scala

# Equals

#### trait Equals extends Any

An interface containing operations for equality. The only method not already present in class `AnyRef` is `canEqual`.

Source
  Equals.scala

Linear Supertypes
Any
Known Subclasses
::, AbstractBuffer, AbstractIterable, AbstractIterable, AbstractMap, AbstractMap, AbstractMap, AbstractSeq, AbstractSeq, AbstractSet, AbstractSet, AnyRefMap, AnyValManifest, Appended, Appended, Appended, ArrayBuffer, ArrayLike, ArrayOps, ArraySeq, ArrayStack, BitSet, BitSet, BitSet, BitSet1, BitSet2, BitSetLike, BitSetN, Buffer, BufferLike, BufferProxy, Call, ClassTag, CompositeThrowable, Cons, Cont, Deadline, DefaultKeySet, DefaultKeySet, DefaultKeySet, DefaultKeySortedSet, DefaultKeySortedSet, DefaultMap, DefaultMap, DefaultMapModel, DefaultValuesIterable, DocBreak, DocCons, DocGroup, DocNest, DocNil, DocText, Done, DoubleLinkedList, DoubleLinkedListLike, DroppedWhile, DroppedWhile, DroppedWhile, DroppedWhile, Empty, EmptyView, EmptyView, EmptyView, End, Exclusive, Failure, Filtered, Filtered, Filtered, Filtered, FilteredKeys, FilteredKeys, FlatMapped, FlatMapped, FlatMapped, Forced, Forced, Forced, Found, GenMap, GenMapLike, GenSeq, GenSeqLike, GenSet, GenSetLike, HashMap, HashMap, HashMap1, HashSet, HashSet, HashTrieMap, HashTrieSet, History, ImmutableDefaultKeySet, ImmutableMapAdaptor, ImmutableSetAdaptor, Impl, Include, Inclusive, Inclusive, Index, IndexedSeq, IndexedSeq, IndexedSeq, IndexedSeqLike, IndexedSeqLike, IndexedSeqOptimized, IndexedSeqOptimized, IndexedSeqView, InsertionPoint, IntMap, Iterable, Iterable, Iterable, IterableForwarder, IterableLike, IterableProxy, IterableProxyLike, IterableView, IterableViewLike, Left, LeftProjection, LinearSeq, LinearSeq, LinearSeq, LinearSeqLike, LinearSeqOptimized, LinkedHashMap, LinkedHashSet, LinkedList, LinkedListLike, List, ListBuffer, ListMap, ListMap, ListSet, LongMap, LongMap, Manifest, Map, Map, Map, Map, Map1, Map2, Map3, Map4, MapLike, MapLike, MapLike, MapProxy, MapProxy, MapProxy, MapProxyLike, Mapped, Mapped, Mapped, MappedValues, MappedValues, MultiMap, MutableList, Nil, NoLo, Node, Node, None, NumericRange, ObservableBuffer, ObservableMap, ObservableSet, OpenHashMap, Option, PagedSeq, ParArray, ParHashMap, ParHashMap, ParHashSet, ParHashSet, ParMap, ParMap, ParMap, ParMapLike, ParMapLike, ParRange, ParSeq, ParSeq, ParSeq, ParSeqLike, ParSet, ParSet, ParSet, ParSetLike, ParSetLike, ParTrieMap, ParVector, Patched, Patched, Prepended, Prepended, PriorityQueue, PriorityQueueProxy, Product, Product1, Product10, Product11, Product12, Product13, Product14, Product15, Product16, Product17, Product18, Product19, Product2, Product20, Product21, Product22, Product3, Product4, Product5, Product6, Product7, Product8, Product9, Queue, Queue, QueueProxy, Range, Remove, Reset, ResizableArray, Reversed, Reversed, Reversed, RevertibleHistory, Right, RightProjection, ScalaReflectionException, ScanLeaf, ScanNode, Script, Seq, Seq, Seq, SeqForwarder, SeqLike, SeqLike, SeqProxy, SeqProxyLike, SeqView, SeqViewLike, Set, Set, Set, Set1, Set2, Set3, Set4, SetLike, SetLike, SetProxy, SetProxy, SetProxy, SetProxyLike, Sliced, Sliced, Sliced, Sliced, Some, SortedMap, SortedMap, SortedMapLike, SortedSet, SortedSet, SortedSet, SortedSetLike, Stack, Stack, StackProxy, Start, Stream, StreamView, StreamViewLike, StringBuilder, StringContext, StringLike, StringOps, Success, SynchronizedBuffer, SynchronizedMap, SynchronizedPriorityQueue, SynchronizedQueue, SynchronizedSet, SynchronizedStack, SystemProperties, TakenWhile, TakenWhile, TakenWhile, TakenWhile, Transformed, Transformed, Transformed, Transformed, TreeMap, TreeSet, TreeSet, TrieMap, Tuple1, Tuple10, Tuple11, Tuple12, Tuple13, Tuple14, Tuple15, Tuple16, Tuple17, Tuple18, Tuple19, Tuple2, Tuple20, Tuple21, Tuple22, Tuple3, Tuple4, Tuple5, Tuple6, Tuple7, Tuple8, Tuple9, UninitializedFieldError, UnrolledBuffer, Update, ValueSet, Vector, WithDefault, WithDefault, WithDefault, WithDefault, WithDefault, WithDefault, WrappedArray, WrappedString, Zipped, Zipped, Zipped, ZippedAll, ZippedAll, ZippedAll, ofBoolean, ofBoolean, ofByte, ofByte, ofChar, ofChar, ofDouble, ofDouble, ofFloat, ofFloat, ofInt, ofInt, ofLong, ofLong, ofRef, ofRef, ofShort, ofShort, ofUnit, ofUnit
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Inherited

