Which is faster amongst an Array and an ArrayList?

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Array or List in Java. Which is faster?

Jul 20, 2018 in Java by Akrati
• 960 points
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1 answer to this question.

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Array Over List:

The capacity of an Array is fixed. 
Whereas ArrayList can increase and decrease size dynamically.

An Array is a collection of similar items. 
Whereas ArrayList can hold item of different types.

An array is faster and that is because ArrayList uses a fixed amount of array. 
However when you add an element to the ArrayList and it overflows. It creates a new Array and copies every element from the old one to the new one. 

List over arrays
If you do not exceed the capacity it is going to be as fast as an array. 
Better handling and much easier way of doing things. 
 

answered Jul 20, 2018 by sophia
• 1,400 points

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