Java Collections - How to Create Vector

Published April 04, 2022

To create a Java vector, you simply need to import the Java.util.Vector and then create a Vector using the syntax below:

Vector<Type> vector = new Vector<>()

 

where the Type of the Vectors can either be a string or an integer.

Vector Methods 

• add(element)- adds elements to a vector

• add(index, element)- adds elements  to a specific position 

• addAll(vector)- adds elements of the vector to another vector

• get(index)-returns elements that the index has specified

• iterator()- returns an iterator object to access vector elements sequentially.

• Remove(index)- removes  the specified element

• removesAll()- all elements are removed

• clear()- clears all elements

 

Create Simple Vector Example in Java

import java.util.Vector; public class VectorExample {     public static void main(String[] args) {         Vector<String> fish= new Vector<>();         // Using the add() method         fish.add("Shark");         fish.add("Dolphines");         // Using index number         fish.add(2, "mudgfish");         System.out.println("Vector: " + fish);         // Using addAll()         Vector<String> amphibians = new Vector<>();         amphibians.add("Lizards");         amphibians.addAll(amphibians);         System.out.println("New Vector: " + amphibians);     }   }

 

 

Output:

Vector: [Shark,Dolphines,mudgfish]

New Vector: [Lizards.Lizards]