Double class

A wrapper class for double that provides Java-like functionality and methods.

This class wraps Dart's primitive double type and provides additional utility methods similar to Java's Double class.

Example usage:

Double a = Double(3.14);
Double b = Double.valueOf(2.71);
Double c = Double.parseDouble("1.618");

print(a.toString()); // "3.14"
print(a.compareTo(b)); // 1 (since 3.14 > 2.71)

Implemented types

Comparable<Double>

Constructors

Double(double _value): Creates a Double with the specified value.
const

Properties

hashCode → int: Returns the hash code for this Double.
no setteroverride
isFinite → bool: Returns true if the value is finite.
no setter
isInfinite → bool: Returns true if the value is infinite.
no setter
isNaN → bool: Returns true if the value is NaN.
no setter
isNegative → bool: Returns true if the value is negative.
no setter
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
value → double: Returns the wrapped double value.
no setter

Methods

abs() → Double: Returns the absolute value of this Double.
ceil() → Double: Returns the ceiling of this Double.
compareTo(Double other) → int: Compares this Double with another Double.
override
floor() → Double: Returns the floor of this Double.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
round() → Double: Rounds this Double to the nearest integer.
toInt() → int: Returns the value as an int (truncated).
toString() → String: Returns a string representation of this Double.
override
truncate() → Double: Truncates this Double to an integer.

Operators

operator %(Double other) → Double
operator *(Double other) → Double
operator +(Double other) → Double: Arithmetic operators
operator -(Double other) → Double
operator /(Double other) → Double
operator <(Double other) → bool: Comparison operators
operator <=(Double other) → bool
operator ==(Object other) → bool: Returns true if this Double equals the specified object.
override
operator >(Double other) → bool
operator >=(Double other) → bool
operator unary-() → Double

Static Methods

max(double a, double b) → double: Returns the larger of two double values.
min(double a, double b) → double: Returns the smaller of two double values.
parseDouble(String str) → Double: Parses a string to a Double.
valueOf(double value) → Double: Returns a Double instance representing the specified double value.
valueOfString(String str) → Double: Returns a Double instance from a string.

Constants

MAX_VALUE → const double: Maximum finite value for a double
MIN_VALUE → const double: Minimum positive normal value for a double
NaN → const double: Not-a-Number value
NEGATIVE_INFINITY → const double: Negative infinity
POSITIVE_INFINITY → const double: Positive infinity