Package android.util

Class Pair<F,​S>

  • public class Pair<F,​S>
extends java.lang.Object
    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.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      F first  
      S second  

    • Constructor Summary

      Constructors 
      Constructor Description
      Pair​(F first, S second)
      Constructor for a Pair.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static <A,​B>
      Pair<A,​B>      		 create​(A a, B b)
      Convenience method for creating an appropriately typed pair.
      boolean equals​(java.lang.Object o)
      Checks the two objects for equality by delegating to their respective Object.equals(Object) methods.
      int hashCode()
      Compute a hash code using the hash codes of the underlying objects
      java.lang.String toString()  

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • first

        public final F first

      • second

        public final S second

    • Constructor Detail

      • Pair

        public Pair​(F first,
            S second)
        Constructor for a Pair.
        Parameters:
        first - the first object in the Pair
        second - the second object in the pair

    • Method Detail

      • equals

        public boolean equals​(java.lang.Object o)
        Checks the two objects for equality by delegating to their respective Object.equals(Object) methods.
        Overrides:
        equals in class java.lang.Object
        Parameters:
        o - the Pair to which this one is to be checked for equality
        Returns:
        true if the underlying objects of the Pair are both considered equal

      • hashCode

        public int hashCode()
        Compute a hash code using the hash codes of the underlying objects
        Overrides:
        hashCode in class java.lang.Object
        Returns:
        a hashcode of the Pair

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object

      • create

        public static <A,​B> Pair<A,​B> create​(A a,
                                                 B b)
        Convenience method for creating an appropriately typed pair.
        Parameters:
        a - the first object in the Pair
        b - the second object in the pair
        Returns:
        a Pair that is templatized with the types of a and b