List
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class List
| package immutable
The underlying collection type with unknown element type
The underlying collection type with unknown element type
A generic implementation of the CanBuildFrom trait, which forwards
all calls to apply(from) to the genericBuilder method of
collection from, and which forwards all calls of apply() to the
newBuilder method of this factory.
A generic implementation of the CanBuildFrom trait, which forwards
all calls to apply(from) to the genericBuilder method of
collection from, and which forwards all calls of apply() to the
newBuilder method of this factory.
Test two objects for inequality.
Test two objects for inequality.
true if !(this == that), false otherwise.
Equivalent to x.hashCode except for boxed numeric types and null.
Equivalent to x.hashCode except for boxed numeric types and null.
For numerics, it returns a hash value which is consistent
with value equality: if two value type instances compare
as true, then ## will produce the same hash value for each
of them.
For null returns a hashcode where null.hashCode throws a
NullPointerException.
a hash value consistent with ==
The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).
The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).
the object to compare against this object for equality.
true if the receiver object is equivalent to the argument; false otherwise.
Creates a list with the specified elements.
Creates a list with the specified elements.
the type of the list's elements
a new list with elements elems
Cast the receiver object to be of type T0.
Cast the receiver object to be of type T0.
Note that the success of a cast at runtime is modulo Scala's erasure semantics.
Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at
runtime, while the expression List(1).asInstanceOf[List[String]] will not.
In the latter example, because the type argument is erased as part of compilation it is
not possible to check whether the contents of the list are of the requested type.
the receiver object.
ClassCastException if the receiver object is not an instance of the erasure of type T0.
The standard CanBuildFrom instance for List objects.
The standard CanBuildFrom instance for List objects.
The created value is an instance of class GenericCanBuildFrom,
which forwards calls to create a new builder to the
genericBuilder method of the requesting collection.
Create a copy of the receiver object.
Concatenates all argument collections into a single collection.
Concatenates all argument collections into a single collection.
the collections that are to be concatenated.
the concatenation of all the collections.
An empty collection of type List[A]
An empty collection of type List[A]
the type of the list's elements
Tests whether the argument (arg0) is a reference to the receiver object (this).
Tests whether the argument (arg0) is a reference to the receiver object (this).
The eq method implements an equivalence relation on
non-null instances of AnyRef, and has three additional properties:
x and y of type AnyRef, multiple invocations of
x.eq(y) consistently returns true or consistently returns false.x of type AnyRef, x.eq(null) and null.eq(x) returns false.null.eq(null) returns true. When overriding the equals or hashCode methods, it is important to ensure that their behavior is
consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they
should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).
true if the argument is a reference to the receiver object; false otherwise.
The equality method for reference types.
Produces a five-dimensional collection containing the results of some element computation a number of times.
Produces a five-dimensional collection containing the results of some element computation a number of times.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
the number of elements in the 3nd dimension
the number of elements in the 4th dimension
the number of elements in the 5th dimension
the element computation
A collection that contains the results of n1 x n2 x n3 x n4 x n5 evaluations of elem.
Produces a four-dimensional collection containing the results of some element computation a number of times.
Produces a four-dimensional collection containing the results of some element computation a number of times.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
the number of elements in the 3nd dimension
the number of elements in the 4th dimension
the element computation
A collection that contains the results of n1 x n2 x n3 x n4 evaluations of elem.
Produces a three-dimensional collection containing the results of some element computation a number of times.
Produces a three-dimensional collection containing the results of some element computation a number of times.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
the number of elements in the 3nd dimension
the element computation
A collection that contains the results of n1 x n2 x n3 evaluations of elem.
Produces a two-dimensional collection containing the results of some element computation a number of times.
Produces a two-dimensional collection containing the results of some element computation a number of times.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
the element computation
A collection that contains the results of n1 x n2 evaluations of elem.
Produces a collection containing the results of some element computation a number of times.
Produces a collection containing the results of some element computation a number of times.
the number of elements contained in the collection.
the element computation
A collection that contains the results of n evaluations of elem.
Called by the garbage collector on the receiver object when there are no more references to the object.
Called by the garbage collector on the receiver object when there are no more references to the object.
