Package org.djunits.quantity

Class ElectricCharge

java.lang.Object

java.lang.Number

org.djunits.quantity.def.Quantity<ElectricCharge>

org.djunits.quantity.ElectricCharge

All Implemented Interfaces:

Serializable, Comparable<ElectricCharge>, Additive<ElectricCharge>, Scalable<ElectricCharge>, Value<ElectricCharge>

public class ElectricCharge
extends Quantity<ElectricCharge>

Electric charge denotes the electrostatic attraction or repulsion in the presence of other matter with charge, and is expressed in coulomb.

Copyright (c) 2025-2026 Delft University of Technology, Jaffalaan 5, 2628 BX Delft, the Netherlands. All rights reserved. See for project information https://djunits.org. The DJUNITS project is distributed under a three-clause BSD-style license.

Author:

Alexander Verbraeck

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ElectricCharge.Unit	ElectricCharge.Unit is a unit of electric charge and is expressed in Coulomb.

Field Summary

Fields

Modifier and Type	Field	Description
static final ElectricCharge	NaN	Constant with value NaN.
static final ElectricCharge	NEG_MAXVALUE	Constant with value -MAX_VALUE.
static final ElectricCharge	NEGATIVE_INFINITY	Constant with value NEGATIVE_INFINITY.
static final ElectricCharge	ONE	Constant with value one.
static final ElectricCharge	POS_MAXVALUE	Constant with value MAX_VALUE.
static final ElectricCharge	POSITIVE_INFINITY	Constant with value POSITIVE_INFINITY.
static final ElectricCharge	ZERO	Constant with value zero.

Fields inherited from class org.djunits.quantity.def.Quantity

si

Constructor Summary

Constructors

Constructor	Description
ElectricCharge(double valueInUnit, ElectricCharge.Unit unit)	Instantiate a ElectricCharge quantity expressed in the given unit.
ElectricCharge(double value, ElectricCharge.Unit displayUnit, boolean useSi)	Instantiate a ElectricCharge quantity with an SI or base value and a display unit.

Method Summary

Modifier and Type	Method	Description
ElectricCurrent	divide(Duration v)	Calculate the division of ElectricCharge and Duration, which results in a ElectricCurrent scalar.
ElectricPotential	divide(ElectricalCapacitance v)	Calculate the division of ElectricCharge and ElectricalCapacitance, which results in a ElectricPotential scalar.
Dimensionless	divide(ElectricCharge v)	Calculate the division of ElectricCharge and ElectricCharge, which results in a Dimensionless quantity.
Duration	divide(ElectricCurrent v)	Calculate the division of ElectricCharge and ElectricCurrent, which results in a Duration scalar.
ElectricalCapacitance	divide(ElectricPotential v)	Calculate the division of ElectricCharge and ElectricPotential, which results in a ElectricalCapacitance scalar.
ElectricCharge.Unit	getDisplayUnit()	Retrieve the unit of this Value.
ElectricCharge	instantiateSi(double siValue, UnitInterface<ElectricCharge> displayUnit)	Instantiate a quantity with an SI or base value, and a display unit.
static ElectricCharge	of(double valueInUnit, String unitString)	Returns a ElectricCharge based on a value and the textual representation of the unit, which can be localized.
static ElectricCharge	of(double valueInUnit, ElectricCharge.Unit unit)	Returns a ElectricCharge based on a value expressed in the unit.
static ElectricCharge	ofSi(double si)	Return a ElectricCharge instance based on an SI value.
static ElectricCharge	ofSi(double siValue, ElectricCharge.Unit displayUnit)	Instantiate a ElectricCharge quantity with an SI or base value and a display unit.
static ElectricCharge	valueOf(String text)	Returns a ElectricCharge representation of a textual representation of a value with a unit.

Methods inherited from class org.djunits.quantity.def.Quantity

abs, add, as, compareTo, divide, doubleValue, eq, eq0, equals, floatValue, format, format, format, ge, ge0, getInUnit, getInUnit, getName, gt, gt0, hashCode, instantiate, instantiateSi, interpolate, intValue, isRelative, le, le0, longValue, lt, lt0, max, mean, min, multiply, ne, ne0, negate, of, product, reciprocal, scaleBy, si, siUnit, subtract, sum, toString, valueOf

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.djunits.value.Scalable

divideBy

Methods inherited from interface org.djunits.value.Value

isAbsolute

Field Details

ZERO

public static final ElectricCharge ZERO

Constant with value zero.

ONE

public static final ElectricCharge ONE

Constant with value one.

NaN

public static final ElectricCharge NaN

Constant with value NaN.

POSITIVE_INFINITY

public static final ElectricCharge POSITIVE_INFINITY

Constant with value POSITIVE_INFINITY.

NEGATIVE_INFINITY

public static final ElectricCharge NEGATIVE_INFINITY

Constant with value NEGATIVE_INFINITY.

