問題詳情

215.Given: 1. import java.util.*; 2. 3. public class LetterASort{ 4. public static void main(String[] args){ 5. ArrayList<String> strings = new ArrayList<String>(); 6. strings.add("aAaA"); 7. strings.add("AaA"); 8. strings.add("aAa"); 9. strings.add("AAaa"); 10. Collections.sort(strings); 11. for(String s : strings){System.out.print(s + " ");} 12. } 13. }What is the result?
(A)Compilation fails.
(B) aAaA aAa AAaa AaA
(C)AAaa AaA aAa aAaA
(D) AaA AAaa aAaA aAa
(E) aAa AaA aAaA AAaa

參考答案