What is the difference between Func and Predicate delegates in C#?

In C#, delegates Func and Predicate are used to represent methods, but they have different purposes and signatures:

• Func<T, TResult> — a delegate that takes one or more parameters and returns a value of type TResult. It can have from 0 to 16 parameters, with the last parameter always being the return type.

• Predicate<T> — a delegate that takes a single parameter of type T and returns a bool. It is used for condition checking (predicates).

Thus, Predicate<T> is a special case of Func<T, bool>. For example:

Func<int, string> funcExample = x => x.ToString();
Predicate<int> predicateExample = x => x > 0;

Predicate is convenient for methods where you need to check a condition and get a boolean result, such as filtering collections.