I have read a nice article about "How Scala killed the Strategy Pattern". In this article there is a sample Java implementation of Strategy Pattern from wikipedia but this implementation use old Java syntax (prior Java 8). I implement Scala sample using Java 8 syntax and show that how Java 8 killed the Strategy Pattern:

public class Main { 
    interface Function3 <A, B, C, R> { 
        public R apply (A a, B b, C c); 
    public static void main(String[] args) { 
        BiFunction<Integer, Integer, Integer> add = Math::addExact; 
        BiFunction<Integer, Integer, Integer> subtract = Math::subtractExact; 
        BiFunction<Integer, Integer, Integer> multiply = Math::multiplyExact; 
        Function3<BiFunction<Integer, Integer, Integer>, Integer, Integer, Integer> execute = (callback, x, y) -> callback.apply(x, y); 
        System.out.println("Add:      " + execute.apply(add, 3, 4)); 
        System.out.println("Subtract: " + execute.apply(subtract, 3, 4)); 
        System.out.println("Multiply: " + execute.apply(multiply, 3, 4)); 

This implementation is more verbose than the Scala one but it is much better than the old one.