Consider the following method: public static void mystery(int x) { int y = 0; while (x % 2 == 0) { y++; x = x / 2; } System.out.println(x + " " + y); } For each of the following calls, indicate the output that the preceding method produces: mystery(19); mystery(42); mystery(48); mystery(40); mystery(64);

Consider the following method: public static void mystery(int x) { int y = 0; while (x % 2 == 0) { y++; x = x / 2; } System.out.println(x + " " + y); } For each of the following calls, indicate the output that the preceding method produces: mystery(19); mystery(42); mystery(48); mystery(40); mystery(64);

Programming Logic & Design Comprehensive

9th Edition

ISBN:9781337669405

Author:FARRELL

Publisher:FARRELL

Chapter9: Advanced Modularization Techniques

Section: Chapter Questions

Problem 13RQ

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Consider the following method: public static void mystery2(int n) { if (n > 100) { System.out.print(n); } else { mystery2(2 * n); System.out.print(", " + n); } } For each of the following calls, indicate the output that is produced by the method: a. mystery2(113); b. mystery2(70); c. mystery2(42); d. mystery2(30); e. mystery2(10);
10. public static void methodl (int i, int num) { for (int j = 1; j <= i; j++) { " "); System.out.print (num + num *= 2; } System.out.println(); } public static void main(String[] args) { int i = 1; while (i <= 6) { methodl (i, 2); i++; }
1- question Given the following method; public static void mystery(int x) { int z = 10; if (Z <= x) Z--; z++; System.out.println(z); } What is the output of mystery(30)? a. 9 b. 10 C. 29 d. 30
public static int cube(int num { return num num num; } What is the correct statement to pass value 8 to this method and assigns its return value to a variable named result? O cube(8) = int result; int result = cube(8) O int result = O int result = int cube(8);
class Param3 { public int x; private void increase(int p) { x = x*p; } public void calculateX(int y) { increase(y); } public int getX() { return x; } } // in another class Param3 q3 = new Param3(); q3.x = 5; q3.calculateX(7); System.out.println(q3.getX()); what would be the answer for the last two lines ? also above were x = x*p do both x in here are the fields? wouldn't that be cnofusing?
Use the following methods trash() and takeOut() to answer questions (a) – (d). 1 public void trash (int x) 12 public int takeOut (int a, int b) 2 { int m, n; 13 { int d, e; 3 m = 0; 14 d = 42* a; 4 if (x > 0) 15 if (a > 0) 5 m = 4; 16 e = 2*b+d; 6 if (x > 5) 17 else 7 n = 3*m; 18 e = b+d; 8 else 19 return (e);} 9 n = 4*m; 10 int o = takeOut (m, n); 11 System.out.println ("o is: " + o);} (a) Draw separate graph for each trash() and takeOut() , then show the connection between them at call site, using the line numbers given on graph’s nodes. (b) Determine Caller, Callee, Callsite, Actual parameters and Formal parameters, in table. (c) Give all Coupling DU-pairs of last-defs and first-uses, in table. (d) find the values of m, n, a, d, b, e and o when x = -1 , 3 , 6 , in table.
public void foo4() { String s2 = "smith"; String s3 = s2; String s4 = null; String s5 = ""; String só = new String(s2); if(s2 == s3) { System.out.print("1"); } if(s2.equals(s3)) { System.out.print("2"); } if(s2 == s6) { System.out.print("3"); } if(s2.equals(s6)) { System.out.print("4"); } if(s5 == s4) { System.out.print("5"); } if(s4.equals(s5)) { System.out.print("6"); } 3//end of foo4() Examine and trace the method foo4() above, which statement IS true? O The method will print out "356" on screen. The method will print out "1234" on screen. The method will print out "123" on screen. The method will print out "124" on screen.
public static void printIt(int value) { if(value 0) { } System.out.println("Play a paladin"); System.out.println("Play a white mage"); }else { } }else if (value < 15) { System.out.println("Play a black mage"); System.out.println("Play a monk"); } else { public static void main(String[] args) { printit (5); printit (10); printit (15); Play a black mage Play a white mage (nothing/they are all printed) Play a paladin Play a monk
8 - question Given the following method; public void mysteryXY (int x, int y) { if (y == 1) { System.out.print (x); } else { System.out.print (x * y + " "); mysteryXY(x, y - 1); System.out.print(", " + x * y); } } What is the output produced by following method call: mysteryXY(4, 3); а. 16, 12, 8, 4, 8, 12, 16 b. 12, 8, 4, 8, 12 с. 8,4, 8 d. 4
public class MysteryReturn2 {3 public static void main(String[] args)4 {5 int x = 1;6 int y = 2;7 int z = 3;89 z = mystery(x, z, y);10 System.out.println(x + " " + y + " " + z);11 }1213 public static int mystery(int c, a, int b);14 {15 c--;16 a = 2 * b + c;17 b = a - 1;18 System.out.println(b + " " + c);1920 return a;21 }22 } 1. Line 13 contains 2 errors. What are they? 2. Rewrite line 13 with the errors identifed in Question 1 corrected.
public class MysteryReturn2 {3 public static void main(String[] args)4 {5 int x = 1;6 int y = 2;7 int z = 3;89 z = mystery(x, z, y);10 System.out.println(x + " " + y + " " + z);11 }1213 public static int mystery(int c, a, int b);14 {15 c--;16 a = 2 * b + c;17 b = a - 1;18 System.out.println(b + " " + c);1920 return a;21 }22 } 1. The mystery method has three parameter variables, a, b, and c. What is the scope of these variables (that is, where can they be used by their name)?
13 - question Given the following method; public static int mystery (int x, int y) { if (x < 0) { return -mystery (-x, y); } else if (y < 0) { return -mystery (x, -y); } else if (x == 0 && y == 0) { return 0; } else { return 100 * mystery (x / 10, y / 10) + 10 * (x 8 10) + y 8 10; } } What is the value returned by method call: mystery(-7, 4) а. -74 b. -174 С. 74 d. 174