____ 1. Assume you have the following declaration char nameList[100];. Which of the following ranges is...
____ 1. Assume you have the following declaration char nameList[100];. Which of the following ranges is valid for the index of the array nameList?
|
a. |
0 through 99 |
c. |
1 through 100 |
|
b. |
0 through 100 |
d. |
1 through 101 |
____ 2. Assume you have the following declaration int beta[50];. Which of the following is a valid element of beta?
|
a. |
beta['0'] |
c. |
beta[0] |
|
b. |
beta['1'] |
d. |
beta[50] |
____ 3. Suppose that sales is an array of 50 components of type double. Which of the following correctly initializes the array sales?
|
a. |
for (int 1 = 1; j <= 49; j++) sales[j] = 0; |
|
b. |
for (int j = 1; j <= 50; j++) sales[j] = 0; |
|
c. |
for (int j = 0; j <= 49; j++) sales[j] = 0.0; |
|
d. |
for (int j = 0; j <= 50; j++) sales[j] = 0.0; |
____ 4 What is stored in alpha after the following code executes?
int alpha[5];
int j;
for (j = 0; j < 5; j++)
{
alpha[j] = 2 * j;
if (j % 2 == 1)
alpha[j - 1] = alpha[j] + j;
}
|
a. |
alpha = {0, 2, 4, 6, 8} |
|
b. |
alpha = {0, 2, 9, 6, 8} |
|
c. |
alpha = {0, 3, 4, 7, 8} |
|
d. |
alpha = {3, 2, 9, 6, 8} |
|
b. |
8 |
d. |
10 |
Programming Questions
Write a C++ program that lets the user enter rainfall for each of 12 months into an array of doubles. The program should calculate and display the total rainfall for the year and the average monthly rainfall.
Homework Answers
1. a) 0 through 99
2. c) beta[0]
3. c) for (int j = 0; j <= 49; j++)
sales[j] = 0.0;
4. a) alpha = {0, 2, 4, 6, 8}
Program:
#include <iostream>
using namespace std;
int main()
{
double rainfall[12];
double total=0.0, avg=0.0;
for(int i=0;i<12;i++)
{
cout << "Enter " << i+1
<<" month rainfall : ";
cin >> rainfall[i];
total += rainfall[i];
}
cout << "Total rainfall of the year : " << total << endl;
avg = total/12;
cout << "Average monthly rainfall is : "
<< avg << endl;
return 0;
}
Add Answer to:
____ 1. Assume you have the
following declaration char nameList[100];. Which of the following
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