<div dir="ltr">Hi,<div><br></div><div>

<div><span style="color:rgb(128,128,128);font-family:Menlo;font-size:12pt;font-style:italic">/**<br></span><span style="color:rgb(128,128,128);font-family:Menlo;font-size:12pt;font-style:italic"> * Writes some internal data into the beginning of the specified file.<br></span><span style="color:rgb(128,128,128);font-family:Menlo;font-size:12pt;font-style:italic"> */<br></span><span style="color:rgb(0,0,128);font-family:Menlo;font-size:12pt;font-weight:bold">protected void </span><font face="Menlo"><span style="font-size:12pt">writeHeader( RandomAccessFile file, </span></font><span style="color:rgb(0,0,128);font-family:Menlo;font-size:12pt;font-weight:bold">long </span><font face="Menlo"><span style="font-size:12pt">length, </span></font><span style="color:rgb(0,0,128);font-family:Menlo;font-size:12pt;font-weight:bold">int </span><font face="Menlo"><span style="font-size:12pt">segmentSize ) </span></font><span style="color:rgb(0,0,128);font-family:Menlo;font-size:12pt;font-weight:bold">throws </span><font face="Menlo"><span style="font-size:12pt">IOException</span></font><br><font face="Menlo"><span style="font-size:12pt">{</span></font></div><div><font face="Menlo"><span style="font-size:12pt">    file.seek(</span></font><span style="color:rgb(0,0,255);font-family:Menlo;font-size:12pt">0</span><font face="Menlo"><span style="font-size:12pt">);</span></font></div><div><font face="Menlo"><span style="font-size:12pt">    file.writeUTF(</span></font><span style="color:rgb(0,128,0);font-family:Menlo;font-size:12pt;font-weight:bold">"GH</span><font color="#008000" face="Menlo"><span style="font-size:16px"><b>”</b></span></font><font face="Menlo"><span style="font-size:12pt">); // 4 bytes</span></font></div><div><font face="Menlo"><span style="font-size:12pt">    file.writeLong(length); // 8 bytes</span></font><br><font face="Menlo"><span style="font-size:12pt">    file.writeInt(segmentSize); // 4 bytes</span></font><br><font face="Menlo"><span style="font-size:12pt">   </span></font> <span style="color:rgb(0,0,128);font-family:Menlo;font-size:12pt;font-weight:bold">for </span><font face="Menlo"><span style="font-size:12pt">(</span></font><span style="color:rgb(0,0,128);font-family:Menlo;font-size:12pt;font-weight:bold">int </span><font face="Menlo"><span style="font-size:12pt">i = </span></font><span style="color:rgb(0,0,255);font-family:Menlo;font-size:12pt">0</span><font face="Menlo"><span style="font-size:12pt">; i < </span></font><span style="color:rgb(102,14,122);font-family:Menlo;font-size:12pt;font-weight:bold">header</span><font face="Menlo"><span style="font-size:12pt">.</span></font><span style="color:rgb(102,14,122);font-family:Menlo;font-size:12pt;font-weight:bold">length</span><font face="Menlo"><span style="font-size:12pt">; i++)</span></font><br><font face="Menlo"><span style="font-size:12pt">    {</span></font><br><font face="Menlo"><span style="font-size:12pt">        file.writeInt(</span></font><span style="color:rgb(102,14,122);font-family:Menlo;font-size:12pt;font-weight:bold">header</span><font face="Menlo"><span style="font-size:12pt">[i]);</span></font><br><font face="Menlo"><span style="font-size:12pt">    }</span></font>
</div><div><font face="Menlo"><span style="font-size:12pt">}</span></font></div><div><font face="Menlo"><span style="font-size:12pt"><br></span></font></div><div><font face="Menlo"><span style="font-size:12pt">it's totally 100 bytes.</span></font></div><div><font face="Menlo"><span style="font-size:12pt">We only use 96 bytes of them.</span></font></div><div><font face="Menlo"><span style="font-size:12pt"><br></span></font></div><div><font face="Menlo"><span style="font-size:12pt">It's not a problem.</span></font></div><div><font face="Menlo"><span style="font-size:12pt">Just curious.</span></font></div><div><font face="Menlo"><span style="font-size:12pt"><br></span></font></div><div><font face="Menlo"><span style="font-size:12pt">It's better to use them all, to reduce any further question. :)</span></font></div><div><font face="Menlo"><span style="font-size:12pt"><br></span></font></div><div><div class="gmail_signature"><b>Best Regards,</b><div><b>ZhiQiang ZHAO</b></div></div></div>
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