Draw series of contour diagrams to show the state of execution of the program in Fig. 8.1 for $x=2$ and $n=3$.

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import java.util.*; class Ch8Samplel { public static void main (String [] args) { } Scanner scanner; scanner = new Scanner (System.in); int x,n,answer; System.out.println(); System.out.print ("Enter an integer for x: "); x = scanner.nextInt (); System.out.print("Enter an integer for n: "); n = scanner.next Int (); System.out.println(); } if (x>=0 && n>=0 && ! (x==0 && n==0)) { answer power (x, n) ; System.out.println("The answer is " + answer); } else System.out.println("Power not calculated"); } public static int power (int x, int n) { int answer; if (n > 0) else answer = 1; return answer; answer power (x, n-1) *x; // Line 1 // Line 2 // Line 3 // Line 4 // Line 5 // Line 6 // Line 7 // Line 8 // Line 9 // Line 10 // Line 11 // Line 12 // Line 13 // Line 14 // Line 15 // Line 16 // Line 17 // Line 18 // Line 19 // Line 20 // Line 21 // Line 22 // Line 23 // Line 24 // Line 25 // Line 26 // Line 27 // Line 28