Class CaseUtils
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 behavior in more detail.
- Since:
- 1.2
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Constructor Summary
Constructors Constructor Description CaseUtils()
CaseUtils
instances should NOT be constructed in standard programming. -
Method Summary
Modifier and Type Method 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 title case character and then a series of lowercase characters.
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Constructor Details
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CaseUtils
public CaseUtils()CaseUtils
instances should NOT be constructed in standard programming. Instead, the class should be used asCaseUtils.toCamelCase("foo bar", true, new char[]{'-'});
.This constructor is public to permit tools that require a JavaBean instance to operate.
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Method Details
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toCamelCase
Converts all the delimiter separated words in a String into camelCase, that is each word is made up of a title case 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 returnsnull
. 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"
- Parameters:
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 whitespace- Returns:
- camelCase of String,
null
if null String input
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