1) Which of the following statements a. int c = 20 + (int) (Math.random () * 100); generates a random integer between b. int c = 20 + (Math.random () * 100); 20 and 100 both inclusive? c. int c = 20 + (Math.random () * 81); d.int c = 20 + (int) (Math.random () * 81); 2) How may a for-loop end up in an infinite loop? a. Forget the loop counter update b. No loop condition c. Loop condition is never reached d. All of the above 3) An else or else-if statement in Java cannot exist alone without an if а. True b. False statement. 4) How many times this for-loop will repeat? a. 20 times b. zero times c. infinite number of times d. 1 time int i=20 While (i>0) System.out.println ("CSCI250"); i++ ; = 0; i <= 10; i++) System.out.println (i); for (int i 5) Which of the for-loop statements is equivalent to the below do-while loop? int i = 0; a. b. for (int i = 0; i < 10; ) do { System.out.println (i); i++ ; System.out.println (i++); ) while (i < 10); С. for (int i = 0; i > 10; i++) System.out.println (i); d. for (int i = 1; i <= 10; i++) System.out.println (i); 6) Update the below code to output the even values of i, but three numbers per line. int i = 0; while (i <=120); { System.out.println (i); i++;

1) Which of the following statements a. int c = 20 + (int) (Math.random () * 100); generates a random integer between b. int c = 20 + (Math.random () * 100); 20 and 100 both inclusive? c. int c = 20 + (Math.random () * 81); d.int c = 20 + (int) (Math.random () * 81); 2) How may a for-loop end up in an infinite loop? a. Forget the loop counter update b. No loop condition c. Loop condition is never reached d. All of the above 3) An else or else-if statement in Java cannot exist alone without an if а. True b. False statement. 4) How many times this for-loop will repeat? a. 20 times b. zero times c. infinite number of times d. 1 time int i=20 While (i>0) System.out.println ("CSCI250"); i++ ; = 0; i <= 10; i++) System.out.println (i); for (int i 5) Which of the for-loop statements is equivalent to the below do-while loop? int i = 0; a. b. for (int i = 0; i < 10; ) do { System.out.println (i); i++ ; System.out.println (i++); ) while (i < 10); С. for (int i = 0; i > 10; i++) System.out.println (i); d. for (int i = 1; i <= 10; i++) System.out.println (i); 6) Update the below code to output the even values of i, but three numbers per line. int i = 0; while (i <=120); { System.out.println (i); i++;

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter15: Recursion

Section: Chapter Questions

Problem 15SA

See similar textbooks

Similar questions

In each of the following code snippets, data is copied from x to y. How many bytes of data arecopied? The answer should be a C expression.Example: int x[10], y[10];...for (int i=0; i<10; i++)x[i] = y[i];Answer: 10*sizeof(int)Example: int *x, *y; ...; y = x;Answer: sizeof(int*) (e) int x=10, y=x;(f) int x[10]; int *y = x;(g) int x[10] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};void f(int y[5]) { ... }int main() { f(x); }(h) int x[10], y[10];...memcpy(y, x, 5*sizeof(int));
Given the declaration:int num1, num2;int *p1;int *p2;double *p3;Mark the following statements as valid or invalid. If a statement is invalid, explain why. a. p1 = &num1;b. num2 = num1 - *p2;c. p3 = p2;d. *p3 = num1;e. *p3 = *p1;f. num1 5 p2;g. p1 = &p2;h. p3 = &num1;i. num1 = *p3;j. num2 = &p1;
2. A truth table shows, for the various true or false values of boolean variables, what the result ofa boolean condition is. Fill in the following truth table. Assume that a, b and c are booleanvariables.a b c a && (!b || c)false false falsefalse false truefalse true falsefalse true truetrue false falsetrue false truetrue true falsetrue true true
1. What is the output of the following program segment: C++ int temp[5];for (int i = 0; i < 5; i++) temp[i] = 2 * i - 3; for (int i = 0; i < 5; i++) cout << temp[i] << " "; cout << endl;temp[0] = temp[4];temp[4] = temp[1];temp[2] = temp[3] + temp[0]; for (int i = 0; i < 5; i++) cout << temp[i] << " "; cout << endl;
Answer this question, also show how you have solved it. Use De Morgan’s laws to write negation for the following statement: a. The dollar is at an all-time high and the stock market is at a record low. b. This computer program has a logical error in the first ten lines or it is being run with an incomplete data set .
3 5. Say for each of the following sets of statements if they are consistent or inconsistent. A.G Ↄ H / H Ↄ J / J Ↄ K/ K Ↄ ~G b. P ≡ Q / Q v P / P Ↄ X / Q Ↄ ~P c. Z Ↄ [(P ● R) v (L ● P)] / ~P Ↄ ~Z / L Ↄ~ R
Answer the given question with a proper explanation and step-by-step solution. void One (int & first, int second) { first = second; second = first - 30; } int main() { // other code.... int j = 100; int k = 120; One (j, k); //other code .... } After the call to One (j,k) ; what are the values of j and k ?? Why? explain.
6. What is the result of the follow operations (do not use a calculator)? JAVA languagea. 45 % 6 b. 2 % 2 c. 8 % 20 d. 11 % 0
Compute the weakest preconditions of the following statements for the given postconditions. Assume all variables are integers1)a = 2*b + 1;b = a*a + 1;{ a > 10 } 2)if (b > 0)a = 4*b - 10;elsea = b + 172;{ a > 0 }
int c[2][3]; int a[2][3] ={ {5}, {1,2} }; int b[2][3] = { 2,4,6,8} for( int i=0; i<2 ;i++)5. for( int j=0; j<3 ; j++) c[i] [j] = 3 * ( a[i] [j] + b[i] [j] ); program with c++
Which is the base case for the following recursive function? void printOut( int n ) // Print nonnegative n { if( n >= 10 ) printOut( n / 10 ); printDigit( n % 10 ); } Group of answer choices A.if ( n >= 10 ) B.printOut( n/10 ); C.printDigit( n%10 ); D.if ( n >= 10) E.None of the above
Finish the function below that takes in the length of the two parallel sides of a trapezoid a and b, which are separated by a distance h, and returns its area. In [ ]: defarea_of_trapezoid(a,b,h):# YOUR CODE HEREraiseNotImplementedError() In [ ]: """Check that area_of_triangle returns the correct output for several inputs""" assert abs(area_of_trapezoid(3,3, 5) - 15) <=.1 assert abs(area_of_trapezoid(3,4, 5) - 17.5)