Difference between array and arraylist.
Answer Posted / prem
Array:
It is mainly used to store and retrive similar datatype
elements.
It is a limited storage.
So it's size not growable and shrinkable.
It will create array out of bound exception while we adding
more elements in an array after exceeding array size..
While we remove elements from array,the array size will be
same.size will not get reduce.
ArrayList:
It is a class.
It is a collection.
It is used to store different datatype objects.
It is growable and shirnkable.
So whenever we add elements in an ArrayList the size of
ArrayList will grow..While we remove element from an
ArrayList the size of ArrayList will get reduce..
So memory will get save..
Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
What is the difference between yielding and sleeping in java programming?
What is the meaning of 3 dots in java?
What is public/private protected in java?
How does predicate work in java?
When do we use hashset over treeset?
What do you know about java?
What is substring 1 in java?
Explain garbage collection in java?
Why declare Main() method as a static in java ?
What is tochararray in java?
What is the do while loop syntax?
How concurrent hashmap works?
What is skeleton and stub?
What is the output of the below java program?
What are design patterns and please explain?