org.apache.commons.lang3.mutable

## Class MutableObject<T>

- java.lang.Object
- - org.apache.commons.lang3.mutable.MutableObject<T>

- Type Parameters:
    `T` - the type to set and get
  All Implemented Interfaces:
    Serializable, Mutable<T>

      public class MutableObject<T>
      extends Object
      implements Mutable<T>, Serializable

  A mutable `Object` wrapper.
  Since:
    2.1
  See Also:
    Serialized Form

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `MutableObject()` Constructs a new MutableObject with the default value of `null`.
    `MutableObject(T value)` Constructs a new MutableObject with the specified value.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `equals(Object obj)` Compares this object against the specified object.
    `T` | `getValue()` Gets the value.
    `int` | `hashCode()` Returns the value's hash code or `0` if the value is `null`.
    `void` | `setValue(T value)` Sets the value.
    `String` | `toString()` Returns the String value of this mutable.

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### MutableObject

          public MutableObject()

      Constructs a new MutableObject with the default value of `null`.

    - #### MutableObject

          public MutableObject(T value)

      Constructs a new MutableObject with the specified value.
      Parameters:
        `value` - the initial value to store

  - ### Method Detail

    - #### getValue

          public T getValue()

      Gets the value.
      Specified by:
        `getValue` in interface `Mutable<T>`
      Returns:
        the value, may be null

    - #### setValue

          public void setValue(T value)

      Sets the value.
      Specified by:
        `setValue` in interface `Mutable<T>`
      Parameters:
        `value` - the value to set

    - #### equals

          public boolean equals(Object obj)

      Compares this object against the specified object. The result is `true` if and only if the argument is not `null` and is a `MutableObject` object that contains the same `T` value as this object.
      Overrides:
        `equals` in class `Object`
      Parameters:
        `obj` - the object to compare with, `null` returns `false`
      Returns:
        `true` if the objects are the same; `true` if the objects have equivalent `value` fields; `false` otherwise.

    - #### hashCode

          public int hashCode()

      Returns the value's hash code or `0` if the value is `null`.
      Overrides:
        `hashCode` in class `Object`
      Returns:
        the value's hash code or `0` if the value is `null`.

    - #### toString

          public String toString()

      Returns the String value of this mutable.
      Overrides:
        `toString` in class `Object`
      Returns:
        the mutable value as a string

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