How do I change the value in "Xxxxx" format even if user inputs like this "xXXxX"? Java

Question

I have a thought:(might too completed)

I wonder if I can substring(1) then use .toUpperCase() for the string
and after that use getLength() to have the length then .toLowerCase() the rest in the string

Is there a easier way to do this? So I can have the value stored in "Xxxx" format. Thank you.

For example: No matter user input the value as "hELlo" or "HEllO" , the system always store the value as "Hello". That's may explain my question.

Possible duplicate of http://stackoverflow.com/questions/1086123/string-conversion-to-title-case — declension, Feb 25 '16 at 20:59

score 1 · Accepted Answer · answered Feb 25 '16 at 20:59

I wrote a small utility for my self. It might help you. I was sure that my string would always have alphabets in it so did not care about any other characters. you might want to modify as per your needs.

int length = "yourstring".length();/// get the length of the string
        String camelCase = removeCharacters.substring(0, 1).toUpperCase();// upper case the first alphabet
        camelCase = camelCase + "yourstring".substring(1, length).toLowerCase();// lowercase all other alphabets

Why are you reinventing the wheel? Apache already comes with this out of the box, and camelCase is different from what OP asked for in his question. — hd1, Feb 25 '16 at 21:43

score 0 · Answer 2 · answered Feb 25 '16 at 20:59

0

Substring has a one-arg version and a two-arg version. The second argument is non-inclusive. So, the first bit of the string you want is

myString.subString(0, 1)

and the second bit is

myString.subString(1)

You can then call the toUpper and toLower methods on the results, and concatenate them.

answered Feb 25 '16 at 20:59

Burleigh Bear

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That may be true, but he's asking a question to parse user input. It's neither likely to be very long, nor in a critical section. I think it's safe to assume that we can optimise for development time here. :) – Burleigh Bear Feb 25 '16 at 21:11
Please see my answer for a more robust solution – hd1 Feb 25 '16 at 21:42
Thank you for noticing that. – Lenic Feb 26 '16 at 06:59

score 0 · Answer 3 · answered Feb 25 '16 at 21:01

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Yes, the Apache Commons-Lang project has a WordUtils class with a capitalize method, as in the following example:

WordUtils.capitalize("i am FINE") yields: "I Am FINE"

answered Feb 25 '16 at 21:01

hd1

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If I would like to use this method. What package should I import? I'm using blueJay, it says "org.apache.commons.lang3.text" not exist. (import org.apache.commons.lang3.text.WordUtils;) – Lenic Feb 26 '16 at 06:43
Include the commons-lang3 jar on your CLASSPATH and import org.apache.commons.lang3.text.WordUtils at the top of your file. – hd1 Feb 26 '16 at 06:49

How do I change the value in "Xxxxx" format even if user inputs like this "xXXxX"? Java

3 Answers3