Java中对List集合内的元素进行顺序、倒序、随机排序的示例代码详解编程语言

import java.util.Collections; 
import java.util.LinkedList; 
import java.util.List; 
 
public class Test { 
 
     List list  =   new  LinkedList(); 
     public   static   void  main(String[] args)  { 
        List list  =   new  LinkedList(); 
         for  ( int  i  =   0 ; i  <   9 ; i ++ )  { 
            list.add( " a " + i); 
        }  
        Collections.sort(list); // 顺序排列  
        System.out.println(list); 
         
        Collections.shuffle(list); // 混乱的意思  
        System.out.println(list); 
         
        Collections.reverse(list); // 倒序排列  
        System.out.println(list); 
         
        System.out.println(Collections.binarySearch(list,  " a5 " )); // 折半查找  
    }  
     
}