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public class MainClass {
public static void main(String[] args) {
int[] intArray = { 1, 9, 2, 8, 3, 7, 4, 6, 5 };
for (int i : intArray) {
System.out.println(i);
}
shellSort(intArray);
System.out.println("after: ");
for (int i : intArray) {
System.out.println(i);
}
}
public static void shellSort(int[] intArray) {
int inner, outer;
int temp;
int h = 1;
while (h <= intArray.length / 3){
h = h * 3 + 1;
}
while (h > 0) {
for (outer = h; outer < intArray.length; outer++) {
temp = intArray[outer];
inner = outer;
while (inner > h - 1 && intArray[inner - h] >= temp) {
intArray[inner] = intArray[inner - h];
inner -= h;
}
intArray[inner] = temp;
}
h = (h - 1) / 3;
}
}
}
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