C++ How to Program, 10/e

Answers to Self-Review Exercises

1. 7.1

   1. arrays, vectors.

   2. array name, type.

   3. subscript or index.

   4. constant variable.

   5. sorting.

   6. searching.

   7. two-dimensional.

2. 7.2

   1. False. An array can store only values of the same type.

   2. False. An array subscript should be an integer or an integer expression.

   3. False. The remaining elements are initialized to zero.

   4. True.

3. 7.3

   1. const size_t arraySize{10};

   2. array<double, arraySize> fractions{0.0};

   3. fractions[3]

   4. fractions[4]

   5. fractions[9] = 1.667;

   6. fractions[6] = 3.333;

   7.  

      
      cout << fixed << setprecision(2);
      cout << fractions[6] << ' ' << fractions[9] << endl;
      Output: 3.33 1.67
      

   8.  

      
      for (size_t i{0}; i < fractions.size(); ++i) {
         cout << "fractions[" << i << "] = " << fractions[i] << endl;
      }
      Output: fractions[0] = 0.0 fractions[1] ...