exception in java by throw keyword. The throw keyword is mainly used to throw custom exception.

By Kamlakar Singh posted   one month ago

Nested try block in java

One try catch block can be present in the another try’s body. This is called nesting of try catch blocks. Each time a try block does not have a catch handler for a particular exception the stack is unwound and the next try block’s catch handlers are inspected for a match.

By Kamlakar Singh posted   one month ago

How to play iOS apps on PC

There are no perfect ways to run iPhone apps and iPad apps on your Windows or OS X PC. The best way to use your favourite iOS apps on your laptop or PC is by using a simulator.

By Kamlakar Singh posted   one month ago

Multiple catch block in java

If you have to perform different tasks at the occurrence of different Exceptions, use java multi catch block.

By Kamlakar Singh posted   one month ago

What is erlang?

Erlang was developed at Ericsson and was designed from the ground up for writing scalable, fault-tolerant, distributed, non-stop, soft-realtime applications.Everything in the language, runtime and libraries reflects that purpose, which makes Erlang the best platform for developing this kind of software.

By Sunil Singh posted   one month ago

Unicode System

Unicode is a universal international standard character encoding that is capable of representing most of the world's written languages

 Java Java 
By ANkita gupta posted   one month ago

Internal Details of JVM( Java Virtual Machine)

JVMs are available for many hardware and software platforms (i.e.JVM is plateform dependent). JVM (Java Virtual Machine) is an abstract machine. It is a specification that provides runtime environment in which java bytecode can be executed

 Java Java 
By ANkita gupta posted   one month ago

How to find RAM Size

In this blog I’m explaining about How to find RAM speed, size and type.

By Kamlakar Singh posted   one month ago

How to Handle Exception in java

Try block is used to enclose the code that might throw exception. It must be used within method. Try block must be followed by either catch or finally block.

By Kamlakar Singh posted   one month ago

Difference between JDK, JRE and JVM

JVM (Java Virtual Machine) is an abstract machine. It is a specification that provides runtime environment in which java bytecode can be executed.

 Java Java 
By ANkita gupta posted   one month ago

How to set Permanent Path of JDK in Windows

For setting the permanent path of JDK, you need to follow few steps

 Java Java 
By ANkita gupta posted   one month ago

Internal Details of Java

we are going to learn, what happens while compiling and running the java program. Moreover, we will see some question based on the program.

 Java Java 
By ANkita gupta posted   one month ago

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Tarun Kumar added new Article JAVA - AbstractFactory Pattern   yesterday

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