Question

Vector vector= new Vector();           vector.addElement(1);        vector.addElement(2);        vector.addElement(3);        System.out.println("Size of the Vector: " + vector.size());        System.out.println("First element: " + vector.firstElement()); What is output of vector in java?
a.Size of the Vector: 3     First element: 1
b.Size of the Vector: 2    First element: 1
c.Size of the Vector: 3      First element: 2
d.Size of the Vector: 3      First element: 0

Answer 1

a. Size of the Vector: 3 First element: 1