Vector

The Vector class implements a growable array of objects. Like an array, it contains components that can be accessed using an integer index. However, the size of a Vector can grow or shrink as needed to accommodate adding and removing items after the Vector has been created.


Each vector tries to optimize storage management by maintaining a capacity and a capacityIncrement.

The capacity is always at least as large as the vector size; it is usually larger because as components are added to the vector, the vector's storage increases in chunks the size of capacityIncrement.

An application can increase the capacity of a vector before inserting a large number of components;

this reduces the amount of incremental reallocation. Unlike the new collection implementations, Vector is synchronized.



package collection.demos;



import java.util.Vector;



public class VectorDemo {

    public static void main(String[] args) {

        Vector<String> names=new Vector<String>();

        names.add("name1");

        names.add("name2");

        names.add("name3");

        names.add("name4");

        System.out.println("Elements : "+names);



    }

}