Question 14 Which of the following C++ statements displays a random number in th
ID: 3780907 • Letter: Q
Question
Question 14
Which of the following C++ statements displays a random number in the range 1 through 10?
cout << 1 + rand() % 10;
cout << 1 + rand() % (10 -1 + 1);
cout << 1 + rand() % 10 -1 + 1;
first and second answers are correct
all of the above
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Question 15
What is the scope of the variable test? void main() { int num1 = 100; displayValue(num1); } void displayValue(int test) { cout << test << endl; }
the entire program
the main function
the displayValue function
both the main and displayValue functions
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Question 16
What is the output of the following program segment?
int main()
{
int num = 5;
cout << num <<" ";
change(num);
cout << num << endl;
return 0;
}
void change (int num)
{
num = 10;
}
5 10
5 5
10 10
10 5
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Question 17
What is the output of the following program segment?
int main()
{
int num = 5;
cout << num <<" ";
change(num);
cout << num << endl;
return 0;
}
void change (int &num)
{
num = 10;
}
5 10
5 5
10 10
10 5
Explanation / Answer
14. Which of the following C++ statements displays a random number in the range 1 through 10?
Answer : All the above
15. What is the scope of the variable test?
Answer : The displayValue function
16 . Output of the code ?
Answer : 5 , 10
17. Output of the code ?
Answer : 5, 5
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