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The moose likes Beginning Java and the fly likes asking about util plz help me out!!!!!!! Big Moose Saloon
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asking about util plz help me out!!!!!!!

kumar abhay
Ranch Hand

Joined: Oct 02, 2001
Posts: 53
hi there,
hope u r doin' 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

Joined: Jul 11, 2001
Posts: 14112
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 file.
2) It is not possible to declare a non-public, non-static, non-final field in an interface.

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Roberto Ingunza

Joined: Mar 12, 2002
Posts: 4
Use an Abstract class either. It suits your interests better.
Pradeep bhatt
Ranch Hand

Joined: Feb 27, 2002
Posts: 8927

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.

I agree. Here's the link:
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