第159題

Given:
11. double input = 314159.26;
12. NumberFormat nf = NumberFormat.getInstance(Locale.ITALIAN);
13. String b;
14. //insert code here
Which code, inserted at line 14, sets the value of b to 314.159,26?
A. b = nf.parse(input);
B. b = nf.format(input);
C. b = nf.equals(input);
D. b = nf.parseObject(input);
答案：B
參考：11-4-1 NumberFormat類別

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314.159,26 在義大利文裡,小數點是千分符號, 逗點是小數點, 跟一般常用相反.
nf取得ITALIAN格式後在 格式化.