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# Combination of Capital letter, small letter, number and speacial character

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how to detect the input (Text box) that user key in the word (string) are combination of Capital letter, small letter, number and speacial character?
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Commented:
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Commented:
Can you tell me how to check whether the input is specchar , captial ,lower and number.  Thanks

Commented:
Adjusted points from 30 to 50

Commented:
i use a textbox to give user key in  string of character.  when user click command button, a algorithm will check the input textbox. so how i want to write a algorithm to check the input are combination of Capital letter, small letter, number and speacial character? example if the input is:-
1)abcde (boolean = false because small letter only.)
2)1234  (boolean = false because number only)
3)!@#\$  (boolean = false because special character only)
4)abc!@#123 (boolean = false because no capital letter)
5)!@#TonyCKX123 (boolean = true) combination of Capital letter, small letter, number and speacial character

can you give me some coding about the situation? thanks very much.

from tonyckx

Commented:
Adjusted points from 50 to 60

Commented:
How to detect a input of string contain a special character? Example

1)tonyckx!123 (Boolean = true)
2)computer (Boolean = false)
3)Nesw\$ (Boolean = true)

pls help me!

Thanks.

Commented:

Commented:

from u comment, i get sulotion to solve my problem.

Thanks very much!

from
Tonyckx

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