java vector to arraylist
Is there any way to copy or convert a vector to arraylis开发者_StackOverflow社区t in Java?
Yup - just use the constructor which takes a collection as its parameter:
Vector<String> vector = new Vector<String>();
// (... Populate vector here...)
ArrayList<String> list = new ArrayList<String>(vector);
Note that it only does a shallow copy.
I just wrote a class to do the same thing, but is more flexible as it will accept Objects accordingly.
public class ExteriorCastor {
public static ArrayList vectorToArrayList(Vector vector){
if (vector == null){return null;}
return new ArrayList<Object>(vector);
}
}
i´m not sure if it is length()
or size()
.... but the idea is the next:
ArrayList<Object> a;
for(int i = 0;i < Vector.length() ; i++)
a.add(Vector.elementAt(i); // Again... i´m not sure if this is elementAt() or get()
Vector.finalize();
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