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2004-11-01

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Programming Legends Debate .Net, J2EE ¡£

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"We'd be crazy not to recognize the success the competition is having," Hejlsberg said. "I think it's obvious to anybody that there's competition between .Net and Java. And I think we'd be stupid to ignore what they've done there. I've seen further by standing on the shoulders of giants. There is so much in this industry that there's really no reason to reinvent. So I think we are all learning from each other."

Crupi, a respected J2EE architect, said, "I love what they have done with annotations and Web services."

For instance, both Box and Hejlsberg wore black shirts. Fowler said, "I see the Microsoft guys are dressed in black. Are they taking this evil empire thing a little too seriously?"

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2004-11-02

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2004-11-03

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import java.util.Iterator;
public class Each {
    public interface Block {
        void call(Object o);
    }
    public static void call(Iterator i, Block b) {
        for (;i.hasNext(); ) {
            b.call(i.next());
        }
    } 
}
----------------
    Each.call(list.iterator(), new Each.Block() {
        public void call(Object o) {
            bar((Foo)o);
        }
    });
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public class SafeExecution {
    public interface Block {
        void prepare() throws Exception;
        void call(Object ... args) throws Exception;
        void finish() throws Exception;
    }
    // Varargs¤Ã¤Æ¤³¤ó¤Ê»È¤¤Êý¤Ç¼õ¤±ÅϤ·¤Ç¤­¤ë¤Î¤«¤Ê¡©
    public static void execute(Block b, Object ... args) {
        log(args);
        try {
            log("start");
            b.prepare();
            log("prepared");
            b.call(args);
            log("success");
        } catch (Exception e) {
            log(e);
        } finally {
            try { b.finish(); } catch (Exception e) { log(e); }
        }
    }
}
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public class Foo {
    public ResultData {
        String name;
        private ResultData(String s) {
            name = s;
        }
        public String getName() {
            return name;
        }
    }
    Connection conn;
    // DI.
    public void setConnection(Connection c) {
        conn = c;
    }
    public ResultData searchName(String address, String account) {
        assert conn != null;
        ResultSet rs = null;
        try {
        ....
            ResultData r = new ResultData(rs.getString(1));
            return r; // ¤³¤¦¤¤¤¦Ï¢Â³¤·¤¿2¹Ô¤Ç¤·¤«½Ð¸½¤·¤Ê¤¤ÊÑ¿ô¤ËÊ£¿ôʸ»ú³ä¤êÅö¤Æ¤ë¤Î¤Ï¥à¥À¡£
        } finnaly {
            if (rs != null) {
                try { rs.close(); } catch (SQLException e) {}
            }
        }
    }
}

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2004-11-17

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# playing.rb
require 'win32ole'
 
itunes = WIN32OLE.new("iTunes.Application") 
track = itunes.CurrentTrack
if track.nil?
  puts "not playing"
else
  puts "#{track.Artist} - #{track.Name} (#{track.Album})"
end
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require 'win32ole'
 
if ARGV.length != 2
  puts 'usage: ruby plist.rb list-name track-name'
  exit(1)
end
itunes = WIN32OLE.new("iTunes.Application") 
list = itunes.createPlayList(ARGV[0])
r = Regexp.compile(ARGV[1], Regexp::IGNORECASE)
itunes.libraryPlaylist.tracks.each do |trk|
  if r.match(trk.name)
    list.addFile(trk.location)
  end
end
list.playFirstTrack

track#location¤Ï¥Õ¥¡¥¤¥ë̾¡Ê¿ʬURL¤È¤«¤â¤¢¤ê¡Ë¤À¤Ã¤¿¡£

list#addFile¤Î¤Û¤«¤Ëlist#addUrl¤â¤¢¤ë¡£¤Ã¤Æ¤¤¤¦¤«list#addTrack¤È¤¤¤¦¤Î¤â¤¢¤ë¤«¤éÁÇľ¤Ë¤ä¤ë¤Ê¤éľÀܥȥé¥Ã¥¯¤òÄɲ乤ë¤Û¤¦¤¬Îɤ¤¤«¤â

  if r.match(trk.name)
    list.addTrack(trk)
  end

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require 'win32ole'
 
h = Hash.new
a = []
itunes = WIN32OLE.new("iTunes.Application") 
itunes.libraryPlaylist.tracks.each do |trk|
  s = sprintf("%s %s %s", trk.name, trk.artist, trk.time)
  if h.key?(s)
    puts s
    a << trk
  else
    h[s] = true
  end
end
a.each do |trk|
#  File::unlink(trk.location) #¥³¥á¥ó¥È¤Ï³°¤µ¤Ê¤¤¤Û¤¦¤¬Îɤ¤¤È»×¤¦¤¬¡£
  trk.delete
end

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require 'win32ole'
 
a = []
itunes = WIN32OLE.new("iTunes.Application") 
itunes.libraryPlaylist.tracks.each do |trk|
  begin
    if trk.location.empty?
      a << trk
    end
  rescue
    p trk.name
  end
end
a.each do |trk|
  trk.delete
end

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2004-11-18

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2004-11-26

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2004-11-28

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import java.io.FileOutputStream;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
 
public class PoiTest {
    static void setData(HSSFSheet s, int n) {
        for (int i = 0; i < n; i++) {
            HSSFRow r = s.createRow(i);
            for (int j = 0; j < 8; j++) {
                HSSFCell c = r.createCell((short)j);
                c.setEncoding(HSSFCell.ENCODING_UTF_16);
                c.setCellValue((n % 2 == 1) ? "´Á»ú¤Î¥Æ¥­¥¹¥È" : "abc");
            }
            HSSFCell c = r.createCell((short)8);
            c.setCellValue(i);
        }
    }
 
    public static void main(String[] args) throws Exception {
        HSSFWorkbook hw = new HSSFWorkbook();
        HSSFSheet st = hw.createSheet();
        hw.setSheetName(0, "ÆüËܸì", HSSFWorkbook.ENCODING_UTF_16);
        st.setColumnWidth((short)0, (short)(256 * 12));
        setData(st, 11);
        st = hw.createSheet("English");
        setData(st, 20);
        FileOutputStream fo = new FileOutputStream("test.xls");
        hw.write(fo);
        fo.close();
    }
}
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$ javac -encoding Windows-31J -classpath poi-2.5.1-final-20040804.jar PoiTest.java
$ java -cp .:poi-2.5.1-final-20040804.jar PoiTest
$ 
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2004-11-29

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ColumnNumber

[Input]

Number of the column for which to return data. Result set columns are numbered in increasing column order starting at 1. The bookmark column is column number 0; this can be specified only if bookmarks are enabled.

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2003|06|07|08|09|10|11|12|
2004|01|02|03|04|05|06|07|08|09|10|11|12|
2005|01|02|03|04|05|06|07|08|09|10|11|12|
2006|01|02|03|04|05|06|07|08|09|10|11|12|
2007|01|02|03|04|05|06|07|08|09|10|11|12|
2008|01|02|03|04|05|06|07|08|09|10|

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