Class scala.Double
Companion object Double
abstract final class Double extends AnyVal
Abstract Value Members
abstract def !=(x: Double): Boolean
abstract def !=(x: Float): Boolean
abstract def !=(x: Long): Boolean
abstract def !=(x: Int): Boolean
abstract def !=(x: Char): Boolean
abstract def !=(x: Short): Boolean
abstract def !=(x: Byte): Boolean
abstract def %(x: Double): Double
abstract def %(x: Float): Double
abstract def %(x: Long): Double
abstract def %(x: Int): Double
abstract def %(x: Char): Double
abstract def %(x: Short): Double
abstract def %(x: Byte): Double
abstract def *(x: Double): Double
abstract def *(x: Float): Double
abstract def *(x: Long): Double
abstract def *(x: Int): Double
abstract def *(x: Char): Double
abstract def *(x: Short): Double
abstract def *(x: Byte): Double
abstract def +(x: Double): Double
abstract def +(x: Float): Double
abstract def +(x: Long): Double
abstract def +(x: Int): Double
abstract def +(x: Char): Double
abstract def +(x: Short): Double
abstract def +(x: Byte): Double
abstract def -(x: Double): Double
abstract def -(x: Float): Double
abstract def -(x: Long): Double
abstract def -(x: Int): Double
abstract def -(x: Char): Double
abstract def -(x: Short): Double
abstract def -(x: Byte): Double
abstract def /(x: Double): Double
abstract def /(x: Float): Double
abstract def /(x: Long): Double
abstract def /(x: Int): Double
abstract def /(x: Char): Double
abstract def /(x: Short): Double
abstract def /(x: Byte): Double
abstract def <(x: Double): Boolean
abstract def <(x: Float): Boolean
abstract def <(x: Long): Boolean
abstract def <(x: Int): Boolean
abstract def <(x: Char): Boolean
abstract def <(x: Short): Boolean
abstract def <(x: Byte): Boolean
abstract def <=(x: Double): Boolean
abstract def <=(x: Float): Boolean
abstract def <=(x: Long): Boolean
abstract def <=(x: Int): Boolean
abstract def <=(x: Char): Boolean
abstract def <=(x: Short): Boolean
abstract def <=(x: Byte): Boolean
abstract def ==(x: Double): Boolean
abstract def ==(x: Float): Boolean
abstract def ==(x: Long): Boolean
abstract def ==(x: Int): Boolean
abstract def ==(x: Char): Boolean
abstract def ==(x: Short): Boolean
abstract def ==(x: Byte): Boolean
abstract def >(x: Double): Boolean
abstract def >(x: Float): Boolean
abstract def >(x: Long): Boolean
abstract def >(x: Int): Boolean
abstract def >(x: Char): Boolean
abstract def >(x: Short): Boolean
abstract def >(x: Byte): Boolean
abstract def >=(x: Double): Boolean
abstract def >=(x: Float): Boolean
abstract def >=(x: Long): Boolean
abstract def >=(x: Int): Boolean
abstract def >=(x: Char): Boolean
abstract def >=(x: Short): Boolean
abstract def >=(x: Byte): Boolean
abstract def toByte: Byte
abstract def toChar: Char
abstract def toDouble: Double
abstract def toFloat: Float
abstract def toInt: Int
abstract def toLong: Long
abstract def toShort: Short
abstract def unary_+: Double
abstract def unary_-: Double
abstract def +(x: String): String
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Adding a number and a String is deprecated. Use the string interpolation
s"$num$str"
Concrete Value Members
final def !=(arg0: Any): Boolean
Test two objects for inequality.
- returns
trueif !(this == that), false otherwise.
- Definition Classes
- Any
final def ##(): Int
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.
- returns
a hash value consistent with ==
- Definition Classes
- Any
def ->[B](y: B): (Double, B)
- Implicit
- This member is added by an implicit conversion from Double toArrowAssoc[Double] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @inline()
final def ==(arg0: Any): Boolean
Test two objects for equality. The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).
- returns
trueif the receiver object is equivalent to the argument;falseotherwise.
- Definition Classes
- Any
def abs: Double
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble → ScalaNumberProxy
final def asInstanceOf[T0]: 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.
- returns
the receiver object.
- Definition Classes
- Any
- Exceptions thrown
ClassCastExceptionif the receiver object is not an instance of the erasure of typeT0.
def byteValue(): Byte
- Implicit
- This member is added by an implicit conversion from Double tojava.lang.Double performed by method double2Double in scala.Predef.
- Definition Classes
- Double → Number
def byteValue: Byte
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble → ScalaNumberProxy → ScalaNumericAnyConversions
def ceil: Double
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble
def compare(y: Double): Int
Result of comparing this with operand that.
Implement this method to determine how instances of A will be sorted.
