Relocatable VS Non- Relocatable Programming

A relocatable program may use many part of memory address in run time of a program. This type of program uses relative addressing and its address space can be change at run as requirement.

A Non-Relocatable program runs in  fix address space. Location of program data fix at the time of compilation.

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Graphics : Draw Hut Using VB.Net

 Dim myPen As New System.Drawing.Pen(System.Drawing.Color.White)
        Dim formGraphics As System.Drawing.Graphics
        formGraphics = Me.CreateGraphics()
        formGraphics.DrawLine(myPen, 300, 135, 800, 175)
        formGraphics.DrawLine(myPen, 300, 135, 175, 300)
        formGraphics.DrawLine(myPen, 300, 135, 400, 300)

Byte Code

" Middle level output of a compiler "

High level languages like (C,C++,Java,C#) are  easy to code , Programmer write code using a text editor or IDE  provide by related language compiler called source code.

Source code cannot run direct by computer it need to be transform into machine language by compiler.

Difference between Syntax and Semantic

Syntax	Symantic
Syntax is related to language grammar, i.e. in C language every statement is terminated by semicolon (;) if you missed it, then compiler will generate a syntax error (statement is missing)	Semantic is related to meaning which cannot be detected by the compiler. Wrong implementation of a logic will not produce expected output. For example, we know when the product of a number has to calculate then we must use (*) if by mistake or any other reason (+) are there then it is semantic bug.

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