Collections and Generics - SCJP Sun Certified Programmer for Java Platform SE6 - page 479

8. list.add(“two”);
9. list.add(7);
10. for(String s : list) {
11. System.out.print(s);
12. }
A. onetwo
B. onetwo7
C. onetwo followed by an exception
D. Compiler error on line 9
E. Compiler error on line 10
5. What is the result of the following statements?
3. ArrayList<Integer> values = new ArrayList<Integer>();
4. values.add(4);
5. values.add(5);
6. values.set(1, 6);
7. values.remove(0);
8. for(Integer v : values) {
9. System.out.print(v);
10. }
A. 4
B. 5
C. 6
D. 46
E. 45
6. What is the result of the following statements?
10. Stack<String> greetings = new Stack<String>();
11. greetings.push(“hello”);
12. greetings.push(“hi”);
13. greetings.push(“ola”);
14. greetings.pop();
15. greetings.peek();
16. Iterator iter = greetings.iterator();
17. while(iter.hasNext()) {
18. System.out.print(iter.next());
19. }
A. hello
B. hellohi