Java Module java.desktop Package java.awt Class RenderingHints.Key（JDK11）

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java.lang.Object
- java.awt.RenderingHints.Key

Enclosing class:

RenderingHints
```
public abstract static class RenderingHints.Key
extends Object
```
Defines the base type of all keys used along with the RenderingHints 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 equals() method.

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`Key(int privatekey)`	Construct a key using the indicated private key.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object o)`	The equals method for all Key objects will return the same result as the equality operator '=='.
`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.
`protected int`	`intKey()`	Returns the private integer key that the subclass instantiated this Key with.
`abstract boolean`	`isCompatibleValue(Object val)`	Returns true if the specified object is a valid value for this Key.

Methods declared in class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - 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 Detail
  - 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

Java Module java.desktop Package java.awt Class RenderingHints.Key（JDK11）

Class RenderingHints.Key

Constructor Summary

Method Summary

Methods declared in class java.lang.Object

Constructor Detail

Key

Method Detail

isCompatibleValue

intKey

hashCode

equals