https://fgchen.com/wiki/index.php?action=history&feed=atom&title=SCJP_1.6%E7%89%88%E8%80%83%E9%A1%8C_169SCJP 1.6版考題 169 - 修訂歷史2026-04-13T15:43:05Z本 Wiki 上此頁面的修訂歷史MediaWiki 1.29.0https://fgchen.com/wiki/index.php?title=SCJP_1.6%E7%89%88%E8%80%83%E9%A1%8C_169&diff=1248&oldid=prevIkk：新頁面: Given: 12. NumberFormat nf = NumberFormat.getInstance(); 13. nf.setMaximumFractionDigits(4); 14. nf.setMinimumFractionDigits(2); 15. String a = nf.format(3.1415926); 16. String b...2013-03-30T02:20:07Z<p>新頁面: Given: 12. NumberFormat nf = NumberFormat.getInstance(); 13. nf.setMaximumFractionDigits(4); 14. nf.setMinimumFractionDigits(2); 15. String a = nf.format(3.1415926); 16. String b...</p>
<p><b>新頁面</b></p><div> Given:<br />
12. NumberFormat nf = NumberFormat.getInstance();<br />
13. nf.setMaximumFractionDigits(4);<br />
14. nf.setMinimumFractionDigits(2);<br />
15. String a = nf.format(3.1415926);<br />
16. String b = nf.format(2);<br />
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Which two statements are true about The result if the default locale is Locale.US? (Choose two.)<br />
A. The value of b is 2.<br />
B. The value of a is 3.14.<br />
C. The value of b is 2.00.<br />
D. The value of a is 3.141.<br />
E. The value of a is 3.1415.<br />
F. The value of a is 3.1416.<br />
G. The value of b is 2.0000.<br />
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<span style="font-size:medium;">解答</span><br />
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<span style="font-size: medium;">Ans: C F </span><br />
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<span style="font-size:medium;"> 解說:<br />
那二個敘述是真的？ 預設的locale是Locale.US<br />
nf.setMaximumFractionDigits(4);<br />
設定小數位置最大4位，若發生截位，則進行4捨5入，如F<br />
nf.setMinimumFractionDigits(2);<br />
設定小數位置最小2位，如C<br />
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{{SCJP 1.6版考題講解}}</div>Ikk