Double (GWT 2.8.2)

java.lang.Object
- java.lang.Number
- - java.lang.Double

All Implemented Interfaces:

Serializable, Comparable<Double>
```
public final class Double
extends Number
implements Comparable<Double>
```
Wraps a primitive double as an object.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`BYTES`
`static int`	`MAX_EXPONENT`
`static double`	`MAX_VALUE`
`static int`	`MIN_EXPONENT`
`static double`	`MIN_NORMAL`
`static double`	`MIN_VALUE`
`static double`	`NaN`
`static double`	`NEGATIVE_INFINITY`
`static double`	`POSITIVE_INFINITY`
`static int`	`SIZE`
`static Class<Double>`	`TYPE`

Constructor Summary

Constructors
Constructor and Description

Double(double value)

Double(String s)

Constructors
Constructor and Description
`Double(double value)`
`Double(String s)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected static Double`	`$create(double x)`
`protected static Double`	`$create(String s)`
`protected static boolean`	`$isInstance(Object instance)`
`byte`	`byteValue()`
`static int`	`compare(double x, double y)`
`int`	`compareTo(Double b)`
`static long`	`doubleToLongBits(double value)`
`double`	`doubleValue()`
`boolean`	`equals(Object o)`
`float`	`floatValue()`
`int`	`hashCode()` Performance caution: using Double objects as map keys is not recommended.
`static int`	`hashCode(double d)`
`int`	`intValue()`
`static boolean`	`isFinite(double x)`
`boolean`	`isInfinite()`
`static boolean`	`isInfinite(double x)`
`boolean`	`isNaN()`
`static boolean`	`isNaN(double x)`
`static double`	`longBitsToDouble(long bits)`
`long`	`longValue()`
`static double`	`max(double a, double b)`
`static double`	`min(double a, double b)`
`static double`	`parseDouble(String s)`
`short`	`shortValue()`
`static double`	`sum(double a, double b)`
`String`	`toString()`
`static String`	`toString(double b)`
`static Double`	`valueOf(double d)`
`static Double`	`valueOf(String s)`

Methods inherited from class java.lang.Number
__decodeAndValidateInt, __decodeNumberString, __parseAndValidateDouble, __parseAndValidateInt, __parseAndValidateLong

Methods inherited from class java.lang.Object
finalize, getClass

Methods inherited from interface java.lang.Comparable
$isInstance

Field Detail
- MAX_VALUE
```
public static final double MAX_VALUE
```
  See Also:
  
  Constant Field Values
- MIN_VALUE
```
public static final double MIN_VALUE
```
  See Also:
  
  Constant Field Values
- MIN_NORMAL
```
public static final double MIN_NORMAL
```
  See Also:
  
  Constant Field Values
- MAX_EXPONENT
```
public static final int MAX_EXPONENT
```
  See Also:
  
  Constant Field Values
- MIN_EXPONENT
```
public static final int MIN_EXPONENT
```
  See Also:
  
  Constant Field Values
- NaN
```
public static final double NaN
```
  See Also:
  
  Constant Field Values
- NEGATIVE_INFINITY
```
public static final double NEGATIVE_INFINITY
```
  See Also:
  
  Constant Field Values
- POSITIVE_INFINITY
```
public static final double POSITIVE_INFINITY
```
  See Also:
  
  Constant Field Values
- SIZE
```
public static final int SIZE
```
  See Also:
  
  Constant Field Values
- BYTES
```
public static final int BYTES
```
  See Also:
  
  Constant Field Values
- TYPE
```
public static final Class<Double> TYPE
```

Constructor Detail

Double
```
public Double(double value)
```

Double
```
public Double(String s)
```

Method Detail

compare

public static int compare(double x,
                          double y)

doubleToLongBits

public static long doubleToLongBits(double value)

hashCode
```
public static int hashCode(double d)
```

isFinite

@JsMethod(namespace="<window>")
public static boolean isFinite(double x)

isInfinite

public static boolean isInfinite(double x)

isNaN

@JsMethod(namespace="<window>")
public static boolean isNaN(double x)

longBitsToDouble

public static double longBitsToDouble(long bits)

max

public static double max(double a,
                         double b)

min

public static double min(double a,
                         double b)

parseDouble

public static double parseDouble(String s)
                          throws NumberFormatException

Throws:: NumberFormatException

sum

public static double sum(double a,
                         double b)

toString

public static String toString(double b)

valueOf

public static Double valueOf(double d)

valueOf

public static Double valueOf(String s)
                      throws NumberFormatException

Throws:: NumberFormatException

byteValue
```
public byte byteValue()
```
Overrides:

byteValue in class Number

compareTo
```
public int compareTo(Double b)
```
Specified by:

compareTo in interface Comparable<Double>

doubleValue
```
public double doubleValue()
```
Specified by:

doubleValue in class Number

equals
```
public boolean equals(Object o)
```
Overrides:

equals in class Object

floatValue
```
public float floatValue()
```
Specified by:

floatValue in class Number

hashCode
```
public int hashCode()
```
Performance caution: using Double objects as map keys is not recommended. Using double values as keys is generally a bad idea due to difficulty determining exact equality. In addition, there is no efficient JavaScript equivalent of doubleToIntBits. As a result, this method computes a hash code by truncating the whole number portion of the double, which may lead to poor performance for certain value sets if Doubles are used as keys in a HashMap.

Overrides:

hashCode in class Object

intValue
```
public int intValue()
```
Specified by:

intValue in class Number

isInfinite
```
public boolean isInfinite()
```

isNaN
```
public boolean isNaN()
```

longValue
```
public long longValue()
```
Specified by:

longValue in class Number

shortValue
```
public short shortValue()
```
Overrides:

shortValue in class Number

toString
```
public String toString()
```
Overrides:

toString in class Object

$create

protected static Double $create(double x)

$create

protected static Double $create(String s)

$isInstance

@JsMethod
protected static boolean $isInstance(Object instance)

Class Double

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Number

Methods inherited from class java.lang.Object

Methods inherited from interface java.lang.Comparable

Field Detail

MAX_VALUE

MIN_VALUE

MIN_NORMAL

MAX_EXPONENT

MIN_EXPONENT

NaN

NEGATIVE_INFINITY

POSITIVE_INFINITY

SIZE

BYTES

TYPE

Constructor Detail

Double

Double

Method Detail

compare

doubleToLongBits

hashCode

isFinite

isInfinite

isNaN

longBitsToDouble

max

min

parseDouble

sum

toString

valueOf

valueOf

byteValue

compareTo

doubleValue

equals

floatValue

hashCode

intValue

isInfinite

isNaN

longValue

shortValue

toString

$create

$create

$isInstance