第110題

Given:
11. public static void test(Sting str){
12. int check = 4;
13. if(check = str.length()){
14. System.out.print(str.charAt(check -= 1) + ", ");
15. }else{
16. System.out.print(str.charAt(O) + ", ");
17. }
18. }
and the invocation:
21. test("four");
22. test("tee");
23. test("to");
What is the result?
A. r, t, t,
B. r, e, o,
C. Compilation fails.
D. An exception is thrown at runtime.
答案：C
參考：4-1 條件控制、8-2 方法種類與呼叫方式
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13. if(check = str.length()){ //if(check == str.length())