1. Equals
2. Any

Implicitly

1. by any2stringadd
2. by StringFormat
3. by Ensuring
4. by ArrowAssoc

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### Abstract Value Members

1. #### abstract def canEqual(that: Any): Boolean

   A method that should be called from every well-designed equals method that is open to be overridden in a subclass.

   A method that should be called from every well-designed equals method that is open to be overridden in a subclass. See Programming in Scala, Chapter 28 for discussion and design.

   that

     the value being probed for possible equality

   returns

     true if this instance can possibly equal `that`, otherwise false

2. #### abstract def getClass(): Class[_]

   Definition Classes
     Any

### Concrete Value Members

1. #### final def !=(arg0: Any): Boolean

   Definition Classes
     Any

2. #### final def ##(): Int

   Definition Classes
     Any

3. #### def +(other: String): String

   Implicit information
     This member is added by an implicit conversion from Equals to any2stringadd[Equals] performed by method any2stringadd in scala.Predef.
   Definition Classes
     any2stringadd

4. #### def ->[B](y: B): (Equals, B)

   Implicit information
     This member is added by an implicit conversion from Equals to ArrowAssoc[Equals] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @inline()

5. #### final def ==(arg0: Any): Boolean

   Definition Classes
     Any

6. #### final def asInstanceOf[T0]: T0

   Definition Classes
     Any

7. #### def ensuring(cond: (Equals) ⇒ Boolean, msg: ⇒ Any): Equals

   Implicit information
     This member is added by an implicit conversion from Equals to Ensuring[Equals] performed by method Ensuring in scala.Predef.
   Definition Classes
     Ensuring

8. #### def ensuring(cond: (Equals) ⇒ Boolean): Equals

   Implicit information
     This member is added by an implicit conversion from Equals to Ensuring[Equals] performed by method Ensuring in scala.Predef.
   Definition Classes
     Ensuring

9. #### def ensuring(cond: Boolean, msg: ⇒ Any): Equals

   Implicit information
     This member is added by an implicit conversion from Equals to Ensuring[Equals] performed by method Ensuring in scala.Predef.
   Definition Classes
     Ensuring

10. #### def ensuring(cond: Boolean): Equals

    Implicit information
      This member is added by an implicit conversion from Equals to Ensuring[Equals] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring

11. #### def equals(arg0: Any): Boolean

    Definition Classes
      Any

12. #### def formatted(fmtstr: String): String

    Returns string formatted according to given `format` string.

    Returns string formatted according to given `format` string. Format strings are as for `String.format` (@see java.lang.String.format).

    Implicit information
      This member is added by an implicit conversion from Equals to StringFormat[Equals] performed by method StringFormat in scala.Predef.
    Definition Classes
      StringFormat
    Annotations
      @inline()

13. #### def hashCode(): Int

    Definition Classes
      Any

14. #### final def isInstanceOf[T0]: Boolean

    Definition Classes
      Any

15. #### def toString(): String

    Definition Classes
      Any

16. #### def →[B](y: B): (Equals, B)

    Implicit information
      This member is added by an implicit conversion from Equals to ArrowAssoc[Equals] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
      ArrowAssoc

### Inherited from Any

### Inherited by implicit conversion any2stringadd from Equals to any2stringadd[Equals]

### Inherited by implicit conversion StringFormat from Equals to StringFormat[Equals]

### Inherited by implicit conversion Ensuring from Equals to Ensuring[Equals]

### Inherited by implicit conversion ArrowAssoc from Equals to ArrowAssoc[Equals]

### Ungrouped