Compare the performance of the following code snippets that copy elements from an Integer array to an int array and vice versa, including the case where new Integer objects are created from int values: ```java int SIZE = 1000000; int[] x = new int[SIZE]; Integer[] y = new Integer[SIZE]; for (;;) { for (int i = 0; i < SIZE; ++i) { x[i] = y[i]; } } ``` ```java int SIZE = 1000000; int[] x = new int[SIZE]; Integer[] y = new Integer[SIZE]; for (;;) { for (int i = 0; i < SIZE; ++i) { y[i] = x[i]; } } ``` ```java int SIZE = 1000000; int[] x = new int[SIZE]; Integer[] y = new Integer[SIZE]; for (;;) { for (int i = 0; i < SIZE; ++i) { y[i] = new Integer(x[i]); } } ``` Analyze and explain the differences in performance and behavior among these approaches.