Java How to Program, Early Objects, 11th Edition

Answers to Self-Review Exercises

1. 7.1

   1. arrays, collections.

   2. variables, type.

   3. enhanced for statement.

   4. index (or subscript or position number).

   5. two-dimensional.

   6. for (double d : numbers).

   7. an array of Strings, called args by convention.

   8. args.length.

   9. test.

   10. ellipsis (…).

2. 7.2 Answers:

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

   2. False. An array index must be an integer or an integer expression.

   3. For individual primitive-type elements of an array: False. A called method receives and manipulates a copy of the value of such an element, so modifications do not affect the original value. If the reference of an array is passed to a method, however, modifications to the array elements made in the called method are indeed reflected ...