Computer Science and C++ Quiz Answers, Page 3
Question #21
What does the code "cout<<(0==0);" print?
0
1
Compiler error: Lvalue required
Question #22
According to the ANSI C++ standard, what does the getch() do?
Reads in a character
Checks the keyboard buffer
Nothing (getch() is not an ANSI C++ function)
Question #23
If the program completes executing successfully, what value should the function main() return?
0
1
void
Question #24
C is to C++ as 1 is to
What the heck?
2
10
Question #25
Which of the following sorts is quickest when sorting the following set: 1 2 3 5 4
Quick Sort
Bubble Sort
Merge Sort
Question #26
What does the following code do:
int foo (int x, int y)
{
cout << x << y ;
}
int c=0;
foo( c++, c );
Undefined
01
00
Question #27
What is the maximum value of an unsigned char?
255
256
128
Question #28
In the following declaration of main, "int main(int argc, char *argv[])", to what does argv[0] usually correspond?
The first argument passed into the program
The program name
You can't define main like that
Question #29
In which header file is isalpha() declared?
conio.h
stdio.h
ctype.h
Question #30
What will happen when the following code is run:
int x;
while(x<100)
{
cout<<x;
x++;
}
The computer will output "0123...99"
The computer will output "0123...100"
The output is undefined
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