hypotenusecalculator.cpp

C++大学简明教程,解压就行没有密码。希望对大家有用

// Tutorial 10: HypotenuseCalculator.cpp
// This program finds and displays hypotenuse of a triangle
// whose sides are entered by the user.
#include <iostream> // required to perform C++ stream I/O
#include <iomanip>  // required for parameterized stream manipulators
#include <cmath>    // required to access function sqrt

using namespace std; // for accessing C++ Standard Library members

// function main begins program execution
int main()
{
   // define variables
   double sideA; // stores length of side A
   double sideB; // stores length of side B

   // get input
   cout << "\nEnter length of side A: ";
   cin >> sideA;

   cout << "Enter length of side B: ";
   cin >> sideB;

   // display an error message if the user enters invalid input
   if ( sideA <= 0 || sideB <= 0 )
   {
      cout << "You must enter positive numbers.\n" << endl;
   } // end if

   return 0; // indicate that program ended successfully

} // end function main


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