Câu hỏi phỏng vấn Kotlin
Câu hỏi

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

Câu trả lời

Can IntArray and Array<Int> 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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