阅读下面的程序 public class Example{ public static void main(String[] args) { String[] strs = { "Tom", "Jerry", "Donald" }; // foreach循环遍历数组 for(String str : strs) { str = "Tuffy"; } System.out.println(strs[0] + "," + strs[1] + "," + strs[2]); } } 下列选项中,程序的运行结果是( )