Java Array vs 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	—

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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