Returns the UnicodeBlock with the given name.

  Returns the UnicodeBlock with the given name. Block names are determined by The Unicode Standard. The file Blocks-<version>.txt defines blocks for a particular version of the standard. The Character class specifies the version of the standard that it supports.

This method accepts block names in the following forms:

1. Canonical block names as defined by the Unicode Standard. For example, the standard defines a "Basic Latin" block. Therefore, this method accepts "Basic Latin" as a valid block name. The documentation of each UnicodeBlock provides the canonical name.
2. Canonical block names with all spaces removed. For example, "BasicLatin" is a valid block name for the "Basic Latin" block.
3. The text representation of each constant UnicodeBlock identifier. For example, this method will return the Character.UnicodeBlock.BASIC_LATIN block if provided with the "BASIC_LATIN" name. This form replaces all spaces and hyphens in the canonical name with underscores.

Finally, character case is ignored for all of the valid block name forms. For example, "BASIC_LATIN" and "basic_latin" are both valid block names. The en_US locale's case mapping rules are used to provide case-insensitive string comparisons for block name validation.

If the Unicode Standard changes block names, both the previous and current names will be accepted.
Returns: The UnicodeBlock instance identified by blockName
Parameters:
- blockName - A UnicodeBlock name.
Throws:
- IllegalArgumentException - if blockName is an invalid name
- NullPointerException - if blockName is null
Since: 1.5

  Returns the object representing the Unicode block containing the given character, or null if the character is not a member of a defined block.

  Returns the object representing the Unicode block containing the given character, or null if the character is not a member of a defined block.

Note: This method cannot handle supplementary characters. To support all Unicode characters, including supplementary characters, use the Character.UnicodeBlock.of(int) method.
Returns: The UnicodeBlock instance representing the Unicode block of which this character is a member, or null if the character is not a member of any Unicode block
Parameters:
- c - The character in question

  Returns the object representing the Unicode block containing the given character (Unicode code point), or null if the character is not a member of a defined block.

  Returns the object representing the Unicode block
containing the given character (Unicode code point), or
null if the character is not a member of a
defined block.
Returns: The UnicodeBlock instance representing the Unicode block of which this character is a member, or null if the character is not a member of any Unicode block
Parameters:
- codePoint - the character (Unicode code point) in question.
Throws:
- IllegalArgumentException - if the specified codePoint is an invalid Unicode code point.
Since: 1.5
See Also: Character.isValidCodePoint(int),