题目二：

import java.util.Scanner;

public class two{

public static void main(String[] args) {

Scanner input = new Scanner(System.in);

System.out.print("请输入英文：");

String str = input.nextLine();

String[] strArr = str.split("\\s+|[,]");

StringBuffer result = new StringBuffer();

for(int i = strArr.length -1;i >=0; i--){

result.append(strArr[i] + " ");

}

result.setCharAt(str.length()-0, (char) 0);

System.out.println("颠倒顺序后的结果为："+result.toString());

}

}