Java Vector

Vector represents a collection of similar items. In Java, the Vector class is defined in java.util package that implements a growable array of objects. Like an array, its items can be accessed using an integer index. Once the Vector has been created, the size of a Vector can be grown or reduced as needed to adding and removing items to that vector.
  
Vectors are extremely easy to use, and implement the Enumeration interface which makes traversing the contents of a Vector extremely easy.
Creating a vector is easy. You just need to simply define a variable of type Vector, and call the vector constructor.