We use it by writing using namespacestd; then we can access any of the object likecout,cinwithout usingstd, but if we do not use using namespace std; then we should usestd::coutetc to prevent errors. Difference between cout and std::cout in c++ We can encapsulate multiple classes into...
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using std::cin; using std::cout; using std::endl; using std::runtime_error; int main(void){ for (int i, j;cin >> i >> j; ){ try { if (j == 0) throw runtime_error("divisor is 0"); cout << i / j << endl;} ...
cin >> c;returnc =='Y'|| c =='y'; }// Print Arrayvoidsub_option_1() {do{// do something}while(again); }// Sort Ascendingvoidsub_option_2() {do{// do something}while(again); }intmain() {boolquit =false;while(!quit) {// What should I put here ?} cout <<"bye"<<...
cout<<"Please Enter the Name of a Data File: "; cin>>dataFileName; cout<<dataFileName<<endl; ifstream openDataFile(dataFileName);if(!openDataFile.is_open()) { cout<<"Error: File Not Open\n"; exit(EXIT_FAILURE); } cout << left << setw(30) <<"Students"<<"Average"<< endl;whil...
std::cout << "Exception occurred: " << e.what() << std::endl; } return 0; } In this example, the division operation numerator/denominator may throw a std::exception when the denominator is zero. The try block contains the code that might throw an exception, and the catch block catc...
std::cout << "Enter the width of the rectangle: "; std::cin >> width; Rectangle rect(length, width); // Call the friend function to calculate the area double area = calculateArea(rect); std::cout << "The area of the rectangle is: " << area << std::endl return 0;}Output...
cout << "\n\n"; return 0 ;}Explanation of the ProgramIn the above program, the function setNum() is declared as an inline function using the keyword “inline”. This function simply returns an integer. When a call to this inline function is made, the compiler replaces the calling ...
cout << "Do you want to input interest rate ? :"; cin >> choice; if (choice == 'Y' || choice == 'y') { cout << "Enter rate ?:"; cin >> rate; cout << "Simple interest is : " << simpleInterest(amount, time, rate); } else { // We are not passing rate, default ...
() iostream - it has two particularly used objects namely "cout" and "cin", please note that there several member functions of those two objects and yes cout and cin are objects not function, they have some functions like flush(), get(), put(), etc that have usage in stream ...