StringUtils (wecom-common 1.2.6 API)

java.lang.Object
- cn.felord.utils.StringUtils

```
public abstract class StringUtils
extends Object
```
Miscellaneous String utility methods.
Mainly for internal use within the framework; consider Apache's Commons Lang for a more comprehensive suite of String utilities.
This class delivers some simple functionality that should really be provided by the core Java String and StringBuilder classes. It also provides easy-to-use methods to convert between delimited strings, such as CSV strings, and collections and arrays.

Since:

16 April 2001

Author:

Rod Johnson, Juergen Hoeller, Keith Donald, Rob Harrop, Rick Evans, Arjen Poutsma, Sam Brannen, Brian Clozel

Field Summary

Fields
Modifier and Type Field and Description

private static char EXTENSION_SEPARATOR

private static char FOLDER_SEPARATOR_CHAR

Fields
Modifier and Type	Field and Description
`private static char`	`EXTENSION_SEPARATOR`
`private static char`	`FOLDER_SEPARATOR_CHAR`

Constructor Summary

Constructors
Constructor and Description

StringUtils()

Constructors
Constructor and Description
`StringUtils()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static String`	`capitalize(String str)` Capitalize string.
`private static String`	`changeFirstCharacterCase(String str, boolean capitalize)`
`private static boolean`	`containsText(CharSequence str)`
`static boolean`	`containsWhitespace(CharSequence str)` Contains whitespace boolean.
`static boolean`	`containsWhitespace(String str)` Contains whitespace boolean.
`static int`	`countOccurrencesOf(String str, String sub)` Count occurrences of int.
`static String`	`delete(String inString, String pattern)` Delete string.
`static String`	`deleteAny(String inString, String charsToDelete)` Delete any string.
`static boolean`	`endsWithIgnoreCase(String str, String suffix)` Ends with ignore case boolean.
`static String`	`getFilename(String path)` Gets filename.
`static String`	`getFilenameExtension(String path)` Gets filename extension.
`static boolean`	`hasLength(CharSequence str)` Has length boolean.
`static boolean`	`hasLength(String str)` Check that the given `String` is neither `null` nor of length 0.
`static boolean`	`hasNoText(String str)` Has no text boolean.
`static boolean`	`hasText(CharSequence str)` Has text boolean.
`static boolean`	`hasText(String str)` Has text boolean.
`static boolean`	`matchesCharacter(String str, char singleCharacter)` Matches character boolean.
`static String`	`quote(String str)` Quote string.
`static Object`	`quoteIfString(Object obj)` Quote if string object.
`static String`	`replace(String inString, String oldPattern, String newPattern)` Replace string.
`static boolean`	`startsWithIgnoreCase(String str, String prefix)` Starts with ignore case boolean.
`static String`	`stripFilenameExtension(String path)` Strip filename extension string.
`static boolean`	`substringMatch(CharSequence str, int index, CharSequence substring)` Substring match boolean.
`static CharSequence`	`trimAllWhitespace(CharSequence text)` Trim all whitespace char sequence.
`static String`	`trimAllWhitespace(String str)` Trim all whitespace string.
`static String`	`trimLeadingCharacter(String str, char leadingCharacter)` Trim leading character string.
`static String`	`trimLeadingWhitespace(String str)` Trim leading whitespace string.
`static String`	`trimTrailingCharacter(String str, char trailingCharacter)` Trim trailing character string.
`static String`	`trimTrailingWhitespace(String str)` Trim trailing whitespace string.
`static String`	`trimWhitespace(String str)` Trim whitespace string.
`static String`	`uncapitalize(String str)` Uncapitalize string.
`static String`	`unqualify(String qualifiedName)` Unqualify string.
`static String`	`unqualify(String qualifiedName, char separator)` Unqualify string.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - FOLDER_SEPARATOR_CHAR
```
private static final char FOLDER_SEPARATOR_CHAR
```
    See Also:
    
