Happy Codings - Programming Code Examples

Html Css Web Design Sample Codes

CPlusPlus Programming Sample Codes

JavaScript Programming Sample Codes

C Programming Sample Codes

CSharp Programming Sample Codes

Java Programming Sample Codes

Php Programming Sample Codes

Visual Basic Programming Sample Codes

Visual Basic Programming Code Examples

Visual Basic > API and Miscellaneous Code Examples

Converting numbers



Converting numbers

* Hexadecimal to Decimal:
Sub Form_Load ()

	Dim x as String
	Dim y as Variant

	x = "fffe"
	y = CLng("&H" & x)

	If y < 0 Then y = y + 65536    ' returns 65534
	
	MsgBox y

End Sub


* Converting a string to an integer: Cal Stover

Dim SomeVariable as Integer
SomeVariable = CInt(Label2.Caption) + 100

Dim SomeVariable as Single
SomeVariable = CSng(Val(Label2.Caption) + 100)


* convert a number in Hexadecimal to Binary -chris

A very fast conversion from hex to binary can be done with a sixteen
element look-up table - a single hex digit converts to four binary
digits.  So:

Function Hex2Bin$(HexValue$)
  CONST BinTbl ="0000000100100011010001010110011110001001101010111100110111101111"
  dim X, Work$
  Work$ = ""
  For X = 1 to Len(HexValue$)
    Work$ = Work$ + Mid$(BinTbl, (Val("&h" + Mid$(HexValue$, X, 1) - 1) * 4 + 1, 4)
  Next
  Hex2Bin$ = Work$
End Function

You could also code BinTbl as an array which would eliminate one of the
Mid$() calls, but then the array would either have to be built ahead of
time or built every time you called the Hex2Bin function.  You could try
all three options and see which is faster.



Return

C Check a Number is Divisible by 5 and 13
Check whether a number is divisible by 5 and 13 or not using if else. A number is divisible by some other number if it gives 0 as remainder. To check if a number is exactly divisible by a...

C Language Coding Compare Two Strings
C program to compare two strings using loop 'Character by Character'. Comparing 2 strings Lexicographically without using string library functions. 'Input two strings' from user. Store

Calculate Sum of all Elements of an Array
Program code calculate sum of all elements of an array using pointers as arguments. The program calls a function to add the addition and passes the array argument as a pointer.

C Convert Binary to Hexadecimal Number
C Program to input binary number from user and convert to hexadecimal number system. Binary Number System is a base 2 number system. Binary number system use only two

Function Chaining Calls Using This Pointer
Example of using this 'pointer' is to return the "Reference of current object" so that you can chain "function calls", this way you can call all the functions for the current object in one go.

An Expression Tree for an Infix Expression
C++ Program to construct an Expression tree for an "Infix Expression". A binary expression tree is a specific application of a "binary tree" to evaluate certain expressions. These trees

C Print Elements of Array using Recursion
Define our Recursive Function to print array elements & say printArray(int arr[], int start, int len). The function takes three parameters where first is array to print, second is starting

Strrchr searches the string in reverse order
'StrrChr' is similar to the function 'StrChr', the only difference is that it searches the string in "Reverse Order", would have understood why we have extra r in 'strrchr', yes you guessed it