Question

7. PS2-P7: Formatted output: Flags, Methods, and Line Manipulators

Match the following with the listed

descriptions:
a- boolalpha/noboolalpha; b- showbase/noshowbase;

OPTIONS:
1- By default, bool-variable-values are printed as: True/False
2- By default, bool-variable-values are printed as: 1/0
3- By default, base of number is: Displayed
4- By default, base of number is: not displayed

?

A. 1; 3

B. 1; 4

C. 2; 3

D. 2; 4

Answer 1

D. 2; 4

Sample program for this is given below.

#include <iostream>
using namespace std;

main () {
bool x = false, y = true;
int n = 20;
cout << x << endl; // prints 0 for false
cout << y << endl; // prints 1 for true
cout << hex << n; // doesn't print base
}

/*
0
1
14
*/