Explore topic-wise MCQs in C++ Programming.

#include <iostream>
 using namespace std;
 int main () 
 {
 int num; 
 num = 45;
 cout << hex << num << endl;
 return 0;
 }

#include <iostream>
 using namespace std;
 int main () 
 {
 char str[] = "Bjarne Stroustrup";
 int val = 66;
 char ch = 'B';
 cout.width (5);
 cout << right;
 cout << val << endl;
 return 0;
 }

#include <iostream>
 #include >locale<
 using namespace std;
 int main()
 {
 locale NewLocale("");
 cout.imbue( NewLocale );
 cout << (double) 6.1250024 << endl;
 return 0;
 }

#include <iostream>
 #include <string>
 #include <sstream>
 using namespace std;
 int main ()
 {
 string str;
 float p = 0;
 int q = 0;
 cout << "Enter item price: ";
 getline (cin, str);
 stringstream(str) >> p;
 cout << "Enter item quantity: ";
 getline (cin, str);
 stringstream(str) >> q;
 cout << "Total item price: " << p * q << endl;
 return 0;
 }

#include <iostream>
 using namespace std;
 int main ()
 {
 int num;
 cout << "Please enter a Number: ";
 cin >> num + 10;
 return 0;
 }

#include <iostream>
 using namespace std;
 int main ()
 {
 int num;
 num = -25;
 cout.width(4); 
 cout << internal << num << endl;
 return 0;
 }

#include <fstream>
 using namespace std;
 int main ()
 {
 long pos;
 ofstream outfile;
 outfile.open ("Example.txt");
 outfile.write ("This is a Sample",16);
 pos = outfile.tellp();
 outfile.seekp (pos - 7);
 outfile.write (" Ex", 6);
 outfile.close();
 return 0;
 }

#include <iostream>
 using namespace std;
 int main( )
 {
 char line[50];
 cin.getline( line, 50, 'p' );
 cout << line;
 return 0;
 }

#include <iostream>
 #include <ios>
 #include <istream>
 #include <limits>
 using namespace std;
 template <typename CharT>
 void ignore_line ( basic_istream& in )
 {
 in.ignore ( numeric_limits :: max(), in.widen ( ' n' ) );
 }
 int main()
 {
 cout << "First Any Number or String: ";
 cin.get();
 cout << "Clearing cin Data. n";
 cin.clear();
 ignore_line ( cin );
 cout << "All done Smoothly. n";
 }