7. Object-oriented programming. For each description on the left, choose the best-matching Java operator, method, or keyword on the right. Use each letter at most once. A. class Checks whether two strings refer to the same memory address. B. final Checks whether two strings refer to the same sequence C. new of characters. D. null Signifies a reference to the invoking object within an E. private instance method. F. public Signifies a reference to no object. G. static Signifies a method that is not an instance method. H. this I. void Used to call an instance method of an object. J. . operator Used to invoke a constructor. K. = operator L. == operator Helps enforce encapsulation