https://fgchen.com/wiki/index.php?action=history&feed=atom&title=SCJP_1.6%E7%89%88%E8%80%83%E9%A1%8C_081 2026-05-23T15:50:04Z 本 Wiki 上此頁面的修訂歷史 MediaWiki 1.29.0 https://fgchen.com/wiki/index.php?title=SCJP_1.6%E7%89%88%E8%80%83%E9%A1%8C_081&diff=1339&oldid=prev 2013-03-30T06:10:42Z

<p>新頁面: 1. interface DoStuff2{ 2. float getRange(int low, int high);} 3. 4. interface DoMore { 5. float getAvg(int a, int b, int c);} 6. 7. abstract class DoAbstract implements DoSt...</p> <p><b>新頁面</b></p><div> 1. interface DoStuff2{<br /> 2. float getRange(int low, int high);}<br /> 3.<br /> 4. interface DoMore {<br /> 5. float getAvg(int a, int b, int c);}<br /> 6.<br /> 7. abstract class DoAbstract implements DoStuff2, DoMore{}<br /> 8.<br /> 9. class DoStuff implements DoStuff2{<br /> 10. public float getRange(int x, int y){return 3.14f;}}<br /> 11.<br /> 12. interface DoAll extends DoMore{<br /> 13. float getAvg(int a, int b, int c, int d);}<br /> <br /> <br /> What is the result?<br /> A. The file will compile without error.<br /> B. Compilation fails. Only line 7 contains an error.<br /> C. Compilation fails. Only line 12 contains an error.<br /> D. Compilation fails. Only line 13 contains an error.<br /> E. Compilation fails. Only lines 7 and 12 contain errors.<br /> F. Compilation fails. Only lines 7 and 13 contain errors.<br /> G. Compilation fails. Lines 7, 12, and 13 contain errors.<br /> <br /> &lt;div class=&quot;toccolours mw-collapsible mw-collapsed&quot;&gt;<br /> &lt;span style=&quot;font-size:medium;&quot;&gt;解答&lt;/span&gt;<br /> <br /> ----<br /> &lt;div class=&quot;mw-collapsible-content&quot;&gt;<br /> &lt;span style=&quot;font-size: medium;&quot;&gt;Ans: A &lt;/span&gt;<br /> <br /> &lt;span style=&quot;font-size:medium;&quot;&gt; 解說:<br /> 此題可正確地編譯<br /> 說明：類別實作介面會繼承介面的抽象方法1．類別中有抽象的方法，該類別必須為抽象<br /> 2．類別若不為抽象，則必須對繼承的抽象方法提供實作<br /> <br /> &lt;/span&gt; <br /> &lt;/div&gt;&lt;/div&gt;<br /> {{SCJP 1.6版考題講解}}</div>

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