What is the difference between Array, ArrayList and List?

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Anonymous User · Answer

First of all, all of them are used when we want to store more than one values but want to create one variable.
Arrays
Disadvantages
and  Array is a fixed sized data structure. We cannot change the length of an array once it is created.
and and Array requires continuous memory blocks.
Advantages
and Array is type safe (strongly type).and Array List
Disadvantages
and  It’s not type safe.and and Performance wise not good because every time we add some value inside it, automatic boxing willand and performed (value will converted to object) and every time we want to retrieve something from it weand have to explicitly perform unboxing(convert object back to value).and Advantages
and Dynamic size – With every new addition and removal of item, size of a data structure changes.and and Won’t require continuous memory allocation.and List
Advantages
and Strongly typedand and Dynamic sizeand and  Won’t require continuous memory allocation.

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What is the difference between Array, ArrayList and List?

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