import java.util.Vector; public class UnparameterizedVector { // This is an example to demonstrate the working of the un-parameterized vector // This takes object as input and as object is super most class in java this will accept all type of inputs // but while retrieving it will return objects only public static void main(String[] args) { Vector vtr = new Vector(5); // created an un-parameterized vector vtr.add(10.0); // Although 10 is an integer but it will go in vector as object vtr.add(20.0); vtr.add(30.0); // if we add integers here to vectors then later on we will hav to caste it to Integer only // Casting it to double gives exception double sum = 0; // We are trying to add all the elements that are there in vector for(int i = 0; i