/**
 * Reverses an input array to produce a new output array.
 */
public class Reverse 
{

	public static void main(String[] args) 
	{
		// Create a sample array (even length)
		int[] num = new int[]{1,3,5,7,9,11};
		printArray(num);
		printArray(reverseArray(num));
		
		// Create a sample array (odd length)
		int[] num2 = new int[]{1,3,5,7,9};
		printArray(num2);
		printArray(reverseArray(num2));
	}

	/**
	 * Prints the contents of an array of integers.
	 * @param a
	 */
	public static void printArray(int[] a)
	{	
		if (a != null && a.length > 0)
			System.out.print(a[0]);
		
		for (int i=1; i < a.length; i++)
			System.out.print(", "+a[i]);
		System.out.println();
	}
	
	/**
	 * Reverses an input array to produce an output array.
	 * 
	 * @param a
	 * @return
	 */
	public static int[] reverseArray(int[] a)
	{
		int[] newArray = new int[a.length];
		
		for (int i=0; i < a.length; i++)
			newArray[a.length-i-1] = a[i];
		return newArray;
	}
}