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Total No Of Questions: 100.
1) Given:
1. import java.text.*;
2. class DateOne {
3. public static void main(String[] args) {
4. Date d = new Date(1123631685981L);
5. DateFormat df = new DateFormat();
6. System.out.println(df.format(d));
7. }
8. }
And given that 1123631685981L is the number of milliseconds between Jan. 1, 1970, and
sometime on Aug. 9, 2005, what is the result? (Note: the time of day in option A may vary.)



2) Given:
1. class Voop {
2. public static void main(String[] args) {
3. doStuff(1);
4. doStuff(1,2);
5. }
6. // insert code here
7. }
Which, inserted independently at line 6, will compile? (Choose all that apply.)



3) Given:
10. interface A { public int getValue(); }
11. class B implements A {
12. public int getValue() { return 1; }
13. }
14. class C extends B {
15. // insert code here
16. }
Which three code fragments, inserted individually at line 15, make use of polymorphism? (Choose three.)



4) Given:
1. class TestA {
2. public void start() { System.out.println("TestA"); }
3. }
4. public class TestB extends TestA {
5. public void start() { System.out.println("TestB"); }
6. public static void main(String[] args) {
7. ((TestA)new TestB()).start();
8. }
9. }
What is the result?



5) Given:
11. public static void main(String[] args) {
12. for (int i = 0; i <= 10; i++) {
13. if (i > 6) break;
14. }
15. System.out.println(i);
16. }
What is the result?



6)

Given the following directory structure:

org
| -- Robot.class
|
| -- ex
     |-- Pet.class
     |
     |-- why
         |-- Dog.class

And the following source file:
class MyClass {
Robot r;
Pet p;
Dog d;
}
Which statement(s) must be added for the source file to compile? (Choose all that apply.)



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


8)

Given:
10. class Line {
11. public class Point { public int x,y;}
12. public Point getPoint() { return new Point(); }
13. }
14. class Triangle {
15. public Triangle() {
16. // insert code here
17. }
18. }

Which code, inserted at line 16, correctly retrieves a local instance of a Point object?



9) Which about the three java.lang classes String, StringBuilder, and StringBuffer are true? (Choose all that apply.)


10) Given:
1. class Super {
2. private int a;
3. protected Super(int a) { this.a = a; }
4. }
...
11. class Sub extends Super {
12. public Sub(int a) { super(a); }
13. public Sub() { this.a = 5; }
14. }
Which two, independently, will allow Sub to compile? (Choose two.)

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