Returns x where:
x < 0 when this < that
x == 0 when this == that
x > 0 when this > that
def compareTo(arg0: java.lang.Double): Int
- Implicit
- This member is added by an implicit conversion from Double tojava.lang.Double performed by method double2Double in scala.Predef.
- Definition Classes
- Double → Comparable
def compareTo(that: Double): Int
Result of comparing this with operand that.
def doubleValue(): Double
- Implicit
- This member is added by an implicit conversion from Double tojava.lang.Double performed by method double2Double in scala.Predef.
- Definition Classes
- Double → Number
def doubleValue: Double
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble → ScalaNumberProxy → ScalaNumericAnyConversions
def ensuring(cond: (Double) => Boolean, msg: => Any): Double
- Implicit
- This member is added by an implicit conversion from Double toEnsuring[Double] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
def ensuring(cond: (Double) => Boolean): Double
- Implicit
- This member is added by an implicit conversion from Double toEnsuring[Double] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
def ensuring(cond: Boolean, msg: => Any): Double
- Implicit
- This member is added by an implicit conversion from Double toEnsuring[Double] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
def ensuring(cond: Boolean): Double
- Implicit
- This member is added by an implicit conversion from Double toEnsuring[Double] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
def equals(arg0: Any): Boolean
Compares the receiver object (this) with the argument object (that) for equivalence.
Any implementation of this method should be an equivalence relation:
-
It is reflexive: for any instance
x of type Any, x.equals(x) should return true.It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and only if y.equals(x) returns true.It is transitive: for any instances x, y, and z of type Any if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true. If you override this method, you should verify that your implementation remains an equivalence relation. Additionally, when overriding this method it is usually necessary to override hashCode to ensure that objects which are "equal" (o1.equals(o2) returns true) hash to the same scala.Int. (o1.hashCode.equals(o2.hashCode)).
- returns
trueif the receiver object is equivalent to the argument;falseotherwise.
- Definition Classes
- Any
def floatValue(): Float
- Implicit
- This member is added by an implicit conversion from Double tojava.lang.Double performed by method double2Double in scala.Predef.
- Definition Classes
- Double → Number
def floatValue: Float
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble → ScalaNumberProxy → ScalaNumericAnyConversions
def floor: Double
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble
def formatted(fmtstr: String): String
Returns string formatted according to given format string. Format strings are as for String.format (@see java.lang.String.format).
- Implicit
- This member is added by an implicit conversion from Double toStringFormat[Double] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
- Annotations
- @inline()
def getClass(): Class[Double]
Returns the runtime class representation of the object.
- returns
a class object corresponding to the runtime type of the receiver.
def hashCode(): Int
Calculate a hash code value for the object.
The default hashing algorithm is platform dependent.
Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0. However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure to verify that the behavior is consistent with the equals method.
- returns
the hash code value for this object.
- Definition Classes
- Any
def intValue(): Int
- Implicit
- This member is added by an implicit conversion from Double tojava.lang.Double performed by method double2Double in scala.Predef.
- Definition Classes
- Double → Number
def intValue: Int
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble → ScalaNumberProxy → ScalaNumericAnyConversions
def isFinite: Boolean
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble
def isInfinite(): Boolean
- Implicit
- This member is added by an implicit conversion from Double tojava.lang.Double performed by method double2Double in scala.Predef.
- Definition Classes
- Double
def isInfinity: Boolean
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble
final def isInstanceOf[T0]: Boolean
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.
- returns
trueif the receiver object is an instance of erasure of typeT0;falseotherwise.
- Definition Classes
- Any
def isNaN(): Boolean
- Implicit
- This member is added by an implicit conversion from Double tojava.lang.Double performed by method double2Double in scala.Predef.
- Definition Classes
- Double
def isNaN: Boolean
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble
def isNegInfinity: Boolean
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble
def isPosInfinity: Boolean
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble
def isValidByte: Boolean
Returns true iff this has a zero fractional part, and is within the range of scala.Byte MinValue and MaxValue; otherwise returns false.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble → ScalaNumericAnyConversions
def isValidChar: Boolean
Returns true iff this has a zero fractional part, and is within the range of scala.Char MinValue and MaxValue; otherwise returns false.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble → ScalaNumericAnyConversions
def isValidInt: Boolean
Returns true iff this has a zero fractional part, and is within the range of scala.Int MinValue and MaxValue; otherwise returns false.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble → ScalaNumericAnyConversions
def isValidShort: Boolean
Returns true iff this has a zero fractional part, and is within the range of scala.Short MinValue and MaxValue; otherwise returns false.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble → ScalaNumericAnyConversions
def isWhole: Boolean
- returns
trueif this number has no decimal component,falseotherwise.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble → FractionalProxy → ScalaNumericAnyConversions
def longValue(): Long
- Implicit
- This member is added by an implicit conversion from Double tojava.lang.Double performed by method double2Double in scala.Predef.
