Information Hiding
Example of a program with a little information?hiding contained in it.
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/******************************************************* * MYCPLUS Sample Code - https://www.mycplus.com * * * * This code is made available as a service to our * * visitors and is provided strictly for the * * purpose of illustration. * * * * Please direct all inquiries to saqib at mycplus.com * *******************************************************/ #include <iostream.h> class one_datum { int data_store; public: void set(int in_value); int get_value(void); }; void one_datum::set(int in_value) { data_store = in_value; } int one_datum::get_value(void) { return data_store; } main() { one_datum dog1, dog2, dog3; int piggy; dog1.set(12); dog2.set(17); dog3.set(-13); piggy = 123; // dog1.data_store = 115; This is illegal in C++ // dog2.data_store = 211; This is illegal in C++ cout << "The value of dog1 is " << dog1.get_value() << "\n"; cout << "The value of dog2 is " << dog2.get_value() << "\n"; cout << "The value of dog3 is " << dog3.get_value() << "\n"; cout << "The value of piggy is " << piggy << "\n"; } // Result of execution // // The value of dog1 is 12 // The value of dog2 is 17 // The value of dog3 is -13 // The value of piggy is 123 |
