第3回 Excelの扱い方
Javaを使って普段の仕事をラクにするツールを作っていくこの連載。第3回は，おなじみの表計算ソフトExcelをJavaからどう扱うかを説明します。簡単な家計簿ツールの作成を通じて，JavaによるExcel操作の基礎を習得していくことにしましょう。 皆さん，こんにちは！ kikainekoです。この連載では，日々の定型的な業務をJavaで自動化してラクする方法を紹介しています。今回は，皆さんが仕事でもっともよく使用していると思われる，ExcelファイルをJavaから操作してみましょう！ 「ExcelにはVBA（Visual Basic for Applications：ExcelやWordなどMicrosoft Officeのマクロ言語）があるのに，わざわざJavaから操作する必要があるの？」と思われるかもしれません。確かに，Excelへのアクセスのしやすさだけを考えると，VBAのほうが簡単
Apache POIでExcelを操作
Apache POI(以前はJakarta POIと呼ばれていました)はJavaアプリケーションからExcelやWordなどのMicrosoft製品のフォーマットファイルを読み書きするためのAPIです。 今回は特にExcelのファイルを対象として試していきますが、Excelのファイルの読み書きではApache POIの中のHSSFとXSSFを使用します。HSSFはExcel2003までのファイルフォーマットに対応したもので、XSSFはExcel2007のOOXML(.xlsx)ファイルフォーマットに対応したものです。 Apache POI 3.6のダウンロード Apache POI 3.6のインストール クラスパスの設定
C++ Excel Library to read/write xls/xlsx files - LibXL
Direct reading and writing Excel files LibXL is a library that can read and write Excel files. It doesn't require Microsoft Excel and .NET framework, combines an easy to use and powerful features. Library can be used to Generate a new spreadsheet from scratch Extract data from an existing spreadsheet Edit an existing spreadsheet LibXL can help your applications in exporting and extracting data to/
ExcelFormat Library
ExcelFormat allows reading, writing, and editing of XLS (BIFF8 format) files using C++. Download demo project - 54.37 KB Download source - 62.6 KB Introduction There has been the C++ project BasicExcel for quite some years now. It is very useful to read and write Excel sheets in .xls format. However, it contains only very basic functionality. There are missing features like text formatting using f
xlsLib
A multiplatform C++ library for dynamic generation of Excel .xls files containing multiple worksheets. Unlike .csv files, these can be directly opened by Excel and thus provide an excellent way to output large data sets that require further analysis. To see the latest changes, select "Files" and view the README text displayed at the bottom of that pane. IMPORTANT: Major changes are contained in th
Apache POI - the Java API for Microsoft Documents
25 November 2023 - POI 5.2.5 available The Apache POI team is pleased to announce the release of 5.2.5. Several dependencies were updated to their latest versions to pick up security fixes and other improvements. A summary of changes is available in the Release Notes. A full list of changes is available in the change log. People interested should also follow the dev list to track progress. See the
MidiShare
A real-time operating system for musical applications. MidiShare has been designed in 1989 in response to problems commonly met in the development of realtime music software. It provides high level services to developers and ensures platform independance since it supports GNU/Linux, MacOS X and Windows Freely available on the Internet to developers since several years, the MidiShare development ki
MusicXML Library
MusicXML is a music interchange format designed for notation, analysis, retrieval, and performance applications. The MusicXML format has been initialy developped by Recordare. It is open for use by anyone under a royalty-free license. The MusicXML library is a portable C++ library designed close to the MusicXML format and intended to facilitate MusicXML support. The MusicXML library is an open sou
C++/Tk
proc hello {} { puts "Hello Tcl/Tk!" } button ".b" -text "Say Hello" -command hello pack ".b" -padx 20 -pady 6 #include "cpptk.h" #include <stdio.h> using namespace Tk; void hello() { puts("Hello C++/Tk!"); } int main(int, char *argv[]) { init(argv[0]); button(".b") -text("Say Hello") -command(hello); pack(".b") -padx(20) -pady(6); runEventLoop(); } Apart from the scaffolding necessary in C++, bot
The Synthesis ToolKit in C++ (STK)
The Synthesis ToolKit in C++ (STK) is a set of open source audio signal processing and algorithmic synthesis classes written in the C++ programming language. STK was designed to facilitate rapid development of music synthesis and audio processing software, with an emphasis on cross-platform functionality, realtime control, ease of use, and educational example code. The Synthesis ToolKit is extreme
Fast Light Toolkit - Fast Light Toolkit (FLTK)
Site News Dec 01, 2018: The FLTK Team is proud to announce that we moved our source code repository to Git and the FLTK website to a new server. Please see article FLTK Moved to Git and to a new Server. May 2013: Back in April 2013 we had to move the fltk.general and fltk.coredev lists to Google Groups. Please join us there to reconnect. All postings from today on back through 2004 are available o
Simple DirectMedia Layer - Homepage
Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D. It is used by video playback software, emulators, and popular games including Valve's award winning catalog and many Humble Bundle games. SDL officially supports Windows, macOS, Linux, iOS, and Android. Support for
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AVR Robotics API (AVRRA)
Frequenly Asked Questions - Clam
Raw Material Software •
Software | The Music Notation Project
jMusic - Computer music composition in Java.
INScore
Guido Engine Library
IBM Developer
