The break-Statement

1. The break-statement can be used within a loop to exit it prematurely.
   
   
2. When the break-statement is executed within a loop, the loop ends immediately and execution continues with the statement following the loop statement.
   
   
3. In a nested loop, the break statement interrupts only the loop it is placed in.
   
   
4. The following example from the textbook illustrates how the break-statement is used:
   
   // Sums up to 10 negative numbers entered from the keyboard,
   // or until a positive number is entered.
   // Make sure that the positive number is not included in computing the sum
   
   #include <iostream>
   using namespace std;
   
   int main( )
   {
      int number, sum = 0, count = 0;
      cout << "Enter 10 negative numbers:\n";
   
      while (++count <= 10)
      {
         cin >> number;
   
         if (number >= 0)
         {
            cout << "ERROR: positive number"
               << " or zero was entered as the\n"
               << count << "the number! Input ends "
               << "with the " << count << "th number.\n"
               << count << "the number was not added in.\n";
            break;
         }
   
         sum = sum + number;
      }
   
      cout << sum << " is the sum of the first "
               << (count - 1) << " numbers.\n";
   
      return 0;
   }