I have a question for copying the Java array.

While solving the problem yesterday, I wanted to copy array A to array B to system.arraycopy and change only the content value of B.

But changing the value of array B also changed the value of array A, which made it a little difficult. If you copy an array to System.arraycopy, it seems that array B refers to array A.

All I want to do is copy the values of the real array, not the references, so that they don't affect each other if the contents change inside. Is there a method in Java that influences each other and copies an array?

Or is it just a way to put the value one by one using a repeating sentence?

Finally, if there is a method, I want to know how much difference there is between the method and the repetition rate.

Please let me know if there is anything wrong with the above!