https://fgchen.com/wiki/index.php?action=history&feed=atom&title=SCJP_1.6%E7%89%88%E8%80%83%E9%A1%8C_149SCJP 1.6版考題 149 - 修訂歷史2026-05-04T08:35:16Z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_149&diff=1270&oldid=prevIkk：新頁面: Place the Fragments into the program, so that the program will get lines from a text file. display them, and then close all the resources. 檔案:SCJP149-1 2.png <div class="t...2013-03-30T03:01:30Z<p>新頁面: Place the Fragments into the program, so that the program will get lines from a text file. display them, and then close all the resources. <a href="/wiki/index.php?title=%E6%AA%94%E6%A1%88:SCJP149-1_2.png" title="檔案:SCJP149-1 2.png">檔案:SCJP149-1 2.png</a> <div class="t...</p>
<p><b>新頁面</b></p><div> Place the Fragments into the program, <br />
so that the program will get lines from a text file. display them, and then close all the resources.<br />
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[[檔案:SCJP149-1 2.png]]<br />
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<span style="font-size:medium;">解答</span><br />
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<span style="font-size: medium;">Ans: <BR>[[檔案:SCJP149-2 2.jpg]] </span><br />
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<span style="font-size:medium;"> 解說:<br />
在Java中開檔的方式是先用File類別新增一個File物件(檔名)<br />
再用FileReader類別新增一個對File物件的讀取物件<br />
BufferedReader類別提供一個緩衝式的檔案讀取方式…<br />
緩衝區的意思是會在檔案實際裝置與CPU之間配置一個速度介於二者之間的記憶體做為存取緩衝<br />
因此最後要進行close，以便將還在記憶體中的資料安全地寫入檔案實際的位置。<br />
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{{SCJP 1.6版考題講解}}</div>Ikk