Top Most Java 5 New Feature deepEquals() and deepToString()

package com.myapp.test;

import java.util.Arrays;

public class ArrayListFeature {
    public static void main(String[] args) {
        int[] anArray = { 1, 3, 5, 7, 9, 11, 13, 15, 16, 20 };
        System.out.println(Arrays.toString(anArray));

        // deepToString for multi dim array
        double[][] apartment1 = { { 4.6, 8.5, 3.2, 5.1 },
                { 6.4, 11.1, 4.1, 6.2 } };
        double[][] apartment2 = { { 4.6, 8.5, 3.2, 5.1 },
                { 6.4, 11.1, 4.1, 6.2 } };
        System.out.println(Arrays.toString(apartment1));
        System.out.println(Arrays.deepToString(apartment1));
        // Arrays.deepEquals(array1,array1)
        System.out.println(Arrays.deepEquals(apartment1, apartment2));
        System.out.println(Arrays.equals(apartment1, apartment2));

        System.out.println(Arrays.hashCode(apartment1));
        System.out.println(Arrays.deepHashCode(apartment1));
    }
}