Review the errоr free lines оf cоde below. public clаss A { // In A.jаvа public String toString() { return "A"; } public String sA() { return "1"; } public int valA = 1; } public class B extends A { //In B.java public String toString() { return "B"; } public String sB() { return "2"; } public int valB = 2;}public class C extends B {} //In C.javapublic class D extends A {} //In D.javaFor each code snippet (A - F) below (each is independent of the others), indicate its result (on the right). Assume that each snippet is run in a main method of a class. More specifically, you must indicate one of the following: the output of the code, if the code runs properly the type of runtime error (it is the name of the java class representing a kind of exception) and the statement that caused it (write the statement down), if the code compiles but doesn't run properly Which statement(s) don't compile (circle them) and why, if the code doesn't compile when put in a main method A). A a = new C(); System.out.print(((B)a).sA()); B). A a = new B(); System.out.print(a.sB()); C). B b = new C(); A a = b; System.out.print(a.toString()); D). B b = new A(); System.out.print(b.toString()); E). D d = new D(); A a = (A) d; B b = (B) a; System.out.println(b.valA + b.valB); F). C c = new C(); System.out.print((D) c);