Predicate - Predefined
Q1: What is a Predicate in Java 8?
A: A Predicate is a functional interface that represents a boolean-valued function of one argument, commonly used for filtering data.
Q2: How can you combine multiple predicates in Java 8?
A: Predicates can be combined using methods like and(), or(), and negate() to create complex logical conditions.
Q3: What is the purpose of the test() method in a Predicate?
A: The test() method takes an argument and returns true or false based on the condition defined by the Predicate.
Q4: Provide an example of using Predicate for filtering a collection.
A: An example is using List.stream().filter(Predicate) to filter elements that satisfy a given condition.
Q5: How does Predicate contribute to code readability and maintainability?
A: It allows the creation of reusable and composable conditions, enhancing the readability and maintainability of code.
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