/*

* @由于个人水平有限, 难免有些错误, 还请指点:

* @Author: cpu_code

* @Date: 2020-09-17 12:54:31

* @LastEditTime: 2020-09-17 12:59:02

* @FilePath: \java\aggregation\aggregation14.java

* @Gitee: [https://gitee.com/cpu_code](https://gitee.com/cpu_code)

* @Github: [https://github.com/CPU-Code](https://github.com/CPU-Code)

* @CSDN: [https://blog.csdn.net/qq_44226094](https://blog.csdn.net/qq_44226094)

* @Gitbook: [https://923992029.gitbook.io/cpucode/](https://923992029.gitbook.io/cpucode/)

*/

package aggregation;

import java.util.ArrayList;

import java.util.Collections;

import java.util.Comparator;

public class aggregation14 {

public static void main(String[] args) {

ArrayList<String> list = new ArrayList<String>();

list.add("cpucode");

list.add("cpu");

list.add("hello");

//排序方法 按照第一个单词的降序

Collections.sort(list, new Comparator<String>() {

@Override

public int compare(String o1, String o2) {

return o2.charAt(0) - o1.charAt(0);

}

});

System.out.println(list);

}

}

/*

[hello, cpucode, cpu]

*/