I have this doubt in Java, thought I would check it out with you. Hope its allright. I have a class called schedule This is rough structure of my code.

Schedule S1 = new Schedule();
S1 = S1.getvalues(S1);
Schedule Solution = S1.clone();
S1=S1.changevalues(S1); // I have changed the values here
S1.display();
solutoin.display();

Now I assumed that since Solution was a clone of S1 its values wont change since it creates a copy with a separate memory location but if I print the values from Solution and S1 they are both the same What am I doing wrong?

To go into a little more detail about the Class Schedule
It contains a String S ; Vector V and a Vector A which contains a set Objects Unit from Class Unit Unit contains an attribute Vector Z;

Now in this example String s does not change there is no problem.
However Vector V for solution and s1 have the same value even after i change the values for it
I found a way out by entering
Solution.V = (Vector)S1.V.clone(); after Schedule Solution = S1.clone();
However I have not been able to get this done with Vector A even if do a loop and clone each of the Vector Zs.
Hari