CertGear question doubt

[Jas Oberai]

Hi Friends,
I've this doubt,can someone tell me how many objects are created by this code??According to me:
9 Obejects-->"Hello","World","Hi World","Do Test","a","b","c",Vector v","x"

1:import java.util.*;
2 :-P	 ublic class test
3:{
4:      public static void main (String args[])
5:      {
6:      StringBuffer a = new StringBuffer ("Hello");
7:      StringBuffer b = new StringBuffer ("World");
8:      StringBuffer c = new StringBuffer ("Hi World");
9:      a = b;
10:     c = doTest ();
11:
12:     }
13:
14:     private static StringBuffer doTest () {
15:     Vector v = new Vector ();
16:     StringBuffer x = new StringBuffer ("Do Test");
17:     return x;
18:     }
19:}

If I am correct,can someone tell me why "StringBuffer Object x" is not available for garbage collection ar #11??
Thanks in advance.

[James Carman]

Because it is being referred to by the variable c.

[soumya ravindranath]

Originally posted by jas oberai:
Hi Friends,
I've this doubt,can someone tell me how many objects are created by this code??According to me:
9 Obejects-->"Hello","World","Hi World","Do Test","a","b","c",Vector v","x"

1:import java.util.*;
2  :-P	  ublic class test
3:{
4:      public static void main (String args[])
5:      {
6:      StringBuffer a = new StringBuffer ("Hello");
7:      StringBuffer b = new StringBuffer ("World");
8:      StringBuffer c = new StringBuffer ("Hi World");
9:      a = b;
10:     c = doTest ();
11:
12:     }
13:
14:     private static StringBuffer doTest () {
15:     Vector v = new Vector ();
16:     StringBuffer x = new StringBuffer ("Do Test");
17:     return x;
18:     }
19:}

If I am correct,can someone tell me why "StringBuffer Object x" is not available for garbage collection ar #11??
Thanks in advance.

Jas,
aren't a,b,c and x variables ? You cannot count them among objects created.

[Jas Oberai]

I guess "c is not referring x",c is referring to "Do Test".Please correct me if i am wrong and tell me James how many objects are created??

[James Carman]

c is referring to a StringBuffer containing "Do Test". And, I believe you're right. It looks like 9 objects are created. Unless, of course, you count the Class objects that must be created by the classloader in order for you to instantiate the objects.