String Operations in Visual Basic
VB has numerous built-in string functions for processing strings. Most VB string-handling functions return a string, although some return a number such as the Len function which returns the length of a string and functions like Instr and InstrRev which return a character position within the string.
Introduction
VB has numerous built-in string functions for processing strings. Most VB string-handling functions return a string, although some return a number such as the Len function which returns the length of a string and functions like Instr and InstrRev which return a character position within the string. The functions that return strings can be coded with or without the dollar sign ($) at the end, although it is more efficient to use the version with the dollar sign. The String class of the .NET framework provides many built-in methods to facilitate the comparison and manipulation of strings. It is now a trivial matter to get data about a string or to create new strings by manipulating current strings. The Visual Basic .NET language also has inherent methods that duplicate many of these functionalists.
String operations in VB
- Comparison : Used to compare two string.
- Concatenation : Used to add two string.
- Containment : To find out if one string is a substring of another use the InStr function.
- Indexing and Substrings : Strings can be used almost as if they were lists of characters.
- String constants : String constants can be declared like any other constant.
Example : Simple example comparison of string in VB.
Code
Option Explicit
Dim strTom as String
Dim strTom2 as String
strTom = "manish"
strTom2 = "manish"
If StrComp(strTom, strTom2) = 0 Then
Debug.Print "The strings are the same.