Which method can be used to copy an array in Java?

The method used to copy an array in Java is the clone() method. When you invoke the clone() method on an array, it creates a new array that is a copy of the original array. This new array will contain the same elements as the original array, but it will be a separate instance in memory. This means that changes made to the copied array will not affect the original array.

In Java, arrays are objects, and the clone() method is inherited from the Object class. It can be particularly useful for duplicating arrays without manually looping through the elements to copy them one by one. By using the clone() method, you can achieve a more concise and efficient copying process.

The other choices listed do not represent valid methods for array copying in Java, which further highlights the correctness of the clone() method for this specific purpose.