---
title: "What is the difference between ArrayList and Vector?"  
description: "What is the difference between ArrayList and Vector?"  
author: "Anonymous User"  
published: 2015-05-11  
updated: 2020-09-21  
canonical: https://www.mindstick.com/interview/2504/what-is-the-difference-between-arraylist-and-vector  
category: "java"  
tags: ["java", "collection"]  
reading_time: 1 minute  

---

# What is the difference between ArrayList and Vector?

**ArrayList** 1)ArrayList is not synchronized. 2)ArrayList is not a legacy class. 3)ArrayList increases its size by 50% of the array size. **Vector**1)Vector is synchronized.2)Vector is a legacy class.3)Vector increases its size by doubling the array size.

## Answers

### Answer by Anonymous User

**ArrayList** 1)ArrayList is not synchronized. 2)ArrayList is not a legacy class. 3)ArrayList increases its size by 50% of the array size. **Vector**1)Vector is synchronized.2)Vector is a legacy class.3)Vector increases its size by doubling the array size.


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