Designing Classes - Java Concepts - page 519

΢΢ Exercise R8.7. On which classes does the class Integer in the standard
library depend?

΢΢ Exercise R8.8. On which classes does the class Rectangle in the
standard library depend?

΢ Exercise R8.9. Classify the methods of the class Scanner that are used in
this topic as accessors and mutators.

΢ Exercise R8.10. Classify the methods of the class Rectangle as
accessors and mutators.

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377

΢ Exercise R8.11. Which of the following classes are immutable?

a. Rectangle

b. String

c. Random

΢ Exercise R8.12. Which of the following classes are immutable?

a. PrintStream

b. Date

c. Integer

΢΢ Exercise R8.13. What side effect, if any, do the following three methods
have:

public class Coin
{
public void print()
{
System.out.println(name + " " + value);
}
public void print(PrintStream stream)
{
stream. println(name + " " + value);
}
public String toString()