    Constant Field Values
  - EXTENSION_SEPARATOR
```
private static final char EXTENSION_SEPARATOR
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - StringUtils
```
public StringUtils()
```
- Method Detail
  - hasLength
```
public static boolean hasLength(CharSequence str)
```
    Has length boolean.
    
    Parameters:
    
    str - the str
    
    Returns:
    
    the boolean
  - hasLength
```
public static boolean hasLength(String str)
```
    Check that the given String is neither null nor of length 0.
    Note: this method returns true for a String that purely consists of whitespace.
    
    Parameters:
    
    str - the String to check (may be null)
    
    Returns:
    
    true if the String is not null and has length
    
    See Also:
    
    #hasLength(CharSequence)#hasLength(CharSequence)#hasLength(CharSequence)#hasLength(CharSequence)#hasLength(CharSequence), #hasText(String)#hasText(String)#hasText(String)#hasText(String)#hasText(String)
  - hasText
```
public static boolean hasText(CharSequence str)
```
    Has text boolean.
    
    Parameters:
    
    str - the str
    
    Returns:
    
    the boolean
  - hasText
```
public static boolean hasText(String str)
```
    Has text boolean.
    
    Parameters:
    
    str - the str
    
    Returns:
    
    the boolean
  - hasNoText
```
public static boolean hasNoText(String str)
```
    Has no text boolean.
    
    Parameters:
    
    str - the str
    
    Returns:
    
    the boolean
  - containsText
```
private static boolean containsText(CharSequence str)
```
  - containsWhitespace
```
public static boolean containsWhitespace(CharSequence str)
```
    Contains whitespace boolean.
    
    Parameters:
    
    str - the str
    
    Returns:
    
    the boolean
  - containsWhitespace
```
public static boolean containsWhitespace(String str)
```
    Contains whitespace boolean.
    
    Parameters:
    
    str - the str
    
    Returns:
    
    the boolean
  - trimWhitespace
```
public static String trimWhitespace(String str)
```
    Trim whitespace string.
    
    Parameters:
    
    str - the str
    
    Returns:
    
    the string
  - trimAllWhitespace
```
public static CharSequence trimAllWhitespace(CharSequence text)
```
    Trim all whitespace char sequence.
    
    Parameters:
    
    text - the text
    
    Returns:
    
    the char sequence
  - trimAllWhitespace
```
public static String trimAllWhitespace(String str)
```
    Trim all whitespace string.
    
    Parameters:
    
    str - the str
    
    Returns:
    
    the string
  - trimLeadingWhitespace
```
public static String trimLeadingWhitespace(String str)
```
    Trim leading whitespace string.
    
    Parameters:
    
    str - the str
    
    Returns:
    
    the string
  - trimTrailingWhitespace
```
public static String trimTrailingWhitespace(String str)
```
    Trim trailing whitespace string.
    
    Parameters:
    
    str - the str
    
    Returns:
    
    the string
  - trimLeadingCharacter
```
public static String trimLeadingCharacter(String str,
                                          char leadingCharacter)
```
    Trim leading character string.
    
    Parameters:
    
    str - the str
    
    leadingCharacter - the leading character
    
    Returns:
    
    the string
  - trimTrailingCharacter
```
public static String trimTrailingCharacter(String str,
                                           char trailingCharacter)
```
    Trim trailing character string.
    
    Parameters:
    
    str - the str
    
    trailingCharacter - the trailing character
    
    Returns:
    
    the string
  - matchesCharacter
```
public static boolean matchesCharacter(String str,
                                       char singleCharacter)
```
    Matches character boolean.
    
    Parameters:
    
    str - the str
    
    singleCharacter - the single character
    
    Returns:
    
    the boolean
  - startsWithIgnoreCase
```
public static boolean startsWithIgnoreCase(String str,
                                           String prefix)
```
    Starts with ignore case boolean.
    
    Parameters:
    
    str - the str
    
    prefix - the prefix
    
    Returns:
    
    the boolean
  - endsWithIgnoreCase
```
public static boolean endsWithIgnoreCase(String str,
