VB : How can I make the use String functions

[Fielder]

Hello friends!, How are you? I just started learning the Visual Basic 6.0. So i don't know more about the this language. So I had to submit the assignment on the String Functions in college. And I want to know about what are the string functions and how they can work. I also want to know about the how they can be used in VB programs. So anyone know about the string functions and can anyone help me?

[opaper]

Hi, Visual Basic has number of built-in string functions for processing strings. In VB, most of the string functions return a string and some return a number such as the Len function that returns the length of the string, Instr and InstrRev functions that returns the character position within the string. The functions that returns strings can be coded with or without the dollar sign ($) at the end, although it is more efficient to use with the dollar sign. Hope it will help you.

[Modifier]

I suggest you to look out the following list of the string functions. They are as follows:
1. Len(string)
2. Mid$(string, start[, length])
3. Left$(string, length)
4. Right$(string, length)
5. UCase$(string)
6. LCase$(string)$(string)
7. InStr([start,] string1, string2 [, compare])
8. InStrRev(string1, string2[, start, [, compare]])
9. String$(number, character)
10. Space$(number)
11. Replace$(expression, find, replacewith[, start[, count[, compare]]])
12. StrReverse$(string)
13. LTrim$(string)
14. RTrim$(string)
15. Trim$(string)
16. Asc(string)
17. Chr$(charcode)
The above all functions makes you to perform the string operations easily.

[kelfro]

According to my opinion the following program demonstrates you the functionality of all the string functions. Write the following code in the click event of command button:

1. Private Sub cmd_Click()
2. Dim strTst As String
3. strTest = InputBox("Please enter a string:")
4. Print "Using Len:"; Tab(25); Len(strTst)
5. Print "Using Mid$:"; Tab(25); Mid$(strTst, 3, 4)
6. Print "Using Left$:"; Tab(25); Left$(strTst, 3)
7. Print "Using Right$:"; Tab(25); Right$(strTst, 2)
8. Print "Using UCase$:"; Tab(25); UCase$(strTst)
9. Print "Using LCase$:"; Tab(25); LCase$(strTst)
10. Print "Using Instr:"; Tab(25); InStr(strTst, "a")
11. Print "Using InstrRev:"; Tab(25); InStrRev(strTst, "a")
12. Print "Using LTrim$:"; Tab(25); LTrim$(strTst)
13. Print "Using RTrim$:"; Tab(25); RTrim$(strTst)
14. Print "Using Trim$:"; Tab(25); Trim$(strTst)
15. Print "Using String$ & Space$:"; Tab(25); String$(3, "*") _
16. & Space$(2) _
17. & Trim$(strTst) _
18. & Space$(2) _
19. & String$(3, 42)
20. Print "Using Replace$:"; Tab(25); Replace$(strTst, "a", "*")
21. Print "Using StrReverse$:"; Tab(25); StrReverse$(strTst)
22. Print "Using Asc:"; Tab(25); Asc(strTst)
23. End Sub

Good Day!