Answer in Java, please explain answer as well.

3) Consider the following class: public class Abc ! private static int x; private int y ; public void setX(int x) { x = x;} public void setY(int num) { y = num; } public String toString() { return " X = " + x + "ItY = "+y;} public int getProduct() { return x * y ;} } Abc a; a.y = 5; a.x = 1; System.out.println("Product = " + a.y * a.x); System.out.println("Object A= "+ a); a. What are the class variables? b. What are the instance variables? C. Identify the errors, fixed them or remove them and then print the output from the following code