CharUtil (Jodd API Documentation)

java.lang.Object
- jodd.util.CharUtil

```
public class CharUtil
extends java.lang.Object
```
Various character and character sequence utilities, including char[] - byte[] conversions.

Field Summary

Fields
Modifier and Type Field and Description

static char[] HEX_CHARS

Fields
Modifier and Type	Field and Description
`static char[]`	`HEX_CHARS`

Constructor Summary

Constructors
Constructor and Description

CharUtil()

Constructors
Constructor and Description
`CharUtil()`

Method Summary

Methods
Modifier and Type	Method and Description
`static boolean`	`equalsOne(char c, char[] match)` Match if one character equals to any of the given character.
`static int`	`findFirstDiff(char[] source, int index, char match)` Finds index of the first character in given array the differs from the given set of characters.
`static int`	`findFirstDiff(char[] source, int index, char[] match)` Finds index of the first character in given array the differs from the given set of characters.
`static int`	`findFirstEqual(char[] source, int index, char match)` Finds index of the first character in given array the matches any from the given set of characters.
`static int`	`findFirstEqual(char[] source, int index, char[] match)` Finds index of the first character in given array the matches any from the given set of characters.
`static int`	`hex2int(char c)` Converts hex char to int value.
`static char`	`int2hex(int i)` Converts integer digit to heck char.
`static boolean`	`isAlpha(char c)` Indicates whether the given character is in the `ALPHA` set.
`static boolean`	`isAlphaOrDigit(char c)`
`static boolean`	`isDigit(char c)` Indicates whether the given character is in the `DIGIT` set.
`static boolean`	`isGenericDelimiter(int c)` Indicates whether the given character is in the gen-delims set.
`static boolean`	`isHexDigit(char c)` Indicates whether the given character is the hexadecimal digit.
`static boolean`	`isLowercaseAlpha(char c)` Returns `true` if specified character is lowercase ASCII.
`protected static boolean`	`isPchar(char c)` Indicates whether the given character is in the pchar set.
`static boolean`	`isPropertyNameChar(char c)`
`protected static boolean`	`isReserved(char c)` Indicates whether the given character is in the reserved set.
`protected static boolean`	`isSubDelimiter(int c)` Indicates whether the given character is in the sub-delims set.
`protected static boolean`	`isUnreserved(char c)` Indicates whether the given character is in the unreserved set.
`static boolean`	`isUppercaseAlpha(char c)` Returns `true` if specified character is uppercase ASCII.
`static boolean`	`isWhitespace(char c)` Returns `true` if character is a white space (`<= ' '`).
`static boolean`	`isWordChar(char c)`
`static int`	`toAscii(char c)` Returns ASCII value of a char.
`static byte[]`	`toAsciiByteArray(char[] carr)` Converts char array into `ASCII` array.
`static byte[]`	`toAsciiByteArray(java.lang.CharSequence charSequence)` Converts char sequence into ASCII byte array.
`static byte[]`	`toByteArray(char[] carr)` Converts char array to byte array using default Jodd encoding.
`static byte[]`	`toByteArray(char[] carr, java.lang.String charset)` Converts char array to byte array using provided encoding.
`static char`	`toChar(byte b)` Converts (signed) byte to (unsigned) char.
`static char[]`	`toCharArray(byte[] barr)` Converts byte array of default Jodd encoding to char array.
`static char[]`	`toCharArray(byte[] barr, java.lang.String charset)` Converts byte array of specific encoding to char array.
`static char`	`toLowerAscii(char c)` Lowers uppercase ASCII char.
`static byte[]`	`toRawByteArray(char[] carr)` Converts char array into byte array by replacing each character with two bytes.
`static char[]`	`toRawCharArray(byte[] barr)`
`static byte[]`	`toSimpleByteArray(char[] carr)` Converts char array into byte array by stripping the high byte of each character.
`static byte[]`	`toSimpleByteArray(java.lang.CharSequence charSequence)` Converts char sequence into byte array.
`static char[]`	`toSimpleCharArray(byte[] barr)` Converts byte array to char array by simply extending bytes to chars.
`static char`	`toUpperAscii(char c)` Uppers lowercase ASCII char.

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

- Field Detail
  - HEX_CHARS
```
public static final char[] HEX_CHARS
```
- Constructor Detail
  - CharUtil
```
public CharUtil()
```
- Method Detail
  - toChar
```
public static char toChar(byte b)
```
    Converts (signed) byte to (unsigned) char.
  - toSimpleByteArray
```
public static byte[] toSimpleByteArray(char[] carr)
```
    Converts char array into byte array by stripping the high byte of each character.
  - toSimpleByteArray
```
public static byte[] toSimpleByteArray(java.lang.CharSequence charSequence)
```
    Converts char sequence into byte array.
    
    See Also:
    toSimpleByteArray(char[])
  - toSimpleCharArray
```
public static char[] toSimpleCharArray(byte[] barr)
```
    Converts byte array to char array by simply extending bytes to chars.
  - toAscii
```
public static int toAscii(char c)
```
    Returns ASCII value of a char. In case of overload, 0x3F is returned.
  - toAsciiByteArray
```
public static byte[] toAsciiByteArray(char[] carr)
```
    Converts char array into ASCII array.
  - toAsciiByteArray
```
public static byte[] toAsciiByteArray(java.lang.CharSequence charSequence)
```
    Converts char sequence into ASCII byte array.
  - toRawByteArray
```
public static byte[] toRawByteArray(char[] carr)
```
    Converts char array into byte array by replacing each character with two bytes.
  - toRawCharArray
```
public static char[] toRawCharArray(byte[] barr)
```
  - toByteArray
```
public static byte[] toByteArray(char[] carr)
                          throws java.io.UnsupportedEncodingException
```
    Converts char array to byte array using default Jodd encoding.
    
