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Showing content from https://docs.oracle.com/en/java/javase/19/docs/api/java.desktop/java/awt/RenderingHints.Key.html below:

RenderingHints.Key (Java SE 19 & JDK 19)

Enclosing class:

RenderingHints

Defines the base type of all keys used along with the

class to control various algorithm choices in the rendering and imaging pipelines. Instances of this class are immutable and unique which means that tests for matches can be made using the

operator instead of the more expensive

method.

• Constructor Summary

  Constructors

  protected

  Construct a key using the indicated private key.

• Method Summary

  final boolean

  The equals method for all Key objects will return the same result as the equality operator '=='.

  final int

  The hash code for all Key objects will be the same as the system identity code of the object as defined by the System.identityHashCode() method.

  protected final int

  Returns the private integer key that the subclass instantiated this Key with.

  abstract boolean

  Returns true if the specified object is a valid value for this Key.

• Constructor Details
  • Key

    protected Key(int privatekey)

    Construct a key using the indicated private key. Each subclass of Key maintains its own unique domain of integer keys. No two objects with the same integer key and of the same specific subclass can be constructed. An exception will be thrown if an attempt is made to construct another object of a given class with the same integer key as a pre-existing instance of that subclass of Key.

    Parameters:

    privatekey - the specified key

• Method Details
  • isCompatibleValue public abstract boolean isCompatibleValue(Object val)

    Returns true if the specified object is a valid value for this Key.

    Parameters:

    val - the Object to test for validity

    Returns:

    true if val is valid; false otherwise.

  • intKey

    protected final int intKey()

    Returns the private integer key that the subclass instantiated this Key with.

    Returns:

    the private integer key that the subclass instantiated this Key with.

  • hashCode

    public final int hashCode()

    The hash code for all Key objects will be the same as the system identity code of the object as defined by the System.identityHashCode() method.

    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)

  • equals public final boolean equals(Object o)

    The equals method for all Key objects will return the same result as the equality operator '=='.

    Overrides:

    equals in class Object

    Parameters:

    o - 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

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