# Interface ObservableLongValue

All Superinterfaces:
  `Observable, ObservableNumberValue, ObservableValue<Number>`

All Known Implementing Classes:
  `JavaBeanLongProperty, LongBinding, LongExpression, LongProperty, LongPropertyBase, ReadOnlyJavaBeanLongProperty, ReadOnlyLongProperty, ReadOnlyLongPropertyBase, ReadOnlyLongWrapper, SimpleLongProperty, SimpleStyleableLongProperty, StyleableLongProperty`

public interface ObservableLongValue extends ObservableNumberValue
An observable long value.

Since:
  JavaFX 2.0
See Also:
  - `ObservableValue`
  - `ObservableNumberValue`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `long`
  `get()`
  Returns the current value of this `ObservableLongValue`.

  ### Methods declared in interface Observable

  `addListener, removeListener, subscribe`

  ### Methods declared in interface ObservableNumberValue

  `doubleValue, floatValue, intValue, longValue`

  ### Methods declared in interface ObservableValue

  `addListener, flatMap, getValue, map, orElse, removeListener, subscribe, subscribe, when`

- ## Method Details

  - ### get

    long get()
    Returns the current value of this `ObservableLongValue`.
    Returns:
      The current value