Question 4. Given the following Java program public class Example { static int n = 3; public static void main(String[] args) { int k; k = n; Controller control = new Controller(k); control.compute(); } } class Controller { int n; Controller(int n) {this.n = n;} void compute() { int i, m; int sum = 0; String message; Functor func; for(i = n; i > 0; i--) { func = new Functor(); m = func.calculate(i); sum = sum + m; } message = “The sum of factorials from 1 to “ + n + “ is “ + sum; System.out.println(message); } } class Functor { int calculate(int n) { int temp; temp = n – 1; if (n > 0) { return n * calculate(temp); } else {return 1;} } }   *List all static variables, stack-dynamic variables, explicit heap-dynamic variables, and implicit heap-dynamic variables.

c) Draw a UML Diagram for the following source code. (CLO1, CLO2) public class MyCircle { double MyRadius= 0.0; MyCircle() { } MyÇircle(double newRadius) { MyRadius = newRadius; } double getArea() { return MyRadius * MyRadius * 3.14159;} public static void main(String[] args) { MyCircle C1 = new MyCircle(); C1 MyRadius = 2.0; MyCircle C2 = new MyCircle(); C2.MyRadius = 4.0; System.out.println(C1.getArea()); System.out println(C2,getArea(); } }

Consider the following skeletal C program: void fun1(void); /* prototype */void fun2(void); /* prototype */void fun3(void); /* prototype */void main() { int a, b, c; . . .}void fun1(void) { int b, c, d; . . .}void fun2(void) { int c, d, e; . . .}void fun3(void) { int d, e, f; . . .}Given the following calling sequences and assuming that dynamic scoping is used, whatvariables are visible during the execution of the last function? Include with each visible variablethe name of the function in which it was defined.a. main calls fun1; fun1 calls fun2; fun2 calls fun3.b. main calls fun1; fun1 calls fun3.c. main calls fun2; fun2 calls fun3; fun3 calls fun1.d. main calls fun3; fun3 calls fun1.e. main calls fun1; fun1 calls fun3; fun3 calls fun2.     Consider the following program, written in JavaScript-like syntax: // main programvar x, y, z;function sub1() {var a, y, z;. . .}function sub2() { var a, b, z; . . .}function sub3() { var a, x, w; . . .}Given the following calling sequences and…

Q) Distinguish between abstract class and interface in java language