Java-集合（没做出来）第四题 （List）写一个函数reverseList，该函数能够接受一个List，然后把该List 倒序排列。 例如： List list = new ArrayList(); list.add(“Hello”); list.add(“World”); list.add(“Learn”); //此时list 为Hello World Learn reverseL

package Test03;

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

public class ReverseList {

    public static void main(String[] args) {
        
        List<String> list = new ArrayList<>(); 
        list.add("Hello"); 
        list.add("World"); 
        list.add("Learn");                     //此时list 为Hello World Learn 
        
        StringBuffer a = new StringBuffer();
        for(String s:list){
                a.append(s);
        }
        System.out.println(a.toString());
        //reverseList(list);
        
        //StringBuilder b = new StringBuilder(list.toString());
        
        //System.out.println(list);
        System.out.println(a.reverse().toString());

    }

}