public class CaseUtils extends Object
Case manipulation operations on Strings that contain words.
This class tries to handle null input gracefully.
An exception will not be thrown for a null input.
Each method documents its behaviour in more detail.
| Constructor and Description |
|---|
CaseUtils()
CaseUtils instances should NOT be constructed in
standard programming. |
| Modifier and Type | Method and Description |
|---|---|
static String |
toCamelCase(String str,
boolean capitalizeFirstLetter,
char... delimiters)
Converts all the delimiter separated words in a String into camelCase,
that is each word is made up of a titlecase character and then a series of
lowercase characters.
|
public CaseUtils()
CaseUtils instances should NOT be constructed in
standard programming. Instead, the class should be used as
CaseUtils.toCamelCase("foo bar", true, new char[]{'-'});.
This constructor is public to permit tools that require a JavaBean instance to operate.
public static String toCamelCase(String str, boolean capitalizeFirstLetter, char... delimiters)
Converts all the delimiter separated words in a String into camelCase, that is each word is made up of a titlecase character and then a series of lowercase characters.
The delimiters represent a set of characters understood to separate words. The first non-delimiter character after a delimiter will be capitalized. The first String character may or may not be capitalized and it's determined by the user input for capitalizeFirstLetter variable.
A null input String returns null.
Capitalization uses the Unicode title case, normally equivalent to
upper case and cannot perform locale-sensitive mappings.
CaseUtils.toCamelCase(null, false) = null
CaseUtils.toCamelCase("", false, *) = ""
CaseUtils.toCamelCase(*, false, null) = *
CaseUtils.toCamelCase(*, true, new char[0]) = *
CaseUtils.toCamelCase("To.Camel.Case", false, new char[]{'.'}) = "toCamelCase"
CaseUtils.toCamelCase(" to @ Camel case", true, new char[]{'@'}) = "ToCamelCase"
CaseUtils.toCamelCase(" @to @ Camel case", false, new char[]{'@'}) = "toCamelCase"
str - the String to be converted to camelCase, may be nullcapitalizeFirstLetter - boolean that determines if the first character of first word should be title case.delimiters - set of characters to determine capitalization, null and/or empty array means whitespacenull if null String inputCopyright © 2014–2018 The Apache Software Foundation. All rights reserved.