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SCJP 1.6版考題 118 - 修訂歷史
2026-04-13T11:42:14Z
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Ikk：新頁面: Given 10. class Foo{ 11. static void alpha(){/* more code here */} 12. void beta() {/* more code here */) 13. } Which two statements are true? (Choose two.) A. Foo.beta...
2013-03-30T04:15:40Z
<p>新頁面: Given 10. class Foo{ 11. static void alpha(){<span dir="auto"><span class="autocomment">more code here：</span>} 12. void beta() {<span dir="auto"><span class="autocomment">more code here：</span>) 13. } Which two statements are true? (Choose two.) A. Foo.beta...</span></span></p>
<p><b>新頁面</b></p><div> Given<br />
10. class Foo{<br />
11. static void alpha(){/* more code here */}<br />
12. void beta() {/* more code here */)<br />
13. }<br />
<br />
<br />
Which two statements are true? (Choose two.)<br />
A. Foo.beta() is a valid invocation of beta().<br />
B. Foo.alpha() is a valid invocation of alpha().<br />
C. Method beta() can directly call method alpha().<br />
D. Method alpha() can directly call method beta().<br />
<br />
<div class="toccolours mw-collapsible mw-collapsed"><br />
<span style="font-size:medium;">解答</span><br />
<br />
----<br />
<div class="mw-collapsible-content"><br />
<span style="font-size: medium;">Ans: B C </span><br />
<br />
<span style="font-size:medium;"> 解說:<br />
alpha是類別方法<br />
beta是物件方法<br />
要存取類別方法的方式為<br />
Foo.alpha()<br />
在物件方法可以直接存取類別方法 <br />
(因為物件有多個，類別只有一個，從任何一個物件方法中存取類別方法，不會有模糊的語意，<br />
但若要從類別方法中存取物件成員，則有不明確的語意，因為要存取那一個物件的成員必須要明確地述明)<br />
<br />
</span> <br />
</div></div><br />
{{SCJP 1.6版考題講解}}</div>
Ikk