    Throws:
    
    java.io.UnsupportedEncodingException
  - toByteArray
```
public static byte[] toByteArray(char[] carr,
                 java.lang.String charset)
                          throws java.io.UnsupportedEncodingException
```
    Converts char array to byte array using provided encoding.
    
    Throws:
    
    java.io.UnsupportedEncodingException
  - toCharArray
```
public static char[] toCharArray(byte[] barr)
                          throws java.io.UnsupportedEncodingException
```
    Converts byte array of default Jodd encoding to char array.
    
    Throws:
    
    java.io.UnsupportedEncodingException
  - toCharArray
```
public static char[] toCharArray(byte[] barr,
                 java.lang.String charset)
                          throws java.io.UnsupportedEncodingException
```
    Converts byte array of specific encoding to char array.
    
    Throws:
    
    java.io.UnsupportedEncodingException
  - equalsOne
```
public static boolean equalsOne(char c,
                char[] match)
```
    Match if one character equals to any of the given character.
    
    Returns:
    true if characters match any character from given array, otherwise false
  - findFirstEqual
```
public static int findFirstEqual(char[] source,
                 int index,
                 char[] match)
```
    Finds index of the first character in given array the matches any from the given set of characters.
    
    Returns:
    index of matched character or -1
  - findFirstEqual
```
public static int findFirstEqual(char[] source,
                 int index,
                 char match)
```
    Finds index of the first character in given array the matches any from the given set of characters.
    
    Returns:
    index of matched character or -1
  - findFirstDiff
```
public static int findFirstDiff(char[] source,
                int index,
                char[] match)
```
    Finds index of the first character in given array the differs from the given set of characters.
    
    Returns:
    index of matched character or -1
  - findFirstDiff
```
public static int findFirstDiff(char[] source,
                int index,
                char match)
```
    Finds index of the first character in given array the differs from the given set of characters.
    
    Returns:
    index of matched character or -1
  - isWhitespace
```
public static boolean isWhitespace(char c)
```
    Returns true if character is a white space (<= ' '). White space definition is taken from String class (see: trim()).
  - isLowercaseAlpha
```
public static boolean isLowercaseAlpha(char c)
```
    Returns true if specified character is lowercase ASCII. If user uses only ASCIIs, it is much much faster.
  - isUppercaseAlpha
```
public static boolean isUppercaseAlpha(char c)
```
    Returns true if specified character is uppercase ASCII. If user uses only ASCIIs, it is much much faster.
  - isAlphaOrDigit
```
public static boolean isAlphaOrDigit(char c)
```
  - isWordChar
```
public static boolean isWordChar(char c)
```
  - isPropertyNameChar
```
public static boolean isPropertyNameChar(char c)
```
  - isAlpha
```
public static boolean isAlpha(char c)
```
    Indicates whether the given character is in the ALPHA set.
    
    See Also:
    RFC 3986, appendix A
  - isDigit
```
public static boolean isDigit(char c)
```
    Indicates whether the given character is in the DIGIT set.
    
    See Also:
    RFC 3986, appendix A
  - isHexDigit
```
public static boolean isHexDigit(char c)
```
    Indicates whether the given character is the hexadecimal digit.
  - isGenericDelimiter
```
public static boolean isGenericDelimiter(int c)
```
    Indicates whether the given character is in the gen-delims set.
    
    See Also:
    RFC 3986, appendix A
  - isSubDelimiter
```
protected static boolean isSubDelimiter(int c)
```
    Indicates whether the given character is in the sub-delims set.
    
    See Also:
    RFC 3986, appendix A
  - isReserved
```
protected static boolean isReserved(char c)
```
    Indicates whether the given character is in the reserved set.
    
    See Also:
    RFC 3986, appendix A
  - isUnreserved
```
protected static boolean isUnreserved(char c)
```
    Indicates whether the given character is in the unreserved set.
    
    See Also:
    RFC 3986, appendix A
  - isPchar
```
protected static boolean isPchar(char c)
```
    Indicates whether the given character is in the pchar set.
    
    See Also:
    RFC 3986, appendix A
  - toUpperAscii
```
public static char toUpperAscii(char c)
```
    Uppers lowercase ASCII char.
  - toLowerAscii
```
public static char toLowerAscii(char c)
```
    Lowers uppercase ASCII char.
  - hex2int
```
public static int hex2int(char c)
```
    Converts hex char to int value.
  - int2hex
```
public static char int2hex(int i)
```
    Converts integer digit to heck char.

Class CharUtil

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

HEX_CHARS

Constructor Detail

CharUtil

Method Detail

toChar

toSimpleByteArray

toSimpleByteArray

toSimpleCharArray

toAscii

toAsciiByteArray

toAsciiByteArray

toRawByteArray

toRawCharArray

toByteArray

toByteArray

toCharArray

toCharArray

equalsOne

findFirstEqual

findFirstEqual

findFirstDiff

findFirstDiff

isWhitespace

isLowercaseAlpha

isUppercaseAlpha

isAlphaOrDigit

isWordChar

isPropertyNameChar

isAlpha

isDigit

isHexDigit

isGenericDelimiter

isSubDelimiter

isReserved

isUnreserved

isPchar

toUpperAscii

toLowerAscii

hex2int

int2hex