Java Array vs ArrayList

September 20, 2011 | ArrayList

Java Array vs ArrayList

Summary: This tutorial "Java Array vs ArrayList", tables you the differences between array and arraylist at a glance to remember easily.

Both array and ArrayList are well familiar and used by the programmer very often. Both are interoperable – array to arraylist and arraylist to array.

Following table gives the differences of Java Array vs ArrayList

Array

ArrayList

Stores primitive data types and also objects

Stores only objects

Defined in Java language itself as a fundamental data structure

Belongs to collections framework

Fixed size

Growable and resizable. Elements can be added or removed

Stores similar data of one type

Can store heterogeneous data types

It is not a class

It is a class with many methods

Cannot be synchronized

Can be obtained a synchronized version

Elements retrieved with for loop

Can be retrieved with for loop and iterators

Elements accessible with index number

Accessing methods like get() etc. are available

Can be multidimensional

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Array related topics that increase array manipulation techniques

For extra reading of differences between various Java entities:

Java Comparisons (vs)

2. int to Binary, Octal, Hexa 3. Converting Numbers to Words

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