Double2ByteFunctions.Singleton (fastutil 7.0.13)

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java.lang.Object
- it.unimi.dsi.fastutil.doubles.AbstractDouble2ByteFunction
- - it.unimi.dsi.fastutil.doubles.Double2ByteFunctions.Singleton

All Implemented Interfaces:

Double2ByteFunction, Function<java.lang.Double,java.lang.Byte>, java.io.Serializable, java.lang.Cloneable

Direct Known Subclasses:

Double2ByteMaps.Singleton

Enclosing class:

Double2ByteFunctions
```
public static class Double2ByteFunctions.Singleton
extends AbstractDouble2ByteFunction
implements java.io.Serializable, java.lang.Cloneable
```
An immutable class representing a type-specific singleton function.
This class may be useful to implement your own in case you subclass a type-specific function.

See Also:

Serialized Form

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`java.lang.Object`	`clone()`
`boolean`	`containsKey(double k)`
`byte`	`get(double k)` Returns the value to which the given key is mapped.
`int`	`size()` Returns the intended number of keys in this function, or -1 if no such number exists.

Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2ByteFunction
clear, containsKey, defaultReturnValue, defaultReturnValue, get, put, put, remove, remove

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - containsKey
```
public boolean containsKey(double k)
```
    Specified by:
    
    containsKey in interface Double2ByteFunction
    
    See Also:
    
    Function.containsKey(Object)
  - get
```
public byte get(double k)
```
    Description copied from interface: Double2ByteFunction
    
    Returns the value to which the given key is mapped.
    
    Specified by:
    
    get in interface Double2ByteFunction
    
    Parameters:
    
    k - the key.
    
    Returns:
    
    the corresponding value, or the default return value if no value was present for the given key.
    
    See Also:
    
    Function.get(Object)
  - size
```
public int size()
```
    Description copied from interface: Function
    
    Returns the intended number of keys in this function, or -1 if no such number exists.
    Most function implementations will have some knowledge of the intended number of keys in their domain. In some cases, however, this might not be possible.
    
    Specified by:
    
    size in interface Function<java.lang.Double,java.lang.Byte>
    
    Returns:
    
    the intended number of keys in this function, or -1 if that number is not available.
  - clone
```
public java.lang.Object clone()
```
    Overrides:
    
    clone in class java.lang.Object

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