Container to ease passing around a tuple of two objects. This object provides a sensible
implementation of equals(), returning true if equals() is true on each of the contained
objects.
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Last updated 2025-02-10 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-02-10 UTC."],[],[],null,["# Pair\n\nadded in [version 22.1.0](/topic/libraries/support-library/revisions) \nbelongs to Maven artifact com.android.support:support-compat:28.0.0-alpha1 \nSummary: [Fields](#lfields) \\| [Ctors](#pubctors) \\| [Methods](#pubmethods) \\| [Inherited Methods](#inhmethods) \\| [\\[Expand All\\]](#) \n\nPair\n====\n\n| This package is part of the Android [support library](/topic/libraries/support-library) which is no longer maintained. The support library has been superseded by [AndroidX](/jetpack/androidx) which is part of [Jetpack](/jetpack). We recommend using the AndroidX libraries in all new projects. You should also consider [migrating](/jetpack/androidx/migrate) existing projects to AndroidX. To find the AndroidX class that maps to this deprecated class, see the AndroidX support library [class\n| mappings](/jetpack/androidx/migrate/class-mappings).\n\n\n`\npublic\n\n\nclass\nPair\n`\n\n\n`\n\nextends Object\n\n\n`\n\n`\n\n\n`\n\n|---|--------------------------------------|\n| java.lang.Object ||\n| ↳ | android.support.v4.util.Pair\\\u003cF, S\\\u003e |\n\n\u003cbr /\u003e\n\n*** ** * ** ***\n\nContainer to ease passing around a tuple of two objects. This object provides a sensible\nimplementation of equals(), returning true if equals() is true on each of the contained\nobjects.\n\nSummary\n-------\n\n| ### Fields ||\n|-------------------|----------------------------------------------------------|\n| ` public final F` | [first](/reference/android/support/v4/util/Pair#first) |\n| ` public final S` | [second](/reference/android/support/v4/util/Pair#second) |\n\n| ### Public constructors ||\n|-------------------------------------------------------------------------------------------------------------|---|\n| ` `[Pair](/reference/android/support/v4/util/Pair#Pair(F, S))`(F first, S second) ` Constructor for a Pair. |\n\n| ### Public methods ||\n|--------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| ` static \u003cA, B\u003e `[Pair](/reference/android/support/v4/util/Pair)`\u003cA, B\u003e` | ` `[create](/reference/android/support/v4/util/Pair#create(A, B))`(A a, B b) ` Convenience method for creating an appropriately typed pair. |\n| ` boolean` | ` `[equals](/reference/android/support/v4/util/Pair#equals(java.lang.Object))`(Object o) ` Checks the two objects for equality by delegating to their respective [equals(Object)](/reference/java/lang/Object#equals(java.lang.Object)) methods. |\n| ` int` | ` `[hashCode](/reference/android/support/v4/util/Pair#hashCode())`() ` Compute a hash code using the hash codes of the underlying objects |\n| ` String` | ` `[toString](/reference/android/support/v4/util/Pair#toString())`() ` |\n\n| ### Inherited methods |\n|-----------------------|---|\n| From class ` java.lang.Object ` |-------------------|-------------------------------| | ` Object` | ` clone() ` | | ` boolean` | ` equals(Object arg0) ` | | ` void` | ` finalize() ` | | ` final Class\u003c?\u003e` | ` getClass() ` | | ` int` | ` hashCode() ` | | ` final void` | ` notify() ` | | ` final void` | ` notifyAll() ` | | ` String` | ` toString() ` | | ` final void` | ` wait(long arg0, int arg1) ` | | ` final void` | ` wait(long arg0) ` | | ` final void` | ` wait() ` | ||\n\nFields\n------\n\n### first\n\nadded in [version 22.1.0](/topic/libraries/support-library/revisions) \n\n```\nF first\n```\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n### second\n\nadded in [version 22.1.0](/topic/libraries/support-library/revisions) \n\n```\nS second\n```\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nPublic constructors\n-------------------\n\n### Pair\n\nadded in [version 22.1.0](/topic/libraries/support-library/revisions) \n\n```\nPair (F first, \n S second)\n```\n\nConstructor for a Pair.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|----------|-------------------------------------------|\n| `first` | `F`: the first object in the Pair \u003cbr /\u003e |\n| `second` | `S`: the second object in the pair \u003cbr /\u003e |\n\nPublic methods\n--------------\n\n### create\n\nadded in [version 22.1.0](/topic/libraries/support-library/revisions) \n\n```\nPair\u003cA, B\u003e create (A a, \n B b)\n```\n\nConvenience method for creating an appropriately typed pair.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|-----|-------------------------------------------|\n| `a` | `A`: the first object in the Pair \u003cbr /\u003e |\n| `b` | `B`: the second object in the pair \u003cbr /\u003e |\n\n| Returns ||\n|---------------------------------------------------------|-------------------------------------------------------------|\n| [Pair](/reference/android/support/v4/util/Pair)`\u003cA, B\u003e` | a Pair that is templatized with the types of a and b \u003cbr /\u003e |\n\n### equals\n\n```\nboolean equals (Object o)\n```\n\nChecks the two objects for equality by delegating to their respective\n[equals(Object)](/reference/java/lang/Object#equals(java.lang.Object)) methods.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|-----|----------------------------------------------------------------------------------------------------------------------|\n| `o` | `Object`: the [Pair](/reference/android/support/v4/util/Pair) to which this one is to be checked for equality \u003cbr /\u003e |\n\n| Returns ||\n|-----------|-----------------------------------------------------------------------------|\n| `boolean` | true if the underlying objects of the Pair are both considered equal \u003cbr /\u003e |\n\n### hashCode\n\n```\nint hashCode ()\n```\n\nCompute a hash code using the hash codes of the underlying objects\n\n\u003cbr /\u003e\n\n| Returns ||\n|-------|-------------------------------|\n| `int` | a hashcode of the Pair \u003cbr /\u003e |\n\n### toString\n\n```\nString toString ()\n```\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n| Returns ||\n|----------|--------|\n| `String` | \u003cbr /\u003e |\n\n-\n\n Interfaces\n ----------\n\n - [Pools.Pool](/reference/android/support/v4/util/Pools.Pool)\n-\n\n Classes\n -------\n\n - [ArrayMap](/reference/android/support/v4/util/ArrayMap)\n - [ArraySet](/reference/android/support/v4/util/ArraySet)\n - [AtomicFile](/reference/android/support/v4/util/AtomicFile)\n - [CircularArray](/reference/android/support/v4/util/CircularArray)\n - [CircularIntArray](/reference/android/support/v4/util/CircularIntArray)\n - [LongSparseArray](/reference/android/support/v4/util/LongSparseArray)\n - [LruCache](/reference/android/support/v4/util/LruCache)\n - [ObjectsCompat](/reference/android/support/v4/util/ObjectsCompat)\n - [Pair](/reference/android/support/v4/util/Pair)\n - [PatternsCompat](/reference/android/support/v4/util/PatternsCompat)\n - [Pools](/reference/android/support/v4/util/Pools)\n - [Pools.SimplePool](/reference/android/support/v4/util/Pools.SimplePool)\n - [Pools.SynchronizedPool](/reference/android/support/v4/util/Pools.SynchronizedPool)\n - [SimpleArrayMap](/reference/android/support/v4/util/SimpleArrayMap)\n - [SparseArrayCompat](/reference/android/support/v4/util/SparseArrayCompat)"]]
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