What is Java Class Pair?
In Java, the Pair
class is a simple data structure used to hold two related objects, often referred to as a key and a value. It is commonly used in collections or algorithms where a relationship between two objects needs to be represented. Java does not include a built-in Pair
class in its standard library, but it can be found in various libraries such as Apache Commons Lang (Pair
), JavaFX (javafx.util.Pair
), or can be easily implemented as a custom class. The Pair
class typically provides methods for accessing the two elements and overriding equals
and hashCode
for comparison.