`tool` is the provided utility class

Main methods

method	return	desc	Demo
debug(obj)	void	Debug object, get all available methods of the object	tool.debug(tool)
newSet(items...)	Set	Create Set object	tool.newSet("ele1","ele2")
newList(items...)	List	Create List object	tool.newList("ele1","ele2")
newMap()	Map	Create Map object	tool.newMap()
parseJson(json)	Object	Parse JSON string	tool.parseJson("{"key":"value"}")
toJson(obj)	Object	Convert object to JSON string	groovy:tool.toJson([key:"value"]) js:tool.toJson({key:"value"})
prettyJson(obj)	Object	Convert object to formatted JSON string	groovy:tool.prettyJson([key:"value"]) js:tool.prettyJson({key:"value"})
headLine(str)	string	Get the first line of the string	tool.headLine("multi\nline")
capitalize(str)	string	Capitalize the first letter of the string	tool.capitalize("words")
uncapitalize(str)	string	Make the first letter of the string lowercase	tool.uncapitalize("Words")
swapCase(str)	string	Swap the case of each character in the string	tool.swapCase("WoRdS")
upperCase(str)	string	Convert the string to uppercase	tool.upperCase("words")
lowerCase(str)	string	Convert the string to lowercase	tool.lowerCase("words")
reverse(str)	string	Reverse the string	tool.reverse("sdrow")
repeat(str,repeat)	string	Repeat the specified string	tool.repeat("x",10)
isNumeric(str)	string	Determine if the string is purely numeric	tool.isNumeric("123")
toCamelCase(str)	string	Convert the string to camel case	tool.toCamelCase("some words",true)
now()	string	Get the current time in format: yyyy-MM-dd HH:mm:ss	tool.now()
now(pattern)	string	Get the current time in specified format	tool.now("yyyy-MM-dd")
today()	string	Get the current date in format: yyyy-MM-dd	tool.today()
format(time, pattern)	string	Format the timestamp	tool.format(1000000000000,"yyyy-MM-dd HH:mm:ss")

Some other methods

isAlpha

Desc：

Checks if the CharSequence contains only Unicode letters.

{@code null} will return {@code false}. An empty CharSequence (length()=0) will return {@code false}.

tool.isAlpha(null)   = false
tool.isAlpha("")     = false
tool.isAlpha("  ")   = false
tool.isAlpha("abc")  = true
tool.isAlpha("ab2c") = false
tool.isAlpha("ab-c") = false

Params：

name	type	desc
str	string

Return：

name	type	desc
	object	{@code true} if only contains letters, and is non-null

substringBefore

Desc：

Gets the substring before the first occurrence of a separator. The separator is not returned.

A {@code null} string input will return {@code null}. An empty ("") string input will return the empty string. A {@code null} separator will return the input string.

If nothing is found, the string input is returned.

tool.substringBefore(null, *)      = null
tool.substringBefore("", *)        = ""
tool.substringBefore("abc", "a")   = ""
tool.substringBefore("abcba", "b") = "a"
tool.substringBefore("abc", "c")   = "ab"
tool.substringBefore("abc", "d")   = "abc"
tool.substringBefore("abc", "")    = ""
tool.substringBefore("abc", null)  = "abc"

Params：

name	type	desc
str	string
separator	string

Return：

name	type	desc
	string	the substring before the first occurrence of the separator, {@code null} if null String input

substringAfter

Desc：

Gets the substring after the first occurrence of a separator. The separator is not returned.

A {@code null} string input will return {@code null}. An empty ("") string input will return the empty string. A {@code null} separator will return the empty string if the input string is not {@code null}.

If nothing is found, the empty string is returned.

tool.substringAfter(null, *)      = null
tool.substringAfter("", *)        = ""
tool.substringAfter(*, null)      = ""
tool.substringAfter("abc", "a")   = "bc"
tool.substringAfter("abcba", "b") = "cba"
tool.substringAfter("abc", "c")   = ""
tool.substringAfter("abc", "d")   = ""
tool.substringAfter("abc", "")    = "abc"

Params：

name	type	desc
str	string
separator	string

Return：

name	type	desc
	string	the substring after the first occurrence of the separator, {@code null} if null String input

substringBeforeLast

Desc：

Gets the substring before the last occurrence of a separator. The separator is not returned.

A {@code null} string input will return {@code null}. An empty ("") string input will return the empty string. An empty or {@code null} separator will return the input string.

If nothing is found, the string input is returned.

tool.substringBeforeLast(null, *)      = null
tool.substringBeforeLast("", *)        = ""
tool.substringBeforeLast("abcba", "b") = "abc"
tool.substringBeforeLast("abc", "c")   = "ab"
tool.substringBeforeLast("a", "a")     = ""
tool.substringBeforeLast("a", "z")     = "a"
tool.substringBeforeLast("a", null)    = "a"
tool.substringBeforeLast("a", "")      = "a"

Params：

name	type	desc
str	string
separator	string

Return：

name	type	desc
	string	the substring before the last occurrence of the separator, {@code null} if null String input

substringAfterLast

Desc：

Gets the substring after the last occurrence of a separator. The separator is not returned.