POS_MAXVALUE

public static final ElectricCharge POS_MAXVALUE

Constant with value MAX_VALUE.

NEG_MAXVALUE

public static final ElectricCharge NEG_MAXVALUE

Constant with value -MAX_VALUE.

Constructor Details

ElectricCharge

public ElectricCharge(double value,
 ElectricCharge.Unit displayUnit,
 boolean useSi)

Instantiate a ElectricCharge quantity with an SI or base value and a display unit.

Parameters:

value - the quantity value expressed in the SI or base unit

displayUnit - the display unit to use

useSi - use SI value when true, use value in unit when false

ElectricCharge

public ElectricCharge(double valueInUnit,
 ElectricCharge.Unit unit)

Instantiate a ElectricCharge quantity expressed in the given unit.

Parameters:

valueInUnit - the quantity value expressed in the given unit

unit - the unit of the value, also acts as the display unit

Method Details

ofSi

public static ElectricCharge ofSi(double si)

Return a ElectricCharge instance based on an SI value.

Parameters:

si - the si value

Returns:

the ElectricCharge instance based on an SI value

ofSi

public static ElectricCharge ofSi(double siValue,
 ElectricCharge.Unit displayUnit)

Instantiate a ElectricCharge quantity with an SI or base value and a display unit.

Parameters:

siValue - the quantity value expressed in the SI or base unit

displayUnit - the display unit to use

Returns:

the ElectricCharge instance based on an SI value with the given display unit

instantiateSi

public ElectricCharge instantiateSi(double siValue,
 UnitInterface<ElectricCharge> displayUnit)

Description copied from class: Quantity

Instantiate a quantity with an SI or base value, and a display unit.

Specified by:

instantiateSi in class Quantity<ElectricCharge>

Parameters:

siValue - the value expressed in the base (SI) unit

displayUnit - the display unit to use for the quantity

Returns:

a quantity with the given SI or base value, and the given display unit

valueOf

public static ElectricCharge valueOf(String text)

Returns a ElectricCharge representation of a textual representation of a value with a unit. The String representation that can be parsed is the double value in the unit, followed by a localized or English abbreviation of the unit. Spaces are allowed, but not required, between the value and the unit.

Parameters:

text - the textual representation to parse into a ElectricCharge

Returns:

the Scalar representation of the value in its unit

Throws:

IllegalArgumentException - when the text cannot be parsed

NullPointerException - when the text argument is null

of

public static ElectricCharge of(double valueInUnit,
 ElectricCharge.Unit unit)

Returns a ElectricCharge based on a value expressed in the unit.

Parameters:

valueInUnit - the value, expressed in the given unit

unit - the unit of the value, also acts as the display unit

Returns:

ab ElectricCharge representation of the value in its unit

of

public static ElectricCharge of(double valueInUnit,
 String unitString)

Returns a ElectricCharge based on a value and the textual representation of the unit, which can be localized.

Parameters:

valueInUnit - the value, expressed in the unit as given by unitString

unitString - the textual representation of the unit

Returns:

the Scalar representation of the value in its unit

Throws:

IllegalArgumentException - when the unit cannot be parsed or is incorrect

NullPointerException - when the unitString argument is null

getDisplayUnit

public ElectricCharge.Unit getDisplayUnit()

Description copied from interface: Value

Retrieve the unit of this Value.

Specified by:

getDisplayUnit in interface Value<ElectricCharge>

Overrides:

getDisplayUnit in class Quantity<ElectricCharge>

Returns:

the unit of this Value

divide

public Dimensionless divide(ElectricCharge v)

Calculate the division of ElectricCharge and ElectricCharge, which results in a Dimensionless quantity.

Parameters:

v - quantity

Returns:

quantity as a division of ElectricCharge and ElectricCharge

divide

public ElectricCurrent divide(Duration v)

Calculate the division of ElectricCharge and Duration, which results in a ElectricCurrent scalar.

Parameters:

v - scalar

Returns:

scalar as a division of ElectricCharge and Duration

divide

public Duration divide(ElectricCurrent v)

Calculate the division of ElectricCharge and ElectricCurrent, which results in a Duration scalar.

Parameters:

v - scalar

Returns:

scalar as a division of ElectricCharge and ElectricCurrent

divide

public ElectricalCapacitance divide(ElectricPotential v)

Calculate the division of ElectricCharge and ElectricPotential, which results in a ElectricalCapacitance scalar.

Parameters:

v - scalar

Returns:

scalar as a division of ElectricCharge and ElectricPotential

divide

public ElectricPotential divide(ElectricalCapacitance v)

Calculate the division of ElectricCharge and ElectricalCapacitance, which results in a ElectricPotential scalar.

Parameters:

v - scalar

Returns:

scalar as a division of ElectricCharge and ElectricalCapacitance