What are the exceptions to the JAVA operation array

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Arrays are data structures that programmers often use. There are three possible exceptions when performing array operations such as replication.

NullPointerException

This exception may occur because the source or destination array does not refer to an instance of the array, that is, when the value of the array reference is NULL.

ArrayIndexOutOfBoundsException

When the array index value is specified incorrectly or the starting position is wrong, it is also possible that the number of copied data is out of the size range of the array.

ArrayStroeException

The cause may be that the source or destination is not an array at all, or that the source or destination array is not an array of basic data types.

Another digression, for array operations, what's the difference between using a loop to do copy and using System.arraycopy to do copy? The biggest difference is that the System.arraycopy method uses JNI, so it is faster.

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