Java——字符串排序

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class Test {

    public static void main(String[] args) {
        List<String> list = new ArrayList<String>();
        list.add("c");
        list.add("b");
        list.add("d");
        list.add("a");
        System.out.println(list);//[c, b, d, a]
        Collections.sort(list);//對list集合進行排序
        System.out.println(list);//[a, b, c, d]
    }

}

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class Test2 {

    public static void main(String[] args) {
        List<String> list = new ArrayList<String>();
        list.add("caa");
        list.add("cab");
        list.add("daa");
        list.add("add");
        System.out.println(list);//[caa, cab, daa, add]
        Collections.sort(list);//對list集合進行排序
        System.out.println(list);//[add, caa, cab, daa]
    }

}