asking about util plz help me out!!!!!!!

[kumar abhay]

hi there,
hope u r doin' fine.here r list of questions given below:
Question 1:
Vector is the class of collection n data structure being used by vector is "array".
my question is that if it's array then how it's extensible(bec usually array does not exceed its size n in vector its extensible).
Question 2:
can we use data structure in a interface if yes then how it can be.n if we use data structure in
a interface,wont it be constant.this is making confusions so plz help me out.
thanks in advance
with regards
kumar abhay

[Ilja Preuss]

1) Take a look at source of Vector to see how it is done. The sources of the java classes are typically coming with each JDK in a src.jar or src.zip file.
2) It is not possible to declare a non-public, non-static, non-final field in an interface.

[Roberto Ingunza]

Use an Abstract class either. It suits your interests better.

[Pradeep bhatt]

Whenever the capacity of the array gets filled a new array is created (double the size or increment value specified) and contents of the old array are copied to the newly created array.