Answers to Review: Variables (b)

General Questions

1. %f

2. %.2f

3. #define

4. a variable that remains the same at all times

Floating Point Variables

1. two errors:

• in line 4, the variable should be float, not int
• line 4 should end with a semicolon ;

2. one error:

• the format specifier in line 5 should be %f, not %d

Working with Money

1. two errors:

• line 5 should end with a semicolon ;
• line 9 should use %.2f to limit the answer to 2 decimal places

2. five errors:

• after the first line, add void main( )
• the last printf statement has four errors; it should be:
  printf("\nHardback: $%.2f. With tax: $%.2f.", price, total);

Constants

1. four errors:

• line 2 has two errors; it should be: #define HURLEY 1919 (no = sign)
• line 9 should have the constant in capital letters: HURLEY
• line 10 should use the %d format specifier, not %f