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Total No Of Questions: 100.
1) Given:
1. class Ring {
2. final static int x2 = 7;
3. final static Integer x4 = 8;
4. public static void main(String[] args) {
5. Integer x1 = 5;
6. String s = "a";
7. if(x1 < 9) s += "b";
8. switch(x1) {
9. case 5: s += "c";
10. case x2: s += "d";
11. case x4: s += "e";
12. }
13. System.out.println(s);
14. }
15. }
What is the result?


2) When comparing java.io.BufferedWriter to java.io.FileWriter, which
capability exists as a method in only one of the two?



3) Q: 01 Given:
8. public class test {
9. public static void main(String [] a) {
10. assert a.length == 1;
11. }
12. }
Which two will produce an Assertion Error? (Choose two.)


4) Which are true? (Choose all that apply.)


5) Given:
1. public class Drink implements Comparable {
2. public String name;
3. public int compareTo(Object o) {
4. return 0;
5. }
6. }
and:
20. Drink one = new Drink();
21. Drink two = new Drink();
22. one.name= "Coffee";
23. two.name= "Tea";
23. TreeSet set = new TreeSet();
24. set.add(one);
25. set.add(two);
A programmer iterates over the TreeSet and prints the name of each Drink object.
What is the result?



6)

Given:

11. String[] elements = { "for", "tea", "too" };
12. String first = (elements.length > 0) ? elements[0] : null;
What is the result?



7) Given:
7. void waitForSignal() {
8. Object obj = new Object();
9. synchronized (Thread.currentThread()) {
10. obj.wait();
11. obj.notify();
12. }
13. }
Which statement is true?


8) Given:
12. public class AccountManager {
13. private Map accountTotals = new HashMap();
14. private int retirementFund;
15.
16. public int getBalance(String accountName) {
17. Integer total = (Integer) accountTotals.get(accountName);
18. if (total == null)
19. total = Integer.valueOf(0);
20. return total.intValue();
21. }
23. public void setBalance(String accountName, int amount) {
24. accountTotals.put(accountName, Integer.valueOf(amount));
25. } }
This class is to be updated to make use of appropriate generic types, with no changes in
behavior (for better or worse). Which of these steps could be performed? (Choose three.)



9) Which three statements concerning the use of the java.io.Serializable
interface are true? (Choose three.)



10) Select the two statements that best indicate a situation with low coupling. (Choose two.)
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