                                         String suffix)
```
    Ends with ignore case boolean.
    
    Parameters:
    
    str - the str
    
    suffix - the suffix
    
    Returns:
    
    the boolean
  - substringMatch
```
public static boolean substringMatch(CharSequence str,
                                     int index,
                                     CharSequence substring)
```
    Substring match boolean.
    
    Parameters:
    
    str - the str
    
    index - the index
    
    substring - the substring
    
    Returns:
    
    the boolean
  - countOccurrencesOf
```
public static int countOccurrencesOf(String str,
                                     String sub)
```
    Count occurrences of int.
    
    Parameters:
    
    str - the str
    
    sub - the sub
    
    Returns:
    
    the int
  - replace
```
public static String replace(String inString,
                             String oldPattern,
                             String newPattern)
```
    Replace string.
    
    Parameters:
    
    inString - the in string
    
    oldPattern - the old pattern
    
    newPattern - the new pattern
    
    Returns:
    
    the string
  - delete
```
public static String delete(String inString,
                            String pattern)
```
    Delete string.
    
    Parameters:
    
    inString - the in string
    
    pattern - the pattern
    
    Returns:
    
    the string
  - deleteAny
```
public static String deleteAny(String inString,
                               String charsToDelete)
```
    Delete any string.
    
    Parameters:
    
    inString - the in string
    
    charsToDelete - the chars to delete
    
    Returns:
    
    the string
  - quote
```
public static String quote(String str)
```
    Quote string.
    
    Parameters:
    
    str - the str
    
    Returns:
    
    the string
  - quoteIfString
```
public static Object quoteIfString(Object obj)
```
    Quote if string object.
    
    Parameters:
    
    obj - the obj
    
    Returns:
    
    the object
  - unqualify
```
public static String unqualify(String qualifiedName)
```
    Unqualify string.
    
    Parameters:
    
    qualifiedName - the qualified name
    
    Returns:
    
    the string
  - unqualify
```
public static String unqualify(String qualifiedName,
                               char separator)
```
    Unqualify string.
    
    Parameters:
    
    qualifiedName - the qualified name
    
    separator - the separator
    
    Returns:
    
    the string
  - capitalize
```
public static String capitalize(String str)
```
    Capitalize string.
    
    Parameters:
    
    str - the str
    
    Returns:
    
    the string
  - uncapitalize
```
public static String uncapitalize(String str)
```
    Uncapitalize string.
    
    Parameters:
    
    str - the str
    
    Returns:
    
    the string
  - changeFirstCharacterCase
```
private static String changeFirstCharacterCase(String str,
                                               boolean capitalize)
```
  - getFilename
```
public static String getFilename(String path)
```
    Gets filename.
    
    Parameters:
    
    path - the path
    
    Returns:
    
    the filename
  - getFilenameExtension
```
public static String getFilenameExtension(String path)
```
    Gets filename extension.
    
    Parameters:
    
    path - the path
    
    Returns:
    
    the filename extension
  - stripFilenameExtension
```
public static String stripFilenameExtension(String path)
```
    Strip filename extension string.
    
    Parameters:
    
    path - the path
    
    Returns:
    
    the string

Class StringUtils

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

FOLDER_SEPARATOR_CHAR

EXTENSION_SEPARATOR

Constructor Detail

StringUtils

Method Detail

hasLength

hasLength

hasText

hasText

hasNoText

containsText

containsWhitespace

containsWhitespace

trimWhitespace

trimAllWhitespace

trimAllWhitespace

trimLeadingWhitespace

trimTrailingWhitespace

trimLeadingCharacter

trimTrailingCharacter

matchesCharacter

startsWithIgnoreCase

endsWithIgnoreCase

substringMatch

countOccurrencesOf

replace

delete

deleteAny

quote

quoteIfString

unqualify

unqualify

capitalize

uncapitalize

changeFirstCharacterCase

getFilename

getFilenameExtension

stripFilenameExtension