Communities for your favorite technologies. Explore all Collectives
Stack Overflow for Teams is now called Stack Internal. Bring the best of human thought and AI automation together at your work.
Bring the best of human thought and AI automation together at your work. Learn more
Find centralized, trusted content and collaborate around the technologies you use most.
Stack Internal
Knowledge at work
Bring the best of human thought and AI automation together at your work.
How come
int[] arr = new int[5]; Object[] obj = arr;
produces a compilation error while
int[][] arr = new int[5][5]; Object[] obj = arr;
doesn't?
int[]
Object
Object[]
int[][]
Object[] obj = arr
Object obj = arr
int[] is an Object, so array of int[] is an array of Object.
Add a comment
Required, but never shown
By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.
Start asking to get answers
Find the answer to your question by asking.
Explore related questions
See similar questions with these tags.
int[]is anObject, notObject[], whereas anint[][]is anObject[]. Remember, multidimensional arrays in Java are just arrays of arrays; an array is anObject.Object[] obj = arrwithObject obj = arr.