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- //: C03:Menu.cpp
- // From Thinking in C++, 2nd Edition
- // Available at http://www.BruceEckel.com
- // (c) Bruce Eckel 1999
- // Copyright notice in Copyright.txt
- // Simple menu program demonstrating
- // the use of "break" and "continue"
- #include <iostream>
- using namespace std;
-
- int main() {
- char c; // To hold response
- while(true) {
- cout << "MAIN MENU:" << endl;
- cout << "l: left, r: right, q: quit -> ";
- cin >> c;
- if(c == 'q')
- break; // Out of "while(1)"
- if(c == 'l') {
- cout << "LEFT MENU:" << endl;
- cout << "select a or b: ";
- cin >> c;
- if(c == 'a') {
- cout << "you chose 'a'" << endl;
- continue; // Back to main menu
- }
- if(c == 'b') {
- cout << "you chose 'b'" << endl;
- continue; // Back to main menu
- }
- else {
- cout << "you didn't choose a or b!"
- << endl;
- continue; // Back to main menu
- }
- }
- if(c == 'r') {
- cout << "RIGHT MENU:" << endl;
- cout << "select c or d: ";
- cin >> c;
- if(c == 'c') {
- cout << "you chose 'c'" << endl;
- continue; // Back to main menu
- }
- if(c == 'd') {
- cout << "you chose 'd'" << endl;
- continue; // Back to main menu
- }
- else {
- cout << "you didn't choose c or d!"
- << endl;
- continue; // Back to main menu
- }
- }
- cout << "you must type l or r or q!" << endl;
- }
- cout << "quitting menu..." << endl;
- } ///:~
-