A {@code null} string input will return {@code null}. An empty ("") string input will return the empty string. An empty or {@code null} separator will return the empty string if the input string is not {@code null}.

If nothing is found, the empty string is returned.

tool.substringAfterLast(null, *)      = null
tool.substringAfterLast("", *)        = ""
tool.substringAfterLast(*, "")        = ""
tool.substringAfterLast(*, null)      = ""
tool.substringAfterLast("abc", "a")   = "bc"
tool.substringAfterLast("abcba", "b") = "a"
tool.substringAfterLast("abc", "c")   = ""
tool.substringAfterLast("a", "a")     = ""
tool.substringAfterLast("a", "z")     = ""

Params：

name	type	desc
str	string
separator	string

Return：

name	type	desc
	string	the substring after the last occurrence of the separator, {@code null} if null String input

substringBetween

Desc：

Gets the String that is nested in between two instances of the same String.

A {@code null} input String returns {@code null}. A {@code null} tag returns {@code null}.

tool.substringBetween(null, *)            = null
tool.substringBetween("", "")             = ""
tool.substringBetween("", "tag")          = null
tool.substringBetween("tagabctag", null)  = null
tool.substringBetween("tagabctag", "")    = ""
tool.substringBetween("tagabctag", "tag") = "abc"

Params：

name	type	desc
str	string
tag	string

Return：

name	type	desc
	string	the substring, {@code null} if no match

substringBetween

Desc：

Gets the String that is nested in between two Strings. Only the first match is returned.

A {@code null} input String returns {@code null}. A {@code null} open/close returns {@code null} (no match). An empty ("") open and close returns an empty string.

tool.substringBetween("wxbyz", "", "") = "b"
tool.substringBetween(null, *, *)          = null
tool.substringBetween(*, null, *)          = null
tool.substringBetween(*, *, null)          = null
tool.substringBetween("", "", "")          = ""
tool.substringBetween("", "", "]")         = null
tool.substringBetween("", "", "")        = null
tool.substringBetween("yabcz", "", "")     = ""
tool.substringBetween("yabcz", "y", "z")   = "abc"
tool.substringBetween("yabczyabcz", "y", "z")   = "abc"

Params：

name	type	desc
str	string
open	string
close	string

Return：

name	type	desc
	string	the substring, {@code null} if no match

substringsBetween

Desc：

Searches a String for substrings delimited by a start and end tag, returning all matching substrings in an array.

A {@code null} input String returns {@code null}. A {@code null} open/close returns {@code null} (no match). An empty ("") open/close returns {@code null} (no match).

tool.substringsBetween("abc", "", "") = "a","b","c"
tool.substringsBetween(null, *, *)            = null
tool.substringsBetween(*, null, *)            = null
tool.substringsBetween(*, *, null)            = null
tool.substringsBetween("", "", "")          =

Params：

name	type	desc
str	string
open	string
close	string

Return：

name	type	desc
	array	a String Array of substrings, or {@code null} if no match
	string

split

Desc：

Splits the provided text into an array, using whitespace as the separator. Whitespace is defined by Character#isWhitespace(char).

The separator is not included in the returned String array. Adjacent separators are treated as one separator. For more control over the split use the StrTokenizer class.

A {@code null} input String returns {@code null}.

tool.split(null)       = null
tool.split("")         = 
tool.split("abc def")  = "abc", "def"
tool.split("abc  def") = "abc", "def"
tool.split(" abc ")    = "abc"

Params：

name	type	desc
str	string

Return：

name	type	desc
	array	an array of parsed Strings, {@code null} if null String input
	string

split

Desc：

Splits the provided text into an array, separators specified. This is an alternative to using StringTokenizer.

The separator is not included in the returned String array. Adjacent separators are treated as one separator. For more control over the split use the StrTokenizer class.

A {@code null} input String returns {@code null}. A {@code null} separatorChars splits on whitespace.

tool.split(null, *)         = null
tool.split("", *)           = 
tool.split("abc def", null) = "abc", "def"
tool.split("abc def", " ")  = "abc", "def"
tool.split("abc  def", " ") = "abc", "def"
tool.split("ab:cd:ef", ":") = "ab", "cd", "ef"

Params：

name	type	desc
str	string
separatorChars	string

Return：

name	type	desc
	array	an array of parsed Strings, {@code null} if null String input
	string

tool is the provided utility class

Main methods

Some other methods

isAlpha

substringBefore

substringAfter

substringBeforeLast

substringAfterLast

substringBetween

substringBetween

substringsBetween

split

split

`tool` is the provided utility class