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.

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]

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