I think it has do with #3
#include <iostream> using namespace std; // Class Definition for the MyInt class class MyInt { private: int theValue; public: MyInt( ); MyInt( int ); void setValue( int ); int getValue ( ); float reciprocal( ); int bogus; // a public data member }; // The class implementation for the MyInt class // Constructors MyInt::MyInt( ) { theValue = 0; bogus = 5; } MyInt::MyInt( int n ) { theValue = n; bogus = 3; } // Getters and setters void MyInt::setValue( int n ) { theValue = n; } int MyInt::getValue( ) { return theValue; } // Calculation functions float MyInt::reciprocal( ) { return 1.0 / theValue; } // The Driver int main ( ) { // Test the Constructors /* 1 */ MyInt num1; /* 2 */ MyInt num2( 2 ); /* 3 */ cout << "\nThe value of bogus in num1 is " << bogus; // Test setter /* 4 */ num1.setValue( 5 ); /* 5 */ cout << "\nnum1's new value = " << num1.getValue( ); // Test reciprocal /* 6 */ cout << "\nnum2's reciprocal = " << num2.reciprocal( ); cout << "\nTest complete ... hit Enter to exit."; system("PAUSE"); return 0;