QUESTION 5

Consider the following code snippet:

public class Box 

{ 

 private E data; 

 public Box() { . . . } 

 public void insert(E value) { . . . } 

} 

What will result from executing the following code?

Box box = new Box(); 

box.insert("blue Box"); 

	A.	compile-time error
	B.	run-time error
	C.	correct generic assignment
		D. compile-time warning

QUESTION 6

Consider the following code snippet:

public class Box 

{ 

 private E data; 

 public Box() { . . . } 

 public void insert(E value) { . . . } 

 public E getData() { . . . } 

} 

What will result from executing the following code?

Box box = new Box(); 

Box b = (Box) box.getData(); 

	A.	compile-time error
	B.	run-time error
	C.	correct generic assignment
	D.	compile-time warning

QUESTION 7

Consider the following code snippet:

public class Box 

{ 

 private E data; 

 public Box(){ . . . } 

 public void insert(E value) { . . . } 

 public E getData() { . . . } 

} 

What will result from executing the following code?

Box box = new Box(); 

. . . 

box.insert("blue Box"); 

String b = (String) box.getData(); 

A.		compiler error
	B.	run-time error
	C.	correct, but unnecessary cast
	D.	correct, with necessary cast

QUESTION 12

Consider the following code snippet:

ArrayList coins1 = new ArrayList(); //Line 1 

LinkedList coins2 = new LinkedList(); //Line 2 

coins1.add("my penny"); //Line 3 

coins2.addFirst("my penny"); //Line 4 

Which of the above lines will cause a run-time error when the object is retrieved elsewhere in the program?

	A.	Line 1
	B.	Line 2
	C.	Line 3
	D.	Line 4

QUESTION 13

Consider the following code snippet:

ArrayList accounts1 = new ArrayList(); //Line 1 

LinkedList accounts2 = new LinkedList(); //Line 2 

accounts1.add("my Salary"); //Line 3 

accounts2.addFirst("my Salary"); //Line 4 

Which of the above lines will cause a compile-time error?

		A. Line 1
	B.	Line 2
	C.	Line 3
	D.	Line 4

QUESTION 14

Consider the following code snippet:

ArrayList accounts1 = new ArrayList(); //Line 1 

LinkedList accounts2 = new LinkedList(); //Line 2 

accounts1.add("my Salary"); //Line 3 

accounts2.addFirst("my Salary"); //Line 4 

Which of the above lines will cause a run-time error when the object is retrieved elsewhere in the program?

		A.Line 1
	B.	Line 2
	C.	Line 3
	D.	Line 4