What is the function of Predicate in Java?

In Java, Predicate is a functional interface that represents a predicate used to determine if an object meets a certain condition. The Predicate interface defines an abstract method named test, which takes a generic type parameter and returns a boolean value to indicate whether the object meets the condition.

The Predicate interface can be used to filter and select elements in a collection, perform conditional checks, and other operations. By implementing the Predicate interface and overriding the test method, custom conditions can be defined and applied flexibly in various scenarios, such as filtering elements in a collection and selecting objects that meet certain conditions. The method of the Predicate interface returns true if the object meets the condition, and false if it does not.

In Java, the Predicate interface is commonly used with Lambda expressions to simplify code and implement the features of functional programming. By using the Predicate interface, more flexible and concise conditional checks and filtering operations can be achieved.