https://fgchen.com/wiki/index.php?action=history&feed=atom&title=SCJP_1.6%E7%89%88%E8%80%83%E9%A1%8C_044 2026-05-23T15:42:17Z 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_044&diff=1385&oldid=prev 2013-03-30T07:42:27Z

<p>新頁面: 1. class Employee{ 2. String name; double baseSalary; 3. public Employee(String name, double baseSalary){ 4. this.name = name; 5. this.baseSalary = baseSalary; 6. ...</p> <p><b>新頁面</b></p><div> 1. class Employee{<br /> 2. String name; double baseSalary;<br /> 3. public Employee(String name, double baseSalary){<br /> 4. this.name = name;<br /> 5. this.baseSalary = baseSalary;<br /> 6. }<br /> 7. }<br /> 8. public class SalesPerson extends Employee{<br /> 9. double commission;<br /> 10. public SalesPerson(String name,<br /> 11. double baseSalary, double commission){<br /> 12. //insert code here<br /> 13. }<br /> 14.}<br /> <br /> <br /> Which two code fragments, inserted independently at line 12, will compile? (Choose two.)<br /> <br /> A. super(name, baseSalary);<br /> B. this.commission = commission;<br /> C. super();<br /> this.commission = commission;<br /> D. this.commission = commission;<br /> super();<br /> E. super(name, baseSalary);<br /> this.commission = commission;<br /> F. this.commission = commission;<br /> super(name, baseSalary);<br /> G. super(name, baseSalary, commission);<br /> <br /> <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 E &lt;/span&gt;<br /> <br /> &lt;span style=&quot;font-size:medium;&quot;&gt; 解說:<br /> 由於父類別Employee沒有“無參數”的建構子，所以本程式要能編譯，必須要避免編譯器為SalesPerson的建構子加上super()，<br /> 於是就加A/E，加上明確的呼叫父類別的建構子Employee(String name, double baseSalary)<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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