In Java, a Tuple is a data structure that can hold a fixed number of elements, often of different types, in a single unit. Although Java does not have a built-in Tuple class, libraries like JavaFX, Apache Commons Lang, or Vavr provide tuple implementations. For example, a pair (2-tuple) might store a key-value pair, while a triplet (3-tuple) might represent three related values.
Tuples are immutable, meaning their contents cannot be changed after creation. They are useful for grouping data without creating a custom class. However, they lack semantic meaning compared to custom objects, which makes code less readable in some cases.
