could you run the java program without main method?

Accenture NJ mostly ask question on Collection like
1)How to sort Objcts and how treeset sort them
2)Explain mechanism of Hashcode finding in Java
3)Name some of the Sorted collection.

Given:
11. public static void main(String[] args) {
12. Integer i = uew Integer(1) + new Integer(2);
13. switch(i) {
14. case 3: System.out.println(”three”); break;
15. default: System.out.println(”other”); break;
16. }
17. }
‘What is the result?
1		three
2		other
3		An exception is thrown at runtime.
4		Compilation fails because of an error on 
line 12.

Given:
1. package test;
2.
3. class Target {
4. public String name = “hello”;
5. }
What can directly access and change the value of the 
variable name?
1		any class
2		only the Target class
3		any class in the test package
4		any class that extends Target

84. try {
85. ResourceConnection con = 
resourceFactory.getConnection();
86. Results r = con.query(”GET INFO FROM CUSTOMER”);
87. info = r.getData();
88. con.close();
89. } catch (ResourceException re) {
90. errorLog.write(re.getMessage());
91. }
92. return info;
Which is true if a ResourceException is thrown on line 86?
1		Line 92 will not execute.
2		The connection will not be retrieved in line 
85.
3		The resource connection will not be closed 
on line 88.
4		The enclosing method will throw an exception 
to its caller.

11. static class A {
12. void process() throws Exception { throw new Exception(); 
}
13. }
14. static class B extends A {
15. void process() { System.out.println(”B”); }
16. }
17. public static void main(String[] args) {
18. new B().process();
19. }
What is the result?
1		B
2		The code runs with no output.
3		Compilation fails because of an error in 
line 12.
4		Compilation fails because of an error in 
line 15.

Given:
10. interface A { void x(); }
11. class B implements A { public void x() { } public 
voidy() { } }
12. class C extends B { public void x() {} }
And:
20. java.util.List list = new java.util.ArrayList();
21. list.add(new B());
22. list.add(new C());
23. for (A a:list) {
24. a.x();
25. a.y();;
26. }
What is the result?
1		Compilation fails because of an error in 
line 25.
2		The code runs with no output.
3		An exception is thrown at runtime.
4		Compilation fails because of an error in 
line 20.

	
33. try {
34. // some code here
35. } catch (NullPointerException e1) {
36. System.out.print(”a”);
37. } catch (RuntimeException e2) {
38. System.out.print(”b”);
39. } finally {
40. System.out.print(”c”);
41. }
What is the result if a NullPointerException occurs on line 
34?
1		c
2		a
3		ab
4		ac

10. class Nav{
11. public enum Direction { NORTH, SOUTH, EAST, WEST }
12. }
13. public class Sprite{
14. // insert code here
15. }
Which code, inserted at line 14, allows the Sprite class to 
compile?
a)Direction d = NORTH;
b)Nav.Direction d = NORTH;
c)Direction d = Direction.NORTH;
d)Nav.Direction d = Nav.Direction.NORTH;