Given:
1 . String foo = "blue";
2 . Boolean[]bar = new Boolean [1];
3 . if (bar[0]){
4 .foo = "green";
5 .}
What is the result?

• A. An exception is thrown.
• B. Foo has the value of ""
• C. The code will not compile.
• D. Foo has the value of "blue"
• E. Foo has the value of "green"
• F. Foo has the value of null.

Exhibit
1 . public class SyncTest{
2 . public static void main(String[] args){
3 . final StringBuffer s1= new StringBuffer();
4 . final StringBuffer s2= new StringBuffer();
5 . new Thread (){
6 .public void run() {
7 .synchronized(s1) {
8 .s2.append("A");
9 .synchronized(s2) {
1 0. s2.append("B");
1 1.System.out.print(s1);
1 2.System.out.print(s2);
1 3. }
1 4.}
1 5.}
1 6. }.start();
1 7. new Thread() {
1 8. public void run() {
1 9.synchronized(s2) {
2 0.s2.append("C");
2 1.synchronized(s1) {
2 2.s1.append("D");
2 3.System.out.print(s2);
2 4.System.out.print(s1);
2 5.}
2 6.}
2 7.}
2 8.}.start();
2 9.}
3 0. }
Which two statements are true? (Choose Two)

• A. The output is a non-deterministic point because of a possible deadlock condition.
• B. The output is dependent on the threading model of the system the program is running on.
• C. The program prints "CDDACB"
• D. The program prints "ABBCAD"
• E. The program prints "ADCBADBC"

Which two interfaces provide the capability to store objects using a key-value pair?
(Choose Two)

• A. Java.util.Set.
• B. Java.util.StoredMap.
• C. Java.util.Map.
• D. Java.util.StoredSet.
• E. Java.util.List.
• F. Java.util.Collection.

Exhibit:
1 . import java.awt.*;
2 .
3 . public class X extends Frame {
4 . public static void main (String [] args) {
5 . X x = new X();
6 . x.pack();
7 . x.setVisible(true);
8 .}
9 .
1 0. public X(){
1 1. setLayout (new BordrLayout());
1 2. Panel p = new Panel ();
1 3. add(p, BorderLayout.NORTH);
1 4. Button b = new Button ("North");
1 5. p.add(b):
1 6. Button b = new Button ("South");
1 7. add(b1, BorderLayout.SOUTH):
1 8.}
1 9.}
Which two statements are true? (Choose Two)

• A. The height of the button labeled "South" can very if the Frame is resized.
• B. The height of the button labeled "North" can very if the Frame is resized.
• C. The width of the button labeled "South" is constant even if the Frame is resized.
• D. The buttons labeled "North" and "South" will have the same width.
• E. The buttons labeled "North" and "South" will have the same height.
• F. The width of the button labeled "North" is constant even if the Frame is resized.