Java : Shell Sort

package shellsort;
public class ShellSort {

   public static void main(String args[]) {
        int[] array = new int[] { 7,2,9,1,4 };
 
        int x, i, j, space, temp;
         /* Shell Sort Program */
         for (space = array.length / 2; space > 0; space /= 2)
         {
                for (i = space; i < array.length; i++)
             {
                    temp = array[i];
                        for (j = i; j >= space; j -= space) 
                    {
                            if (temp < array[j - space]) {
                                array[j] = array[j - space];
                            } else {
                                break;
                            }
                        }
                       array[j] = temp;
            }
        }
        System.out.println("After Sorting:");
        for (x = 0; x <5; x++) {
            System.out.println(array[x]);
        }
    }
}