The details of when and if the finalize method is invoked, as
well as the interaction between finalize and non-local returns
and exceptions, are all platform dependent.
A representation that corresponds to the dynamic class of the receiver object.
A representation that corresponds to the dynamic class of the receiver object.
The nature of the representation is platform dependent.
a representation that corresponds to the dynamic class of the receiver object.
not specified by SLS as a member of AnyRef
The hashCode method for reference types.
Test whether the dynamic type of the receiver object is T0.
Test whether the dynamic type of the receiver object is T0.
Note that the result of the test is modulo Scala's erasure semantics.
Therefore the expression 1.isInstanceOf[String] will return false, while the
expression List(1).isInstanceOf[List[String]] will return true.
In the latter example, because the type argument is erased as part of compilation it is
not possible to check whether the contents of the list are of the specified type.
true if the receiver object is an instance of erasure of type T0; false otherwise.
Produces a collection containing repeated applications of a function to a start value.
Produces a collection containing repeated applications of a function to a start value.
the start value of the collection
the number of elements contained inthe collection
the function that's repeatedly applied
a collection with len values in the sequence start, f(start), f(f(start)), ...
Equivalent to !(this eq that).
Equivalent to !(this eq that).
true if the argument is not a reference to the receiver object; false otherwise.
The default builder for List
The default builder for List
the type of the list's elements
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up a single thread that is waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
Wakes up all threads that are waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
Produces a collection containing equally spaced values in some integer interval.
Produces a collection containing equally spaced values in some integer interval.
the start value of the collection
the end value of the collection (the first value NOT contained)
the difference between successive elements of the collection (must be positive or negative)
a collection with values start, start + step, ... up to, but excluding end
Produces a collection containing a sequence of increasing of integers.
Produces a collection containing a sequence of increasing of integers.
the first element of the collection
the end value of the collection (the first value NOT contained)
a collection with values start, start + 1, ..., end - 1
Produces a five-dimensional collection containing values of a given function over ranges of integer values starting from 0.
Produces a five-dimensional collection containing values of a given function over ranges of integer values starting from 0.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
the number of elements in the 3nd dimension
the number of elements in the 4th dimension
the number of elements in the 5th dimension
The function computing element values
A collection consisting of elements f(i1, i2, i3, i4, i5)
for 0 <= i1 < n1, 0 <= i2 < n2, 0 <= i3 < n3, 0 <= i4 < n4, and 0 <= i5 < n5.
Produces a four-dimensional collection containing values of a given function over ranges of integer values starting from 0.
Produces a four-dimensional collection containing values of a given function over ranges of integer values starting from 0.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
the number of elements in the 3nd dimension
the number of elements in the 4th dimension
The function computing element values
A collection consisting of elements f(i1, i2, i3, i4)
for 0 <= i1 < n1, 0 <= i2 < n2, 0 <= i3 < n3, and 0 <= i4 < n4.
Produces a three-dimensional collection containing values of a given function over ranges of integer values starting from 0.
Produces a three-dimensional collection containing values of a given function over ranges of integer values starting from 0.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
the number of elements in the 3nd dimension
The function computing element values
A collection consisting of elements f(i1, i2, i3)
for 0 <= i1 < n1, 0 <= i2 < n2, and 0 <= i3 < n3.
Produces a two-dimensional collection containing values of a given function over ranges of integer values starting from 0.
Produces a two-dimensional collection containing values of a given function over ranges of integer values starting from 0.
the number of elements in the 1st dimension
the number of elements in the 2nd dimension
The function computing element values
A collection consisting of elements f(i1, i2)
for 0 <= i1 < n1 and 0 <= i2 < n2.
Produces a collection containing values of a given function over a range of integer values starting from 0.
Produces a collection containing values of a given function over a range of integer values starting from 0.
The number of elements in the collection
The function computing element values
A collection consisting of elements f(0), ..., f(n -1)
Creates a String representation of this object.
Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.
a String representation of the object.
This method is called in a pattern match { case Seq(...) => }.
This method is called in a pattern match { case Seq(...) => }.
the selector value
sequence wrapped in an option, if this is a Seq, otherwise none
This object provides a set of operations to create
List