StrKit (jdkits 3.6.9 API)

java.lang.Object
- org.openingo.jdkits.lang.StrKit

所有已实现的接口:

StringPoolKit
```
public final class StrKit
extends Object
implements StringPoolKit
```
字符串工具 StrKit

作者:

Qicz

字段概要
- 从接口继承的字段 org.openingo.jdkits.lang.StringPoolKit
  AMPERSAND, AND, ASTERISK, AT, BACK_SLASH, BACKTICK, BYTES_NEW_LINE, COLON, COMMA, CRLF, DASH, DOLLAR, DOLLAR_LEFT_BRACE, DOT, DOT_CLASS, DOT_JAVA, DOT_NEWLINE, DOT_XML, DOTDOT, EMPTY, EMPTY_ARRAY, EQUALS, EXCLAMATION_MARK, FALSE, HASH, HASH_LEFT_BRACE, HAT, HTML_AMP, HTML_GT, HTML_LT, HTML_NBSP, HTML_QUOTE, ISO_8859_1, LEFT_BRACE, LEFT_BRACKET, LEFT_CHEV, LEFT_SQ_BRACKET, N, NEWLINE, NO, NULL, OFF, ON, ONE, PERCENT, PIPE, PLUS, QUESTION_MARK, QUOTE, RETURN, RIGHT_BRACE, RIGHT_BRACKET, RIGHT_CHEV, RIGHT_SQ_BRACKET, SEMICOLON, SINGLE_QUOTE, SLASH, SPACE, STAR, TAB, TILDA, TRUE, UNDERSCORE, US_ASCII, UTF_8, Y, YES, ZERO

方法概要

所有方法静态方法具体方法
限定符和类型	方法和说明
`static int[]`	`convertCharToInt(char[] c)` 将字符数组转为整型数组
`static String`	`defaultIfBlank(String str, String defaultValue)`
`static boolean`	`equals(CharSequence cs1, CharSequence cs2)` Compares two CharSequences, returning `true` if they represent equal sequences of characters.
`static boolean`	`equals(String a, String b)`
`static boolean`	`equalsAny(CharSequence string, CharSequence... searchStrings)` Compares given `string` to a CharSequences vararg of `searchStrings`, returning `true` if the `string` is equal to any of the `searchStrings`.
`static String`	`filterChinese(String string)` 过滤掉中文
`static String`	`firstCharToLowerCase(String str)` 首字母变小写
`static String`	`firstCharToUpperCase(String str)` 首字母变大写
`static String`	`getRandomUUID()`
`static boolean`	`hasIllegalChar(String string)` 验证字符串内容是否包含下列非法字符 `~!
`static boolean`	`isBlank(String str)` 字符串为 null 或者内部字符全部为 ' ' '\t' '\n' '\r' 这四类字符时返回 true
`static boolean`	`isChinese(char c)` 判定输入的是否是汉字
`static boolean`	`isChinese(String string)` 校验String是否全是中文
`static boolean`	`isChineseChar(char c)` 校验一个字符是否是汉字
`static boolean`	`isContainChinese(String str)` 判断字符串中是否包含中文不能校验是否为中文标点符号
`static boolean`	`isIllegalChar(char c)` 验证字符内容是否包含下列非法字符 `~!
`static boolean`	`isWord(char c)` 校验某个字符是否是a-z、A-Z、_、0-9
`static String`	`join(List<String> list, String separator)`
`static String`	`join(String[] stringArray)`
`static String`	`join(String[] stringArray, String separator)`
`static boolean`	`notBlank(String... strings)`
`static boolean`	`notBlank(String str)`
`static boolean`	`notNull(Object... paras)`
`static boolean`	`slowEquals(String a, String b)`
`static String`	`toCamelCase(String stringWithUnderline)`
`static Double`	`toDouble(String obj)`
`static Float`	`toFloat(String obj)`
`static Integer`	`toInteger(String obj)`
`static Long`	`toLong(String obj)`

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

方法详细资料

firstCharToLowerCase

public static String firstCharToLowerCase(String str)

首字母变小写

firstCharToUpperCase

public static String firstCharToUpperCase(String str)

