Thursday, December 29, 2011

The final keyword in Java

Posted by on Thursday, December 29, 2011
Like other keywords in java, final is also a keyword used in several different contexts to define an entity which cannot later be changed.

Here in this tutorial we will be dealing with final classes, final methods, final variables and also I will be covering blank final variables.

Saturday, December 17, 2011

Java Graphics Tutorial II - Layouts

Posted by on Saturday, December 17, 2011
In the previous tutorial of Java Graphics, I explained about panels, frames and windows which we can put our items. But we didn't set the layout of the window , panel or frame in our last tutorial, what we did was we used the default layout.

Today in this tutorial we will be understanding about the different types on Layouts that are available for us to use and manipulate our GUI.

Tuesday, December 13, 2011

Python Tutorials : Data Types - NUMBERS

Posted by on Tuesday, December 13, 2011
This Post is about numbers and mathematical operations. In this tutorial we shall be covering data types, operators and type conversion. To represent 'Numbers' in python, we have int, float, complex datatypes. For conditional statements, we have 'Bool' datatype

Type ipython on the Terminal ( Ctrl + Alt + T ) to start the interpreter :

$ ipython

Saturday, December 10, 2011

Python Tutorial : Installing IPython (Ubuntu)

Posted by on Saturday, December 10, 2011
Hello Guys, Code 2 Learn starts off its Python Tutorial. Like Java, C++, C etc, Python is also a Programming Language. Python is a general-purpose, high-level programming language whose design philosophy emphasizes code readability.

IPython provides a rich toolkit to help you make the most out of using Python interactively. Its main components are:

  1. Powerful Python shells (terminal- and Qt-based).
  2. Support for interactive data visualization and use of GUI toolkits.
  3. Flexible, embeddable interpreters to load into your own projects.
  4. Tools for high level and interactive parallel computing.

Saturday, December 3, 2011

Java Array tutorial with Examples

Posted by on Saturday, December 3, 2011
After seeing many people having doubt about using arrays (in Java) and how they are stored, when are they created etc. i decide to do a post on Arrays in Java, to give my readers a broader and clear view about Arrays declaration, creation and intialization.

Definition, Arrays are complex variablesthat store a group of values under a single variable name.

Declaring Arrays :

An array is imply a sequence of either objects or primitives, all of the same type and is put together under one identifier name. A specific element in an array is accessed by an index or subscript. The index of the array is in a continuous order whereas all array elements are stored at contiguous memory location.

You can declare arrays of any type, either primitive or class :

char[] s;
Point[] p; // Where Point is a class

In Java Programming language, creates a reference to the array that you can use to refer to an array. The actual memory used by the array element is allocated dynamically either by a new statement or by an array initializer.

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