How to capitalize the first letter of word in a string using Java?

Question

Example strings

one thousand only
two hundred
twenty
seven

How do I change the first character of a string in capital letter and not change

Answer 1

The following will give you the same consistent output regardless of the value of your inputString:

if(StringUtils.isNotBlank(inputString)) {
    inputString = StringUtils.capitalize(inputString.toLowerCase());
}