I have a String variable called password.
How do I check the following?
(1) String is all in uppercase.
(2) Sting is all in lowercase
(3) If the string has any numeric values
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String password check if is in uppercase, lowercase and has any numeric values?
I have a String variable called password.
How do I check the following?
(1) String is all in uppercase.
(2) Sting is all in lowercase
(3) If the string has any numeric values
Related threads:
Re: String password check if is in uppercase, lowercase and has any numeric values?
There are many different ways. Here's one:
Lesson: Regular Expressions (The Java™ Tutorials > Essential Classes)
Re: String password check if is in uppercase, lowercase and has any numeric values?
Having read copeg suggested lesson on Regular Expressions I am even more confused. The lessons makes little sense to me and seems very complicated. Also having read it I cannot instanly see the solution.
Re: String password check if is in uppercase, lowercase and has any numeric values?
A simpler way would be to look at the characters one by one using a String class method to get the character. Then use some of the Character class's methods to test the characters.
Another technique: change the String to all one case and compare it to the original.
If you don't understand my answer, don't ignore it, ask a question.
Re: String password check if is in uppercase, lowercase and has any numeric values?
Norm - thank you
I will give this a go and let you know.
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