Exercises and Projects 201 8. What is the difference between the types of parameters (explained in Chapter 4) used in methods and the types of values that can be returned from a function? 9. In Alice's drag-and-drop interface, nested tiles and parentheses are automatically inserted in the expression. What is the purpose of nested tiles and parentheses in an xpression containing multiple conditions, what operators may be used to 11. A Boolean expression containing multiple conditions is often difficult to understand. expression? connect the conditions? What alternative structure can be used to achieve the same results? 10. In a Boolean e Exercises and Projects 6-1 Exercises