Câu hỏi phỏng vấn Kotlin
Câu hỏi

May you use IntArray and an Array is in Kotlin interchangeably?

Câu trả lời

Can IntArray and Array be used interchangeably in Kotlin?

No, IntArray and Array<Int> are not interchangeable in Kotlin, although they are both used to store integers. Here are the key differences:

1. Type

  • IntArray is a primitive array type that stores integers directly in memory.
  • Array<Int> is an object array type that stores references to Int objects.

2. Memory usage

  • IntArray is more memory-efficient because it stores integers directly without the overhead of object references.
  • Array<Int> requires more memory because it stores references to Int objects.

3. Null values

  • IntArray cannot store null values because it is a primitive array.
  • Array<Int> can store null values because it is an obj...
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