lambda表达式--排序

[java]代码库

package s0403lambda表达式排序集合;

import java.util.Arrays;

public class Main {
   public static void main(String[] args){
	   
	   String[] players = {"Rafael Nadal", "Novak Djokovic",   
			    "Stanislas Wawrinka", "David Ferrer",  
			    "Roger Federer", "Andy Murray",  
			    "Tomas Berdych", "Juan Martin Del Potro",  
			    "Richard Gasquet", "John Isner"};  
	   
//运用了lambda表达式,比较简单的表达方式
//	   Comparator<String> sortByName = (String s1, String s2) -> (s1.compareTo(s2));  
//	   Arrays.sort(players, sortByName);    

	   Arrays.sort(players, (String s1, String s2) -> (s1.compareTo(s2)));  //最简单的表达方式
        Arrays.asList(players).forEach( element->System.out.println(element) );//输出每一个元素
     
        System.out.println();
        System.out.println();
        System.out.println();
        
        

     // 3使用 lambda expression 排序,根据最后一个字母  
        Arrays.sort(players, (String s1, String s2) -> (s1.charAt(s1.length() - 1) - s2.charAt(s2.length() - 1))); 
      Arrays.asList(players).forEach( element->System.out.println(element) );//输出每一个元素
   }
}