/******************************************************************************
* Sort an array in descending order
*******************************************************************************/
import java.util.Arrays;

public class reverse
{
    public static void main(String args[ ])
    {
        int[] arr = {5,7,2,9,0,100,-50};
        Arrays.sort(arr);
        reverse(arr);
        System.out.println(Arrays.toString(arr));
    }
    public static void reverse(int[] arr)
    {
        for (int i=0; i<arr.length/2; i++)
        {
            int last  = arr.length-i-1;
            int temp  = arr[i];
            arr[i]    = arr[last];
            arr[last] = temp;
        }
    }
}