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<td width="90%"><font size="4" face="Verdana, Arial, Helvetica"><b>練習 </b></font></td><td width="200" align="right"><font size="1" face="Verdana, Arial, Helvetica"><nobr>   第 5 頁（共5 頁）</nobr></font></td>
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<font size="2" face="Verdana, Arial, Helvetica">
<p>
						
<b>問題： </b>
					
</p>
<p>編譯并運行以下代碼會輸出什么？ </p>
<pre>
<code style="font-family: Courier New, Courier, monospace; font-size: 12">
  int i = 3; 
  switch (i) 
  { 
    default: 
      System.out.println("default"); 
    case 0: 
      System.out.println("zero"); 
    case 1: 
      System.out.println("one"); 
      break;
    case 2: 
     System.out.println("two"); 
  }
</code>
</pre>
<p>
						
<b>選項： </b>
					
</p>
<ul>
<li>A. default </li>
<li>B. default, zero, one </li>
<li>C. 編譯錯誤 </li>
<li>D. 無輸出顯示</li>
</ul>
<p>
						
<b>正確答案： </b>
					
</p>
<ul>
<li>B</li>
</ul>
<p>
						
<b>說明： </b>
					
</p>
<p>盡管 <code>default</code> 語句通常放在最后，但是它不是必須要在 case 塊中作為最后一個選項。因為沒有找到與表達式匹配的 case 標號，所以會執行 default 標號，代碼繼續向下執行直到遇到 <code>break</code> 語句。 </p>
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