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  1. //Calculator example
  2.  
  3. #include <iostream>
  4. using namespace std;
  5.  
  6. int main() 
  7. {
  8.      char oper;
  9.  
  10.      float a, b;
  11. // allows user to enter operand
  12.  
  13.      cout << "Enter two operands: ";
  14.      cin >> a >> b;
  15.  
  16.      // allows user to enter operand +, -, *, /
  17.  
  18.      cout << " Enter operator: ";
  19.      cin >> oper;
  20.  
  21.      // Switch statement
  22.  
  23.      switch (oper)
  24.      {
  25.         // if operator is '+'
  26.         case '+':
  27.             cout << a + b;
  28.             break;
  29.  
  30.         // if operator is '-'
  31.         case '-':
  32.             cout << a - b;
  33.             break;
  34.  
  35.         // if operator is '*'
  36.  
  37.         case '*':
  38.            cout << a * b;
  39.            break;
  40.  
  41.         // if operator is '/'
  42.  
  43.         case '/':
  44.             cout << a/b;
  45.             break;
  46.  
  47.          // if any other operator display error
  48.        default:
  49.           cout << "Error! Incorrect operator";
  50.           break;
  51.  
  52.     }
  53.  
  54. 	return 0;
  55. }
Success #stdin #stdout 0.01s 5288KB
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stdin
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Standard input is empty
stdout
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Enter two operands:  Enter operator: Error! Incorrect operator
https://ideone.com/9Byca0
Calculator_example
language:
C++14 (gcc 8.3)
created:
5 hours ago
visibility:
public

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