Below are some of the differences between Arrays and Collection:
|Arrays are fixed in size that is once we create an array we can not increased or decreased based on our requirement.||Collection are growable in nature that is based on our requirement. We can increase or decrease of size.|
|With respect to memory Arrays are not recommended to use.||With respect to memory collection are recommended to use.|
|With respect to performance Arrays are recommended to use.||With respect to performance collection are not recommended to use.|
|Arrays can hold only homogeneous data types elements.||Collection can hold both homogeneous and and heterogeneous elements.|
|There is no underlying data structure for arrays and hence redimat method support is not available.||Every collection class is implemented based on some std data structure and hence for every requirement redimat method support is available being a performance. we can use these method directly and We are not responsible to implement these methods.|
|Arrays can hold both object and primitive.||Collection can hold only object types but primitive.|
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