OtpErlangDouble (Java-Erlang Interface Library)
Date: 2020-03-15

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## com.ericsson.otp.erlang
Class OtpErlangDouble

    java.lang.Object
      com.ericsson.otp.erlang.OtpErlangObject
          com.ericsson.otp.erlang.OtpErlangDouble

All Implemented Interfaces:
  java.io.Serializable, java.lang.Cloneable

Direct Known Subclasses:
  OtpErlangFloat

    public class OtpErlangDouble

extends OtpErlangObject

Provides a Java representation of Erlang floats and doubles. Erlang defines only one floating point numeric type, however this class and its subclass `OtpErlangFloat` are used to provide representations corresponding to the Java types Double and Float.

See Also:
  Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.ericsson.otp.erlang.OtpErlangObject
`OtpErlangObject.Hash`

Field Summary

Fields inherited from class com.ericsson.otp.erlang.OtpErlangObject
`hashCodeValue`

Constructor Summary
`OtpErlangDouble(double d)` Create an Erlang float from the given double value.
`OtpErlangDouble(OtpInputStream buf)` Create an Erlang float from a stream containing a double encoded in Erlang external format.

Method Summary
`protected int` | `doHashCode()`
`double` | `doubleValue()` Get the value, as a double.
`void` | `encode(OtpOutputStream buf)` Convert this double to the equivalent Erlang external representation.
`boolean` | `equals(java.lang.Object o)` Determine if two floats are equal.
`float` | `floatValue()` Get the value, as a float.
`java.lang.String` | `toString()` Get the string representation of this double.

Methods inherited from class com.ericsson.otp.erlang.OtpErlangObject
`bind, clone, decode, hashCode, match`

Methods inherited from class java.lang.Object
`finalize, getClass, notify, notifyAll, wait, wait, wait`

Constructor Detail

### OtpErlangDouble

    public OtpErlangDouble(double d)

  Create an Erlang float from the given double value.

### OtpErlangDouble

    public OtpErlangDouble(OtpInputStream buf)
                    throws OtpErlangDecodeException

  Create an Erlang float from a stream containing a double encoded in Erlang external format.

  Parameters:
    `buf` - the stream containing the encoded value.
  Throws:
    `OtpErlangDecodeException` - if the buffer does not contain a valid external representation of an Erlang float.

Method Detail

### doubleValue

    public double doubleValue()

  Get the value, as a double.

  Returns:
    the value of this object, as a double.

### floatValue

    public float floatValue()
                     throws OtpErlangRangeException

  Get the value, as a float.

  Returns:
    the value of this object, as a float.
  Throws:
    `OtpErlangRangeException` - if the value cannot be represented as a float.

### toString

    public java.lang.String toString()

  Get the string representation of this double.

  Specified by:
    `toString` in class `OtpErlangObject`
  Returns:
    the string representation of this double.

### encode

    public void encode(OtpOutputStream buf)

  Convert this double to the equivalent Erlang external representation.

  Specified by:
    `encode` in class `OtpErlangObject`
  Parameters:
    `buf` - an output stream to which the encoded value should be written.

### equals

    public boolean equals(java.lang.Object o)

  Determine if two floats are equal. Floats are equal if they contain the same value.

  Specified by:
    `equals` in class `OtpErlangObject`
  Parameters:
    `o` - the float to compare to.
  Returns:
    true if the floats have the same value.

### doHashCode

    protected int doHashCode()

  Overrides:
    `doHashCode` in class `OtpErlangObject`

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