Chapter 6, Problem 3SA

Consider the following class declaration:

public class Thing

{

  private int x;

  private int y;

  private static int z = 0;

  public Thing ()

  {

  x = z;

  y = z;

  }

  public static void putThing(int a)

  {

  z = a;

  }

}

Assume a program containing the class declaration defines three Thing objects with the following statements:

Thing one = new Thing ();

Thing two = new Thing ();

Thing three = new Thing ();

1. a. How many separate instances of the x member exist?
2. b. How many separate instances of the y member exist?
3. c. How many separate instances of the z member exist?
4. d. What value will be stored in the x and y members of each object?
5. e. Write a statement that will call the putThing method.