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how do u check if the first letter is uppercase

3 replies on 1 page. Most recent reply: Oct 11, 2002 1:35 AM by Ian Phillips

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Cshah

Posts: 16
Nickname: tkc204
Registered: Oct, 2002

how do u check if the first letter is uppercase

Posted: Oct 7, 2002 11:16 PM

How do you check if the first letter is uppercase in a string. is there a function i can call.

siddhartha

Posts: 15
Nickname: saddysan
Registered: Jul, 2002

Re: how do u check if the first letter is uppercase

Posted: Oct 8, 2002 11:10 AM

just extract the first character and compare ist ascii value from the range of Uppercase Ascii characters, if it is in the range it is in uppercase otherwise not. If you need more help tell me

saddysan

Don Hill

Posts: 70
Nickname: ssswdon
Registered: Jul, 2002

Re: how do u check if the first letter is uppercase

Posted: Oct 8, 2002 11:22 AM

well thats the hard way, why not just use the API,
get the first letter as a char

char chr = myString.charAt(0);
boolean upper = Character.isUpperCase( chr);

HTH

Ian Phillips

Posts: 8
Nickname: ianp
Registered: Oct, 2002

Not by comparing ASCII values!

Posted: Oct 11, 2002 1:35 AM

This isn't just more work, it's wrong since it doesn't take into account I18N considerations. As Don says, you have to use the isUpperCase method to check this.

An example, your test would result in an incorrect result for the string "\u0916" (the letter KHA in Devangari).

Yours,
Ian.

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