C++11 tutorial by Razsoft education

  • Introduction to C++.
  • Handling data in C++
  • Basic input / output in C++
  • Compound data type in C++
  • Operators in C++
  • Looping in C++

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Computer graphics with java an introduction | Razsoft Education

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               Graphics is a way to represent visual element in application. Java provided us rich set of methods and class through Java2D API to deal with the graphics in java platform and application. Using AWT methods to draw and manipulated GUI interface.                Java2D comes with rich set of function to manipulate images, text, font, color, etc. It has capability to draw basic geometric shapes and curves. Java media framework allows us to work with media files and create animations. Java media framework depends upon Java2D framework for rendering purposes.                For basic drawing operation every java AWT component which is visible to screen contains a reference to graphics object, which is an object of abstract class Graphics. It comes with many useful methods to draw eleme...
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Drawing shapes using java graphics API | Razsoft Education

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Shapes in java  To draw shape in java, It provides shape interface. Any class that implement the shape interface will be used to draw shapes. To draw shapes we need to pass object of the class which implements the shape interface in the draw() of fill() method of graphics object. Outline of shape is known as path.      Java has already a list of class that implement the Shape interface to draw some basic geometrical shapes. Which is defined in to two main category Rectangular shape and non Rectangular shape. We can also implement shape interface in our own class to create custom shapes.   Rectangular Shape  Rectangular shapes are those shape which Extends the RectangularShape class. The class doesn't define any geometrical shape but it provide a rectangular frame to all the class that extend it. Here is list of some class that extends the RectengularShape class                      ...
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Java 2D Rendering Pipeline | Rendering in java | Razsoft Education

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What is Rendering?                      When we draw anything on screen, it involves many step by step process to calculate where and how to produce each pixel on screen, These step by step process is known as Rendering Pipeline and process is known as Rendering .      In this process we first define our basic shapes also known as primitives(such as text, image and geometric shapes). Then these primitives' as passed to a rendering engine like Graphics2D, That perform the step by step process of rendering pipeline. Then output image is given to an output device like screen, printer or an image stored in memory.  Apart from rendering engine Graphics2D also work as a surface to draw primitives on it. Each time we draw a new primitive on surface it added on the surface. Which we can draw on a output device.  Graphics2D States :-  Graphics2D work as a state machine to draw the primitives. It...
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History of C++ | Razsoft Education

 History of C++     C++ programming language was created by Bajarne Stroustrup in 1979. To support the Object Oriented Programming (OOP) approach while remaining as fast and compatible as C. Initially it’s called “C with classes”. Because it carries every feature of C but added OOP feature to it. Later in 1983 it’s renamed as C++. By seeing its popularity ANSI and ISO started standardizing it and created C++98, first international version of C++. It has feature of template for generic programming. In 2017, C++17 come out which added support for multithreading. At the time writing this blog C++20 is current version.  
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Integer data type in C++ programming language | Razsoft education

 Integer data type in C++ Integers are numbers with no fractional part. In C++ we represent integers in various type according to how big value they can store or what type of integer value they can store. All integer types has signed and unsigned type in C++. Signed type integer can store both positive and negative integer values. Unsigned type integer can store only positive values. 
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What is Object Oriented Programming | Razsoft Education

 Object Oriented Programming : Object Oriented Programming (OOP’s) is a modern programming approach in which program is thinks as of set of objects communicates to each other to get a work done. Like in real life we have multiple objects that depend on each other for get a work done.             So, the idea was to design a data that has data and function that perform operation on that data. In C++ classes are the special data type that contains data called data member and function that perform operation on that data called member function. An object is instance of class.   Also Read about :    What is procedural programming paradigm ?   What is Structured programming paradigm ?    
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Different data types in C++ | Razsoft Education

 Data types in C++ : As we know computer is a data oriented machine so, to work with data it need to store that different programming language handles it differently. But C++ programming language provide us more control on data. A data type is to tell the compiler that how much memory a variable or constant going to take and what is type of data stored inside them. There are mainly two types of data group in C++. Fundamental data types :   They are built in data type provided by C++ programming language to work with simple form of data like integer, floating points and characters inside the program. Compound data types :   They are not built in C++. Where as programmer's define them itself when ever needed according to their use. They are defined with the use of fundamental data types, So, it's often refer as user define data type of derived data type. For example array, class, structures, etc. Learn more about  Fundamental data types :     1. Integers ...
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"climits" Header file in c++ programming language | Razsoft Education

 <climits> header file climits is a header file borrowed from c programing language limit.h header file. The header file is used to know the maximum and minimum value an integer data type can hold. The header file is implemented in C++ in standard namespace.  Here is the explanation of Macros used in climits header file char type :     CHAR_BIT - The macro represent number of bit in a  character.     CHAR_MIN -  For the minimum value a char can hold.      CHAR_MAX -  For the maximum value a char can hold.        CHAR_MIN -  For the minimum value a char can hold.     S CHAR_MIN -  For the minimum value a signed char can hold.     S CHAR_MAX -  For the maximum value a char can hold.     UCHAR_MAX - For the minimum value of unsigned char. short type :     SHRT_MIN - For the minimum value a short can hold.      SHRT_MAX - For the maximu...
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What is structured programming paradigm | Razsoft education

 Structured programming                 Structured programming is a programming paradigm in which we use some predefine keywords to control the flow (branching) of the program. Unlike in procedural language we have goto keyword to control flow. In structured program we have for, while, do while if , else, these type of keywords to control the flow better and also have blocks to maintain the scope of the variable or to group a set of related code. These blocks are formed by curly braces ( { } ) in C++.
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Coordinate system of java | Graphics2D coordinate system | Razsoft Education

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   As we all know java follows WORA(Write Once Run Anywhere) principle. So, in this process it may encounter many different size and type of output devices. To give the same user experience to users across all devices java manages two different coordinate system.     1. User space coordinate system    2. Device space coordinate system 1. User space coordinate system :- It's a device independent coordinate system also called logical coordinate system. Which is used by developers to draw and set elements in application. It's relative to the application. In java to do all the graphical drawing we use this coordinate system.            In user space top left corner is 0,0 position. The x- coordinate goes horizontally from left to right, and y-coordinate moves from top to bottom. And a point is defined by first x - coordinate followed by y- coordinate.  2. Device space coordinate system :- It's a device depend...
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