Java Interfaces and UML

Given the following UML diagram:

• Fill in the table below with one of three values.
  • ✓ An object of the indicated type could be stored in a variable of the indicated type.
  • X An object of the indicated type could not be stored in a variable of the indicated type.
  • — It is not possible to instantiate an object of the indicated type.

  		Variable Type
  		Tossable	Ball	Rock	Baseball	Football
  Object Type	Tossable
  	Ball
  	Rock
  	Baseball
  	Football

  
  
  
• Which of the following will compile (mark with a C)? Which of the following will execute successfully (mark with an E)?

  
  1.        Ball ball = new Football("spalding");
          
  2.        Ball ball = new Football("Spalding");
            Baseball baseball = (Baseball)ball;
          
  3.        Object obj = new Baseball("spalding");
          
  4.        Object obj = new Baseball("spalding");
            Tossable tossable = obj;
  
  5.        Tossable tossable = new Baseball("spalding");
            Object obj = tossable;
  
  6.        Tossable tossable = new Baseball("spalding");
            tossable.getBrandName();
  
  

• Provide a java implmentation corresponding to the UML above. You do not need to fill in the method bodies for the toss or bounce methods.