首字母变大写

isBlank
```
public static boolean isBlank(String str)
```
字符串为 null 或者内部字符全部为 ' ' '\t' '\n' '\r' 这四类字符时返回 true

notBlank

public static boolean notBlank(String str)

notBlank

public static boolean notBlank(String... strings)

notNull

public static boolean notNull(Object... paras)

defaultIfBlank

public static String defaultIfBlank(String str,
                                    String defaultValue)

toCamelCase

public static String toCamelCase(String stringWithUnderline)

join

public static String join(String[] stringArray)

join

public static String join(String[] stringArray,
                          String separator)

join

public static String join(List<String> list,
                          String separator)

slowEquals

public static boolean slowEquals(String a,
                                 String b)

equals

public static boolean equals(String a,
                             String b)

getRandomUUID
```
public static String getRandomUUID()
```

toInteger

public static Integer toInteger(String obj)

toLong

public static Long toLong(String obj)

toDouble

public static Double toDouble(String obj)

toFloat

public static Float toFloat(String obj)

equalsAny

public static boolean equalsAny(CharSequence string,
                                CharSequence... searchStrings)

Compares given string to a CharSequences vararg of searchStrings, returning true if the string is equal to any of the searchStrings.

 StringUtils.equalsAny(null, (CharSequence[]) null) = false
 StringUtils.equalsAny(null, null, null)    = true
 StringUtils.equalsAny(null, "abc", "def")  = false
 StringUtils.equalsAny("abc", null, "def")  = false
 StringUtils.equalsAny("abc", "abc", "def") = true
 StringUtils.equalsAny("abc", "ABC", "DEF") = false

参数:: string - to compare, may be null.; searchStrings - a vararg of strings, may be null.
返回:: true if the string is equal (case-sensitive) to any other element of searchStrings; false if searchStrings is null or contains no matches.
从以下版本开始:: 3.5

equals
```
public static boolean equals(CharSequence cs1,
                             CharSequence cs2)
```
Compares two CharSequences, returning true if they represent equal sequences of characters.

nulls are handled without exceptions. Two null references are considered to be equal. The comparison is case sensitive.
```
 StringUtils.equals(null, null)   = true
 StringUtils.equals(null, "abc")  = false
 StringUtils.equals("abc", null)  = false
 StringUtils.equals("abc", "abc") = true
 StringUtils.equals("abc", "ABC") = false
 
```
参数:

cs1 - the first CharSequence, may be null

cs2 - the second CharSequence, may be null

返回:

true if the CharSequences are equal (case-sensitive), or both null

从以下版本开始:

3.0 Changed signature from equals(String, String) to equals(CharSequence, CharSequence)

另请参阅:

Object.equals(Object)

convertCharToInt

public static int[] convertCharToInt(char[] c)
                              throws NumberFormatException

将字符数组转为整型数组

参数:: c -
抛出:: NumberFormatException

isContainChinese
```
public static boolean isContainChinese(String str)
```
判断字符串中是否包含中文不能校验是否为中文标点符号

参数:

str - 待校验字符串

返回:

是否为中文

filterChinese
```
public static String filterChinese(String string)
```
过滤掉中文

参数:

string - 待过滤中文的字符串

返回:

过滤掉中文后字符串

isChineseChar
```
public static boolean isChineseChar(char c)
```
校验一个字符是否是汉字

参数:

c - 被校验的字符

返回:

true代表是汉字

hasIllegalChar
```
public static boolean hasIllegalChar(String string)
```
验证字符串内容是否包含下列非法字符
`~!#%^&*=+\\|{};:'\",<>/?○●★☆☉♀♂※¤╬の〆

参数:

string - 字符串内容

返回:

true包含，false不包含

isIllegalChar
```
public static boolean isIllegalChar(char c)
```
验证字符内容是否包含下列非法字符
`~!#%^&*=+\\|{};:'\",<>/?○●★☆☉♀♂※¤╬の〆

参数:

c - 字符

返回:

true包含，false不包含

isWord
```
public static boolean isWord(char c)
```
校验某个字符是否是a-z、A-Z、_、0-9

参数:

c - 被校验的字符

返回:

true代表符合条件

isChinese
```
public static boolean isChinese(char c)
```
判定输入的是否是汉字

参数:

c - 被校验的字符

返回:

true代表是汉字

isChinese
```
public static boolean isChinese(String string)
```
校验String是否全是中文

参数:

string - 被校验的字符串

返回:

true代表全是汉字

类 StrKit

字段概要

从接口继承的字段 org.openingo.jdkits.lang.StringPoolKit

方法概要

从类继承的方法 java.lang.Object

方法详细资料

firstCharToLowerCase

firstCharToUpperCase

isBlank

notBlank

notBlank

notNull

defaultIfBlank

toCamelCase

join

join

join

slowEquals

equals

getRandomUUID

toInteger

toLong

toDouble

toFloat

equalsAny

equals

convertCharToInt

isContainChinese

filterChinese

isChineseChar

hasIllegalChar

isIllegalChar

isWord

isChinese

isChinese