What is a functional interface?
An example of an AI chatbot conversation about functional interfaces in programming.
Can you explain what a functional interface is?
A functional interface is an interface that has exactly one abstract method, allowing it to be used as the assignment target for a lambda expression.
Can you give me an example of a functional interface?
Sure! The Runnable interface in Java is a classic example. It has a single method, run(), which can be implemented using a lambda expression.
Why are functional interfaces important in programming?
They enable functional programming techniques, allowing for cleaner and more concise code, especially when using lambda expressions.
Are there any built-in functional interfaces in Java?
Yes, Java provides several built-in functional interfaces like Predicate, Function, and Consumer in the java.util.function package.
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