/*File:  Operators02.cpp
This C++ program illustrates the use of the 
following relational and logical operators plus 
the negation operator:

!
>=
&&
<=

This program solves the same problem as the
program named Operators01 but uses a different
formulation of the relational/logical test.

The program displays the following output on the
screen for several user input values:

Enter an upper-case letter: @
Bad input
Enter an upper-case letter: ]
Bad input
Enter an upper-case letter: Z
Thanks for the Z

************************************************/

#include 
using namespace std;

class Operators02{ 
  public:
  static void classMain(){
    Operators02* ptrToObject = new Operators02();
    ptrToObject -> doSomething();
  }//End classMain function
  //-------------------------------------------//

  //An instance function of the Operators02 class
  void doSomething(){
    //Begin sequence structure
    //Do a priming read
    char temp = 0;
    cout << "Enter an upper-case letter: ";
    cin >> temp;
    //End sequence structure

    //Begin loop structure
    //Note the negation operator in the following
    // statement.
    while(!((temp >= 'A') && (temp <= 'Z'))){
      //Outside allowable character range
      cout << "Bad input" << endl;
      cout << "Enter an upper-case letter: ";
      cin >> temp;
    }//end while loop
    //End end loop structure

    //Good input, display msg and terminate.
    cout << "Thanks for the " << temp << endl;

  }//end doSomething function
};//End Operators02 class
//---------------------------------------------//

int main(){
  Operators02::classMain();
  return 0;
}//end main

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