package collection;

import java.util.Arrays;
import java.util.TreeSet;

public class Demo6 {

/**
* @ip地址排序
*/
public static void main(String[] args) {
String str = "192.68.1.254 102.49.23.013 10.10.10.10 2.2.2.2 8.109.90.30";
str = str.replaceAll("(\\d+)","00$1");
//sop(str);
str = str.replaceAll("0*(\\d{3})","$1");
//sop(str);

String[] s = str.split(" +");

//第一种排序方式
//Arrays.sort(s);

//第二种排序方式
TreeSet<String> ts = new TreeSet<String>();

for(String x:s)
ts.add(x);



for(String x:ts)
sop(x.replaceAll("0*(\\d+)","$1"));


}

public static void sop(Object obj){
System.out.println(obj);
}

}