The statement cout

Question

The statement cout << setw(4) << num4 << " ";
A) outputs the value of num4 rounded to 4 decimal places.
B) outputs "setw(4)" before the value in the variable num4.
C) outputs the first 4 digits of the number stored in num4.
D) outputs the value stored in num4 four times.
E) does none of above.

Quizplus · Accepted Answer

This statement uses the iomanip function setw() to set the width of the output to 4 characters (including any leading spaces or zeroes). It then outputs the value of num4 followed by a space. It does not round the value, print the string "setw(4)", or print only the first 4 digits of the value. Therefore, answer E is the correct choice.

The Statement Cout << Setw(4) << Num4 << " ";