I need a help Java programming problem

Draw a stack diagram showing the state of the program just before the last invocation of prod completes.

public static void main(String[] args) {

System.out.println(prod(1, 4));

} // end main

public static int prod(int m, int n) {

if (m == n) {

return n;

} else {

int recurse = prod(m, n - 1);

int result = n * recurse;

return result; }

}// end prod method

Use the incremental design concept to encapsulate and generalize the following lines of code:

int [] arr = new int [10];

(for int i = 0; i < arr.length(); i++)

arr [i] = i + 2;

What is the value of the variables center and dist after executing the following statements:

(hint: review the methods findCenter & distance in the text book at pages: 169, 170)

public static void main(String[] args) {

Point blank = new Point(5, 8);

Rectangle rect = new Rectangle(0, 2, 4, 4);

Point center = findCenter(rect);

double dist = distance(center, blank);

System.out.println(dist);

}

no problem assume