Module java.base
Package java.lang

# Class Character.Subset

java.lang.Object
java.lang.Character.Subset

Direct Known Subclasses:
  `Character.UnicodeBlock`, `InputSubset`

Enclosing class:
  `Character`

public static class Character.Subset extends Object
Instances of this class represent particular subsets of the Unicode character set. The only family of subsets defined in the `Character` class is `Character.UnicodeBlock`. Other portions of the Java API may define other subsets for their own purposes.

Since:
  1.2

## Constructor Summary

Constructors
Modifier
Constructor
Description
`protected`
`Subset(String name)`
Constructs a new `Subset` instance.

## Method Summary

Modifier and Type
Method
Description
`final boolean`
`equals(Object obj)`
Compares two `Subset` objects for equality.
`final int`
`hashCode()`
Returns the standard hash code as defined by the `Object.hashCode()` method.
`final String`
`toString()`
Returns the name of this subset.

### Methods declared in class java.lang.Object

`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

## Constructor Details

### Subset

protected Subset(String name)
Constructs a new `Subset` instance.

Parameters:
  `name` - The name of this subset
Throws:
  `NullPointerException` - if name is `null`

## Method Details

### equals

public final boolean equals(Object obj)
Compares two `Subset` objects for equality. This method returns `true` if and only if `this` and the argument refer to the same object; since this method is `final`, this guarantee holds for all subclasses.

Overrides:
  `equals` in class `Object`
Parameters:
  `obj` - the reference object with which to compare.
Returns:
  `true` if this object is the same as the obj argument; `false` otherwise.
See Also:
  - `Object.hashCode()`
  - `HashMap`

### hashCode

public final int hashCode()
Returns the standard hash code as defined by the `Object.hashCode()` method. This method is `final` in order to ensure that the `equals` and `hashCode` methods will be consistent in all subclasses.

Overrides:
  `hashCode` in class `Object`
Returns:
  a hash code value for this object.
See Also:
  - `Object.equals(java.lang.Object)`
  - `System.identityHashCode(java.lang.Object)`

### toString

public final String toString()
Returns the name of this subset.

Overrides:
  `toString` in class `Object`
Returns:
  a string representation of the object.