The following code segment will be used for the remaining questions.The code in the classes Bar and Foo is complete, and ExamI contains only a partially completed main method (in other words there are no additional methods in the class ExamI, but there could be more code in the main method) .NOTE:Pay attention to the "None of the above" selections for these questions - they may require you to write additional work beyond just circling the answer.Also some of these questions may have more than one correct answer listed - you should mark ALL that apply in these cases (YY points each):

public class Bar {

private int myInt;

public Bar() { myInt = 5; }

public void method1(int x) { myInt = x; }

public int method2(int x) { return 2*x; }

}

public class Foo extends Bar {

public Foo() { super(); }

public int method2(int x) { return 4; }

}

public class ExamI {

public static void main(String[] args) {

Bar aBar = new Bar();

Foo aFoo = new Foo();

... // The rest of the code follows from this point

}

}

7. Which of the following BEST describes the relationship between the classes Bar and Foo and Object (Mark ALL that apply):

a. Foo is a subclass of Bar.

b. Bar is a subclass of Foo.

c. Object is a subclass of Bar.

d. Foo is a subclass of Object.

8. Which of the following lines will print out 5? (Mark ALL that apply)

a. System.out.println(aBar.method2() + 1);

b. System.out.println(aFoo.method2() + 1);

c. System.out.println(aBar.method2() - 5);

d. System.out.println(aFoo.method2() - 5);

e. System.out.println(aBar.myInt);

f. System.out.println(aFoo.myInt);

9. Given the code above, suppose we have the following method header in the class ExamI:

public static int sampleMethod2(Foo f)

Which of the following are correct calls to the method sampleMethod2? (Mark ALL that apply)

a. int x = sampleMethod2(aBar);

b. int x = sampleMethod2(aFoo);

c. int x = sampleMethod2();

d. None of the above calls are correct - in the space below provide a correct way to call this method from the main method of ExamI:

10. In the code above, what would be a correct way to call the method method2 in the Bar class from the main method of the class ExamI? (Mark ALL that apply):

a. Bar.method2();

b. method2();

c. aBar.method2();

d. None of the above - in the space below indicate what the correct syntax for invoking method2 would be:

11. Given only the code you can see above, what would be a correct way for the class ExamI to set myInt to 10? (Mark ALL that apply):

a. aBar.method1(10);

b. aFoo.method1(10);

c. aBar.myInt = 10;

d. ExamI cannot set myInt to 10