In-Class Exercise

For each question, assume the following declarations:

int num1, num2, num3;
float real1, real2, real3;

For each question, tell what value, if any, will be assigned to each variable, or explain why an error occurs, when the statement is executed with the given input data:

1. cin >> num1 >> num2 >> num3;
                                         INPUT:  11 22
                                                 33 44

2. cin >> real1 >> real2 >> real3;
                                         INPUT:  1.1  2   3.3  4

3. cin >> num1 >> num2 >> num3;
                                         INPUT:  1.1  2   3.3  4

4. cin >> num1 >> real1 >> num2
       >> real2 >> num3 >> real3;
                                         INPUT:  1.1  2
                                                 3.3  4
                                                 5.5  6

ANSWERS:

1. num1 = 11, num2 = 22, num3 = 33
2. real1 = 1.1, real2 = 2.0, real3 = 3.3
3. num1 = 1, error reading period for num2, all other reads ignored
4. num1 = 1, real1 = 0.1, num2 = 2, real2 = 3.3, num3 = 4, real3 = 5.5