Homework Answers
Answer: 9
Explanation:
The program trace:
mystery(648)
int a=64;
int b=8
mystery(72)
int a=7
int b=2
mystery(9)
if n<10:
return 9
so 9 will get printed
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Consider the following method: Linel: public static int mystery(int n) { Line2: if (n < 10)...
Consider the following method. public static ArrayList<Integer mystery(int n) ArrayList<Integer seg - new ArrayList<IntegerO; for (int...
Consider the following method. public static ArrayList<Integer mystery(int n) ArrayList<Integer seg - new ArrayList<IntegerO; for (int k = n; k > 0; k--) seq.add(new Integer(k+3)); return seq What is the final output of the following Java statement? System.out.println(mystery(3)); a. [1,2,4,5) b. [2,3,4,5) c. [6,5,4,3] d. [7, 7, 8, 8] e. [7,8,9, 8) O Consider the following method: public static int mystery(int[] arr, int k) ifk-0) return 0; }else{ return arr[k - 1] + mystery(arr, k-1):) The code segment below is...
What is the output of the following codes? Line1: public class ArrayCompare ! Line2: public static...
What is the output of the following codes? Line1: public class ArrayCompare ! Line2: public static void main (String[] args) { Line 3: int arr1[] = {1, 2, 3); Line4: int arr2[] = {1, 2, 3); Line5: if (arri == arr2) Line 6: System.out.println("Same"); Line 7: else Line 8: System.out.println("Not same"); Line9 : Line10: ) } Not same Same
3. Consider the mystery method given. public static int mystery ( int n) [ if (n...
3. Consider the mystery method given. public static int mystery ( int n) [ if (n == 0 ) { return 1; How do we get the values for recurse? else if (n%2 == 0 ) { int recurse = mystery ( n - 1); int result = recurse + n; return result; since n =5, we go to the else statement and do int recurse = mystery(5-1) which equals 4? why is 3 written? else { int recurse =...
Consider the following method: public static int mystery (int x, double y, char ch) { ...
Consider the following method: public static int mystery (int x, double y, char ch) { int u; if ('A' <= ch && ch <= 'R') return (2 * x + (int)(y)); else return((int)(2 * y) - x); } What is the output of the following Java statements? a. System.out.println (mystery(5, 4.3, 'B')); b. System.out.println (mystery(4, 9.7, 'v')); c. System.out.println (2 * mystery(6, 3.9, 'D'));
24) (3x2 marks) Consider the following method: public static int mysteryl (int a, int b) (...
24) (3x2 marks) Consider the following method: public static int mysteryl (int a, int b) ( int result 0: if (a <b) ( else if (a b) else ( return result: result mystery2 (a) mystery2 (a)i result - mystery2 (b) result-ab; public static int mystery2 (int x) f int countx for (int i 0; іск; i++) count +1: return counti What are the values stored in the variable result after the following method calls? a) int result mysteryl(4,1): b) int...
What is the output of the following codes? Line1: public class ArrayCompare { Line2: public static...
What is the output of the following codes? Line1: public class ArrayCompare { Line2: public static void main (String[] args) { Line 3: int arrill {1, 2, 3}; Line 4: int arr2[1 {1, 2, 3}; Line5: if (arri == arr2) Line 6: System.out.println("Same"); Line: else Line 8: System.out.println("Not game"); Line9 : Line10:) حسین Same Not same
b) Consider the following code. public static int f(int n) if (n == 1) return 0;...
b) Consider the following code. public static int f(int n) if (n == 1) return 0; else if (n % 2 == 0). return g(n/2); else return g(n+1); public static int g(int n) int r = n % 3; if (r == 0) return f(n/3); else if (r == 1) return f(n+2); else return f(2 * n); // (HERE) public static void main(String[] args) { int x = 3; System.out.println(f(x)); (1) (5 points) Draw the call stack as it would...
Recursive Tracing. For each call to the following method, indicate what value is returned: public static...
Recursive Tracing. For each call to the following method, indicate what value is returned: public static int mystery(int n) { if (n < 0) { return -mystery(-n); } else if (n == 0) { return 0; } else { return mystery(n / 10) * 10 + 9 - (n % 10); } Call Value Returned mystery(0) mystery(5) mystery(13) mystery(297) mystery(-3456) } Can any one help me with it?
on 2 Consider the following recursive method test: public static int test(String s, int last) if...
on 2 Consider the following recursive method test: public static int test(String s, int last) if (last < 0) { return 0; if (s.charAt(last) == 0) { return 2 - test(s, last - 1); return 1 + 2 test(s, last - 1); What is the output of: test("11001", 4). TTT Arial 3 (12pt) - TEE 25
Consider the following Java method: public static ArrayList<Integer nums ArrayList<Integer values new ArrayList<Integer0; for(int i=10; i<30;...