- Definition Classes
- Double → Number
def longValue: Long
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble → ScalaNumberProxy → ScalaNumericAnyConversions
def max(that: Double): Double
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble → ScalaNumberProxy
def min(that: Double): Double
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble → ScalaNumberProxy
def round: Long
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble
val self: Double
def shortValue(): Short
- Implicit
- This member is added by an implicit conversion from Double tojava.lang.Double performed by method double2Double in scala.Predef.
- Definition Classes
- Double → Number
def shortValue: Short
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble → ScalaNumberProxy → ScalaNumericAnyConversions
def sign: Double
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- ScalaNumberProxy
def toDegrees: Double
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble
def toRadians: Double
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Definition Classes
- RichDouble
def toString(): String
Returns a string representation of the object.
The default representation is platform dependent.
- returns
a string representation of the object.
- Definition Classes
- Any
Shadowed Implicit Value Members
def +(other: String): String
- Implicit
- This member is added by an implicit conversion from Double toany2stringadd[Double] performed by method any2stringadd in scala.Predef.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: any2stringadd[Double]).+(other)
- Definition Classes
- any2stringadd
def <(that: Double): Boolean
Returns true if this is less than that
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: RichDouble).<(that)
- Definition Classes
- Ordered
def <=(that: Double): Boolean
Returns true if this is less than or equal to that.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: RichDouble).<=(that)
- Definition Classes
- Ordered
def >(that: Double): Boolean
Returns true if this is greater than that.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: RichDouble).>(that)
- Definition Classes
- Ordered
def >=(that: Double): Boolean
Returns true if this is greater than or equal to that.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: RichDouble).>=(that)
- Definition Classes
- Ordered
def equals(arg0: AnyRef): Boolean
The equality method for reference types. Default implementation delegates to eq.
See also equals in scala.Any.
- returns
trueif the receiver object is equivalent to the argument;falseotherwise.
- Implicit
- This member is added by an implicit conversion from Double tojava.lang.Double performed by method double2Double in scala.Predef.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: java.lang.Double).equals(arg0)
- Definition Classes
- Double → AnyRef → Any
def hashCode(): Int
The hashCode method for reference types. See hashCode in scala.Any.
- returns
the hash code value for this object.
- Implicit
- This member is added by an implicit conversion from Double tojava.lang.Double performed by method double2Double in scala.Predef.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: java.lang.Double).hashCode()
- Definition Classes
- Double → AnyRef → Any
def toByte: Byte
Returns the value of this as a scala.Byte. This may involve rounding or truncation.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: RichDouble).toByte
- Definition Classes
- ScalaNumericAnyConversions
def toChar: Char
Returns the value of this as a scala.Char. This may involve rounding or truncation.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: RichDouble).toChar
- Definition Classes
- ScalaNumericAnyConversions
def toDouble: Double
Returns the value of this as a scala.Double. This may involve rounding or truncation.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: RichDouble).toDouble
- Definition Classes
- ScalaNumericAnyConversions
def toFloat: Float
Returns the value of this as a scala.Float. This may involve rounding or truncation.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: RichDouble).toFloat
- Definition Classes
- ScalaNumericAnyConversions
def toInt: Int
Returns the value of this as an scala.Int. This may involve rounding or truncation.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: RichDouble).toInt
- Definition Classes
- ScalaNumericAnyConversions
def toLong: Long
Returns the value of this as a scala.Long. This may involve rounding or truncation.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: RichDouble).toLong
- Definition Classes
- ScalaNumericAnyConversions
def toShort: Short
Returns the value of this as a scala.Short. This may involve rounding or truncation.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: RichDouble).toShort
- Definition Classes
- ScalaNumericAnyConversions
def toString(): String
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.
- returns
a String representation of the object.
- Implicit
- This member is added by an implicit conversion from Double tojava.lang.Double performed by method double2Double in scala.Predef.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: java.lang.Double).toString()
- Definition Classes
- Double → AnyRef → Any
def toString(): String
Returns a string representation of the object.
The default representation is platform dependent.
- returns
a string representation of the object.
- Implicit
- This member is added by an implicit conversion from Double toRichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(double: RichDouble).toString()
- Definition Classes
- Proxy → Any
© 2002-2019 EPFL, with contributions from Lightbend.
Licensed under the Apache License, Version 2.0.
https://www.scala-lang.org/api/2.13.0/scala/Double.html
Double, a 64-bit IEEE-754 floating point number (equivalent to Java'sdoubleprimitive type) is a subtype of scala.AnyVal. Instances ofDoubleare not represented by an object in the underlying runtime system.There is an implicit conversion from scala.Double => scala.runtime.RichDouble which provides useful non-primitive operations.