TabSet (Java SE 12 & JDK 12 )
Keywords: javax.swing.text.TabSet class

Module java.desktop
Package javax.swing.text

## Class TabSet

- java.lang.Object
- - javax.swing.text.TabSet

- All Implemented Interfaces:
    `Serializable`

      public class TabSet
      extends Object
      implements Serializable

  A TabSet is comprised of many TabStops. It offers methods for locating the closest TabStop to a given position and finding all the potential TabStops. It is also immutable.

  Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans™ has been added to the `java.beans` package. Please see `XMLEncoder`.

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `TabSet​(TabStop[] tabs)` | Creates and returns an instance of TabSet.

  - ### Method Summary

    Modifier and Type | Method | Description
    --- | --- | ---
    `boolean` | `equals​(Object o)` | Indicates whether this `TabSet` is equal to another one.
    `TabStop` | `getTab​(int index)` | Returns the TabStop at index `index`.
    `TabStop` | `getTabAfter​(float location)` | Returns the Tab instance after `location`.
    `int` | `getTabCount()` | Returns the number of Tab instances the receiver contains.
    `int` | `getTabIndex​(TabStop tab)` | Returns the index of the TabStop `tab`, or -1 if `tab` is not contained in the receiver.
    `int` | `getTabIndexAfter​(float location)` | Returns the index of the Tab to be used after `location`.
    `int` | `hashCode()` | Returns a hashcode for this set of TabStops.
    `String` | `toString()` | Returns the string representation of the set of tabs.

    - ### Methods declared in class java.lang.Object

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

- - ### Constructor Detail

    - #### TabSet

          public TabSet​(TabStop[] tabs)

      Creates and returns an instance of TabSet. The array of Tabs passed in must be sorted in ascending order.
      Parameters:
        `tabs` - the TabStops to initialize the TabSet

  - ### Method Detail

    - #### getTabCount

          public int getTabCount()

      Returns the number of Tab instances the receiver contains.
      Returns:
        the number of Tab instances the receiver contains

    - #### getTab

          public TabStop getTab​(int index)

      Returns the TabStop at index `index`. This will throw an IllegalArgumentException if `index` is outside the range of tabs.
      Parameters:
        `index` - which TapStop to return
      Returns:
        the TabStop at index `index`

    - #### getTabAfter

          public TabStop getTabAfter​(float location)

      Returns the Tab instance after `location`. This will return null if there are no tabs after `location`.
      Parameters:
        `location` - location to find a Tab after
      Returns:
        the Tab instance after `location`

    - #### getTabIndex

          public int getTabIndex​(TabStop tab)

      Returns the index of the TabStop `tab`, or -1 if `tab` is not contained in the receiver.
      Parameters:
        `tab` - the TabStop to find
      Returns:
        the index of the TabStop `tab`, or -1 if `tab` is not contained in the receiver.

    - #### getTabIndexAfter

          public int getTabIndexAfter​(float location)

      Returns the index of the Tab to be used after `location`. This will return -1 if there are no tabs after `location`.
      Parameters:
        `location` - location to find a Tab after
      Returns:
        the index of the Tab to be used after `location`

    - #### equals

          public boolean equals​(Object o)

      Indicates whether this `TabSet` is equal to another one.
      Overrides:
        `equals` in class `Object`
      Parameters:
        `o` - the `TabSet` instance which this instance should be compared to.
      Returns:
        `true` if `o` is the instance of `TabSet`, has the same number of `TabStop`s and they are all equal, `false` otherwise.
      Since:
        1.5
      See Also:
        `Object.hashCode()`, `HashMap`

    - #### hashCode

          public int hashCode()

      Returns a hashcode for this set of TabStops.
      Overrides:
        `hashCode` in class `Object`
      Returns:
        a hashcode value for this set of TabStops.
      Since:
        1.5
      See Also:
        `Object.equals(java.lang.Object)`, `System.identityHashCode(java.lang.Object)`

    - #### toString

          public String toString()

      Returns the string representation of the set of tabs.
      Overrides:
        `toString` in class `Object`
      Returns:
        a string representation of the object.