ShellSort Class extends Sortable
the important thinking about shell sort is that divide the array and use insert sort again and again
You can run main method to test.
/**
* The entry point of application.
*
* @param args the input arguments
*/
public static void main(String[] args) {
ShellSort shellSort = new ShellSort();
Integer[] integers = new Integer[] {1, 2, 1, 45, 32, 52, 12, 11, 22, 322, 4, 5, 1, 3, 3, 3, 2, 2};
shellSort.show(integers);//1 2 1 45 32 52 12 11 22 322 4 5 1 3 3 3 2 2
shellSort.sort(integers);
shellSort.show(integers);//1 1 1 2 2 2 3 3 3 4 5 11 12 22 32 45 52 322
}More details:ShellSort.java