Java.lang.Character.UnicodeBlock Class in Java

Character.UnicodeBlock Class represents particular Character blocks of the Unicode(standards using hexadecimal values to express characters – 16 bit) specifications. Character Blocks define characters used for specific purpose.

Declaration :

public static final class Character.UnicodeBlock
   extends Character.Subset

Methods of Character.UnicodeBlock Class :

forName() : java.lang.Character.UnicodeBlock.forName() returns the name of Unicode Blocks, which are determined by the Unicode Standards.
The method accepts argument as Canonical Block as per Unicode Standards.
Syntax :

public static final Character.UnicodeBlock forName(String block)
Parameters : 
block : Name of UniCode Block.
Return  :
instance of UniCode Block.
Exception : 
-> IllegalArgumentException
-> NullPointerException

of(char ch) : java.lang.Character.Subset.of(char ch) returns the UniCode Block having the argumented character or null if the character is not a part of any defined Unicode Block.
Syntax :

public static Character.UnicodeBlock of(char ch)
Parameters : 
ch : character to be found.
Return  :
returns the UniCode Block or null.
Exception : 
-> IllegalArgumentException

of(int UCPoint) : java.lang.Character.Subset.of(int UCPoint)returns the object having the argumented UniCode – Point or null if the character is not a part of any defined Unicode Block.
Syntax :
```
public final String toString()
Parameters : 
---
Return  :
returns the object having the argumented UniCode - Point or null
Exception : 
-> IllegalArgumentException
```

// Java Program illustrating the use of 
// Character.UnicodeBlock class Methods. 

import java.lang.*; 

public class CharacterSubsetDemo  
{ 

   public static void main(String[] args)  

   { 

      // Use of forName() :  

      // returns Unicode Blocks, as per Unicode Standards 

      System.out.println("Using UnicodeBlock.forName() : "); 

      System.out.println(Character.UnicodeBlock.forName("OLDITALIC")); 

      System.out.println(Character.UnicodeBlock.forName("NUMBERFORMS")); 

      System.out.println(Character.UnicodeBlock.forName("MALAYALAM") + "\n"); 

      // Use of(char ch) : 

      System.out.println("Using UnicodeBlock.of(char ch) : "); 

      System.out.println(Character.UnicodeBlock.of(' ')); 

      System.out.println(Character.UnicodeBlock.of('\u21ac') + "\n"); 

      // Use of(int UCPoint) :  

      System.out.println("Using UnicodeBlock.of(int UCPoint) : "); 

      System.out.println(Character.UnicodeBlock.of(1609));     

      System.out.println(Character.UnicodeBlock.of(1565)); 

   } 
}

Output :

Using UnicodeBlock.forName() : 
OLD_ITALIC
NUMBER_FORMS
MALAYALAM

Using UnicodeBlock.of(char ch) : 
BASIC_LATIN
ARROWS

Using UnicodeBlock.of(int UCPoint) : 
ARABIC
ARABIC

Note :
lang.Character.UnicodeBlock Class inherits others methods from lang.Character.Subset Class class which in turn inherits methods from lang.Character.Object class.

For further details about java.lang.Object, refer :
lang.Character.Subset Class in Java.
Object class in Java.

Article Tags :

Java

Java-lang package