10 Programming language you must learn.

1.Java

What it is: Java is a class-based, object-oriented programming language developed by Sun Microsystems
in the 1990s. It's one of the most in-demand programming languages, a standard for enterprise software, web-based content, games and mobile apps, as well as the Android operating system. Java is designed to work across multiple software platforms, meaning a program written on Mac OS X, for example, could also run on Windows.

2. C Language

What it is: A general-purpose, imperative programming language developed in the early '70s, C is the oldest and most widely used language, providing the building blocks for other popular languages, such as C#, Java, JavaScript and Python. C is mostly used for implementing operating systems and embedded applications.

Because it provides the foundation for many other language , it is advisable to learn c and c ++ before moving to others.

3. C++

What it is:  C++ is an intermediate-level language with object-oriented programming features, originally designed to enhance the C language. C++ powers major software like Firefox, Winamp and Adobe programs. It's used to develop systems software, application software, high-performance server and client applications and video games.

4. PHP

What it is: PHP (Hypertext Processor) is a free, server-side scripting language designed for dynamic websites and app development. It can be directly embedded into an HTML source document rather than an external file, which has made it a popular programming language for web developers. PHP powers more than 200 million websites, including Wordpress, Digg and Facebook.

Where to learn it: Udemy, Codecademy, Lynda.com, Treehouse, Zend Developer Zone, PHP.net.

5. Objective-C

What it is: Objective-C is a general-purpose, object-oriented programming language used by the Apple operating system. It powers Apple's OS X and iOS, as well as its APIs, and can be used to create iPhone apps, which has generated a huge demand for this once-outmoded programming language.

Where to learn it: Udemy, Lynda.com, Mac Developer Library, Cocoa Dev Central, Mobile Tuts+.

6. C#

What it is: Pronounced "C-sharp," C# is a multi-paradigm language developed by Microsoft as part of its .NET initiative. Combining principles from C and C++, C# is a general-purpose language used to develop software for Microsoft andWindows platforms.

Where to learn it: Udemy, Lynda.com, Microsoft Virtual Academy,TutorialsPoint.com.

7. Python

What it is: Python is a high-level, server-side scripting language for websites and mobile apps. It's considered a fairly easy language for beginners due to its readability and compact syntax, meaning developers can use fewer lines of code to express a concept than they would in other languages. It powers the web apps for Instagram, Pinterest and Rdio through its associated web framework, Django, and is used by Google, Yahoo! and NASA.

Where to learn it: Udemy, Codecademy, Lynda.com, LearnPython.org,Python.org.

8. Ruby

What it is: A dynamic, object-oriented scripting language for developing websites and mobile apps, Ruby was designed to be simple and easy to write. It powers the Ruby on Rails (or Rails) framework, which is used on Scribd,GitHub, Groupon and Shopify. Like Python, Ruby is considered a fairly user-friendly language for beginners.

Where to learn it: Codecademy, Code School, TryRuby.org, RubyMonk

Introduction to Programing.

PROGRAM

A program is a set of logically arranged instructions which are given by a person to the computer with a view to make the computer work on input provided and generate specific results.

INPUT

Input is the term used to refer to the facts and figure which the user feeds into the computer. Input is something which we want the computer to process and convert into desired results. Input is also called DATA. The computer follows instructions given by the way of a program and uses the input provided to give us the required results.

PROCESSING

Processing is the term used to refer to the results obtained after processing is complete. It is also called Information. In other words,  processed input is output. The name is allocated in the memory is called variable. When a value is stored in a memory location, it means a variable is assigned a value. The value of the data become the variable's current value.

For the computer to function as per our requirement, we should provide some data and instruction which will tell the computer exactly what to do with the data. The instruction Would be of three types.

1.  Instruction which tell the computer to ask data from the user.

2.  Instruction which tell the computer to process the data.

3.  Instruction which tells the computer to show/print results.

The computer then works on the instruction one by one. The data is stored in septate location in memory. Each such location is identified by the names. Intermediate results that are generated by instruction are also stored in the memory. Final results when available are shown on screen on or printed on the printer....