Class scala.Double

Companion object Double

abstract final class Double extends AnyVal

Double, a 64-bit IEEE-754 floating point number (equivalent to Java's double primitive type) is a subtype of scala.AnyVal. Instances of Double are 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.

Source: Double.scala

Linear Supertypes

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: String): String

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

Concrete Value Members

final def !=(arg0: Any): Boolean

Test two objects for inequality.

returns: true if !(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 to ArrowAssoc[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: true if the receiver object is equivalent to the argument; false otherwise.

Definition Classes: Any

def abs: Double

Returns the absolute value of this.

Implicit: This member is added by an implicit conversion from Double to RichDouble 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: ClassCastException if the receiver object is not an instance of the erasure of type T0.

def ceil: Double

Implicit: This member is added by an implicit conversion from Double to RichDouble 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

this < that

x == 0

this == that

x > 0

this > that

Implicit: This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
Definition Classes: OrderedProxy → Ordered

def compareTo(arg0: java.lang.Double): Int

Implicit: This member is added by an implicit conversion from Double to java.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.

Implicit: This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
Definition Classes: Ordered → Comparable

def ensuring(cond: (Double) ⇒ Boolean, msg: ⇒ Any): Double

Implicit: This member is added by an implicit conversion from Double to Ensuring[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 to Ensuring[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 to Ensuring[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 to Ensuring[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:

x

Any

x.equals(x)

true

x

y

Any

x.equals(y)

true

y.equals(x)

true

x

y

z

Any

x.equals(y)

true

y.equals(z)

true

x.equals(z)

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: true if the receiver object is equivalent to the argument; false otherwise.

Definition Classes: Any

def floor: Double

Implicit: This member is added by an implicit conversion from Double to RichDouble 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 to StringFormat[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.

Definition Classes: Double → AnyVal → Any

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 isInfinite(): Boolean

Implicit: This member is added by an implicit conversion from Double to java.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 to RichDouble 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: true if the receiver object is an instance of erasure of type T0; false otherwise.

Definition Classes: Any

def isNaN(): Boolean

Implicit: This member is added by an implicit conversion from Double to java.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 to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
Definition Classes: RichDouble

def isNegInfinity: Boolean

Implicit: This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
Definition Classes: RichDouble

def isPosInfinity: Boolean

Implicit: This member is added by an implicit conversion from Double to RichDouble 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 to RichDouble 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 to RichDouble 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 to RichDouble 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 to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
Definition Classes: RichDouble → ScalaNumericAnyConversions

def isWhole(): Boolean

returns: true if this number has no decimal component, false otherwise.

Implicit: This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
Definition Classes: RichDouble → FractionalProxy → ScalaNumericAnyConversions

def max(that: Double): Double

Returns this if this > that or that otherwise.

Implicit: This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
Definition Classes: RichDouble → ScalaNumberProxy

def min(that: Double): Double

Returns this if this < that or that otherwise.

Implicit: This member is added by an implicit conversion from Double to RichDouble 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 to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
Definition Classes: RichDouble

val self: Double

Implicit: This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
Definition Classes: RichDouble → Typed → Proxy

def signum: Int

Returns the signum of this.

Implicit: This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
Definition Classes: RichDouble → ScalaNumberProxy

def toDegrees: Double

Converts an angle measured in radians to an approximately equivalent angle measured in degrees.

returns: the measurement of the angle x in degrees.

Implicit: This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
Definition Classes: RichDouble

def toRadians: Double

Converts an angle measured in degrees to an approximately equivalent angle measured in radians.

returns: the measurement of the angle x in radians.

Implicit: This member is added by an implicit conversion from Double to RichDouble 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

def underlying(): AnyRef

Implicit: This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.
Definition Classes: ScalaNumberProxy → ScalaNumericAnyConversions

def →[B](y: B): (Double, B)

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

Shadowed Implicit Value Members

def +(other: String): String

Implicit

This member is added by an implicit conversion from Double to any2stringadd[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 to RichDouble 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 to RichDouble 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 to RichDouble 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 to RichDouble 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 byteValue(): Byte

Implicit

This member is added by an implicit conversion from Double to java.lang.Double performed by method double2Double in scala.Predef.

Shadowing

This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
To access this member you can use a type ascription:

(double: java.lang.Double).byteValue()

Definition Classes

Double → Number

def byteValue(): Byte

Implicit

This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.

Shadowing

(double: RichDouble).byteValue()

Definition Classes

RichDouble → ScalaNumberProxy → ScalaNumericAnyConversions

def doubleValue(): Double

Implicit

This member is added by an implicit conversion from Double to java.lang.Double performed by method double2Double in scala.Predef.

Shadowing

(double: java.lang.Double).doubleValue()

Definition Classes

Double → Number

def doubleValue(): Double

Implicit

This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.

Shadowing

(double: RichDouble).doubleValue()

Definition Classes

RichDouble → ScalaNumberProxy → ScalaNumericAnyConversions

def equals(arg0: Any): Boolean

The equality method for reference types. Default implementation delegates to eq.

def floatValue(): Float

Implicit

This member is added by an implicit conversion from Double to java.lang.Double performed by method double2Double in scala.Predef.

Shadowing

(double: java.lang.Double).floatValue()

Definition Classes

Double → Number

def floatValue(): Float

Implicit

This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.

Shadowing

(double: RichDouble).floatValue()

Definition Classes

RichDouble → ScalaNumberProxy → ScalaNumericAnyConversions

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 to java.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 intValue(): Int

Implicit

This member is added by an implicit conversion from Double to java.lang.Double performed by method double2Double in scala.Predef.

Shadowing

(double: java.lang.Double).intValue()

Definition Classes

Double → Number

def intValue(): Int

Implicit

This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.

Shadowing

(double: RichDouble).intValue()

Definition Classes

RichDouble → ScalaNumberProxy → ScalaNumericAnyConversions

def longValue(): Long

Implicit

This member is added by an implicit conversion from Double to java.lang.Double performed by method double2Double in scala.Predef.

Shadowing

(double: java.lang.Double).longValue()

Definition Classes

Double → Number

def longValue(): Long

Implicit

This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.

Shadowing

(double: RichDouble).longValue()

Definition Classes

RichDouble → ScalaNumberProxy → ScalaNumericAnyConversions

def shortValue(): Short

Implicit

This member is added by an implicit conversion from Double to java.lang.Double performed by method double2Double in scala.Predef.

Shadowing

(double: java.lang.Double).shortValue()

Definition Classes

Double → Number

def shortValue(): Short

Implicit

This member is added by an implicit conversion from Double to RichDouble performed by method doubleWrapper in scala.LowPriorityImplicits.

Shadowing

(double: RichDouble).shortValue()

Definition Classes

RichDouble → ScalaNumberProxy → ScalaNumericAnyConversions

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 to RichDouble 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 to RichDouble 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 to RichDouble 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 to RichDouble 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 to RichDouble 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 to RichDouble 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 to RichDouble 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 to java.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 to RichDouble 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/2.12.9/scala/Double.html