Cerr or clog

Question 64

Declare the array to be an integer array and to have 3 rows and 3 columns. Assume that the constant variable arraySize has been defined to be 3:

b. int table[ arraySize ][ arraySize];

Question 66

Class members are accessed via the ________ operator in conjunction with the name of an object (or reference to an object) of the class or via the ___________ operator in conjunction with a pointer to an object of the class

a. dot (.), arrow (->)

Question 67

Find the error in the following program segment. Assume the following declarations and statements:
int *zPtr; // zPtr will reference array z
int *aPtr = 0;
void *sPtr = 0;
int number;
int z[ 5 ] = { 1, 2, 3, 4, 5 };

// assign the value pointed to by sPtr to number
number = *sPtr;

a. number = *sPtr;

Question 68

What is the output of the program?

#include <iostream>
using namespace std;
int main() {
int n = 1;
while (n<5)
cout << n++;
return 0;
}

Question 69

What punctuation ends most lines of C++ code?

a.;

Question 71

Declare an array of type double called numbers with 10 elements, and initialize the elements to the values 0.0, 1.1, 2.2,..., 9.9.
Assume that the symbolic constant SIZE has been defined as 10.

b. double numbers[ SIZE ] = { 0.0, 1.1, 2.2, 3.3, 4.4, 5.5, 6.6, 7.7, 8.8, 9.9 };

Question 72

Input with the stream extraction operator >> always skips leading white-space characters in the input stream, by default

Ответ:

True False

Question 74

Write one or more statements that perform the following task for and array called “fractions”. Print array elements 6 and 9 with two digits of precision to the right of the decimal point.

d. cout << fixed << setprecision (2); cout << fractions[ 6 ] < < ' ' fractions[ 9 ] << endl;

Question 75

The modulus operator (%) can be used only with integer operands.

Ответ:

True False

Question 76

$$1 What is the output of the program below?

#include<iostream>

usingnamespace std;

int main() {

float a[7] = {1.1, 2.2, 3.3, 4.4, 5.5, 6.6, 7.7};

cout << a[3] << endl;

return 0;

}

E. 4.4

Question 77

What (if anything) prints when the following statement is performed?Assume the following variable declarations:

char s1[ 50 ] = "jack";
char s2[ 50 ] = "jill";
char s3[ 50 ] = "\0";

cout << strlen(s3) << endl;

Question 78

Write a single statement that performs the specified task. Assume that floating-point variables number1 and number2 have been declared and that number1 has been initialized to 7.3. Assume that variable ptr is of type char *. Assume that arrays s1 and s2 are each 100-element char arrays that are initialized with string literals. Assign the address of variable number1 to pointer variable fPtr.

b. fPtr = &number1;

What does the program below output?

#include<iostream>

usingnamespace std;

int main() {

int a[6] = {3,5,1,6,8,2};

int result = 0;

for (int i=0; i<6; i++)

result *= a[i];

cout << result << endl;

return 0;

} 0

Question 80

What value does size print out?
#include <iostream>
const int SIZE = 5;
struct tester
{
int array[SIZE];
enum
{
SIZE = 3
};
void size()
{
std::cout << sizeof(array) / sizeof(int);
}
};

int main(int argc, char** argv)
{
tester t;
t.size();
return 0;
}

b. 5

Question 82

What will be at output?

#include <iostream>

using namespace std;

int main() {

int a = 5;
a = *&*&*&*&a;
cout << a << "\n";

return 0;

d. 5

Question 83

A constant object must be __________; it cannot be modified after it is created

c. initialized

Question 84

What is the output of the program?
#include <iostream>
using namespace std;
int main() {
int a = 10;
if (a<10) {
cout << "A";
}
if (a%10==0) {
cout << "B";
} else {
cout << "C";
}
cout << endl;
return 0;
}