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package sort; //================================================= // File Name : ShellSort //------------------------------------------------------------------------------ // Author : Common import java.util.Arrays; //类名:Arrays_Shell //属性: //方法: class Arrays_Shell{ private int[] arrays; private int curNum; public Arrays_Shell(int max) { //建立一个max长度的空数组 super(); arrays = new int[max]; curNum = 0; } public void insert(int value){ //往空的数组里面增加元素 arrays[curNum] = value; curNum++; } public void display(){ //显示数组 System.out.println(Arrays.toString(arrays)); } public void ShellSort(){ int out,in; int temp; int h = 1; while(h <= curNum/3) //求出最大的增量,5刚开始的增量为4 h = h*3+1; //1,4,13,40,121,.... while(h>0){ for(out=h;out<curNum;out++){//out从1开始递增,把out前的数两两排序 temp = arrays[out]; in = out; while(in>h-1 && arrays[in-h] >= temp){//刚开始in是比较0和h的大小 arrays[in] = arrays[in-h]; in -= h; } arrays[in] = temp; //display(); } h = (h-1)/3; } } } //主类 //Function : ShellSort public class ShellSort { public static void main(String[] args) { // TODO 自动生成的方法存根 int maxSize = 100; Arrays_Shell arrays_demo = new Arrays_Shell(maxSize); arrays_demo.insert(58); arrays_demo.insert(57); arrays_demo.insert(56); arrays_demo.insert(60); arrays_demo.insert(59); arrays_demo.display(); arrays_demo.ShellSort(); arrays_demo.display(); } }
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原文地址:http://www.cnblogs.com/tonglin0325/p/5836448.html