Consider the following Java method: public static ArrayList<Integer nums ArrayList<Integer values new ArrayList<Integer0; for(int i=10; i<30; i-i+3) if(i%) values.add(i); return values: What is returned after the method call nums()? a. [12] b. [13] c. [14] d. [15] e. [16] O Which of the following represents the final output of the code segment below? int k: int[]A; A new int[3]: fork-0; k<A.length;k++) A[k]-A.length-k; forſk-0; k<A.length-1; k++) A[k+1]-A[k) for(int i-0;i<A.length;i++) System.out.print(A[i]+" "); a. 222 O b. 333 c. 444 d. 555 O...
Consider the following method. public static ArrayList<Integer mystery(int n) ArrayList<Integer seg - new ArrayList<IntegerO; for (int k = n; k > 0; k--) seq.add(new Integer(k+3)); return seq What is the final output of the following Java statement? System.out.println(mystery(3)); a. [1,2,4,5) b. [2,3,4,5) c. [6,5,4,3] d. [7, 7, 8, 8] e. [7,8,9, 8) O Consider the following method: public static int mystery(int[] arr, int k) ifk-0) return 0; }else{ return arr[k - 1] + mystery(arr, k-1):) The code segment below is...
What is the output of the following codes? Line1: public class ArrayCompare ! Line2: public static void main (String[] args) { Line 3: int arr1[] = {1, 2, 3); Line4: int arr2[] = {1, 2, 3); Line5: if (arri == arr2) Line 6: System.out.println("Same"); Line 7: else Line 8: System.out.println("Not same"); Line9 : Line10: ) } Not same Same
3. Consider the mystery method given. public static int mystery ( int n) [ if (n == 0 ) { return 1; How do we get the values for recurse? else if (n%2 == 0 ) { int recurse = mystery ( n - 1); int result = recurse + n; return result; since n =5, we go to the else statement and do int recurse = mystery(5-1) which equals 4? why is 3 written? else { int recurse =...
24) (3x2 marks) Consider the following method: public static int mysteryl (int a, int b) ( int result 0: if (a <b) ( else if (a b) else ( return result: result mystery2 (a) mystery2 (a)i result - mystery2 (b) result-ab; public static int mystery2 (int x) f int countx for (int i 0; іск; i++) count +1: return counti What are the values stored in the variable result after the following method calls? a) int result mysteryl(4,1): b) int...
What is the output of the following codes? Line1: public class ArrayCompare { Line2: public static void main (String[] args) { Line 3: int arrill {1, 2, 3}; Line 4: int arr2[1 {1, 2, 3}; Line5: if (arri == arr2) Line 6: System.out.println("Same"); Line: else Line 8: System.out.println("Not game"); Line9 : Line10:) حسین Same Not same
b) Consider the following code. public static int f(int n) if (n == 1) return 0; else if (n % 2 == 0). return g(n/2); else return g(n+1); public static int g(int n) int r = n % 3; if (r == 0) return f(n/3); else if (r == 1) return f(n+2); else return f(2 * n); // (HERE) public static void main(String[] args) { int x = 3; System.out.println(f(x)); (1) (5 points) Draw the call stack as it would...
on 2 Consider the following recursive method test: public static int test(String s, int last) if (last < 0) { return 0; if (s.charAt(last) == 0) { return 2 - test(s, last - 1); return 1 + 2 test(s, last - 1); What is the output of: test("11001", 4). TTT Arial 3 (12pt) - TEE 25
Consider the following Java method: public static ArrayList<Integer nums ArrayList<Integer values new ArrayList<Integer0; for(int i=10; i<30; i-i+3) if(i%) values.add(i); return values: What is returned after the method call nums()? a. [12] b. [13] c. [14] d. [15] e. [16] O Which of the following represents the final output of the code segment below? int k: int[]A; A new int[3]: fork-0; k<A.length;k++) A[k]-A.length-k; forſk-0; k<A.length-1; k++) A[k+1]-A[k) for(int i-0;i<A.length;i++) System.out.print(A[i]+" "); a. 222 O b. 333 c. 444 d. 555 O...
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