The stream manipulator ____ sets the floating-point precision to n places.
A) setprecision(n)
B) setw(n)
C) setfill( x )
D) showbase

Question

Quizplus · Accepted Answer

The setprecision(n) function is used to set the floating-point precision to n places. This function is part of the iomanip header in C++. The setw(n) function is used to set the width of the output stream, setfill(x) is used to set the fill character, and showbase is used to show the prefix of octal or hexadecimal values. The function setprecision(n) is used to set the floating-point precision to n places. This is the most appropriate choice out of the options given. Option B (setw(n)) is used to set the width of the output stream, Option C (setfill(x)) is used to set the character used for padding when setw is used, and Option D (showbase) is used to show the base prefix for certain number formats. None of these options are the best choice for setting the floating-point precision.

The Stream Manipulator ____ Sets the Floating-Point Precision to N