渋谷JVM#1 Immutable時代ã®ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªž Clojure
2. 特長 â— Lisp ◠関数型プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®ãŸã‚ã®ã‚‚㮠◠確固ãŸã‚‹ãƒ—ラットフォームã¨å…±ç”Ÿã™ã‚‹ JVM, .NET, Javascript上ã§ãれらã®åž‹,GC,例外機構を利用㗠ãªãŒã‚‰å‹•ä½œã™ã‚‹ â— Concurrencyã®ãŸã‚ã«ãƒ‡ã‚¶ã‚¤ãƒ³ã•ã‚ŒãŸ http://clojure.org/rationale
JITコンパイルã¯ã˜ã‚ã®ä¸€æ©
3. 阪田 浩一 æ–‡å¦éƒ¨å“²å¦ç§‘å’ 3 @jyukutyo 著書 3冊 関西Javaエンジニアã®ä¼š (関ジャãƒ) 発起人・é‹å–¶ Fight the Future http://jyukutyo.hatenablog.com/ ãƒ•ãƒªãƒ¥ãƒ¼æ ªå¼ä¼šç¤¾ 所属 プリ機ã¨é€£æºã™ã‚‹ ç”»åƒSNS「ピクトリンク〠開発・é‹ç”¨ã«å¾“事. 会員数800ä¸‡äººï¼ ScalaMatsuri スãƒãƒ³ã‚µãƒ¼ä¼æ¥ï¼ エンジニアæ´11å¹´ 35æ³ SIæ¥ç•Œã§ã®å®¢å…ˆå¸¸é§ 9å¹´ Webç³»? 2å¹´å¼· 塾講師アルãƒã‚¤ãƒˆ
A REST API in Clojure - IMHO
The true delight is in the finding out rather than in the knowing. -- Isaac Asimov Clojure is one of the most interesting new languages targeting the JVM. Initially only the JVM, in the meantime it is also available for JavaScript. Essentially, you can write Clojure and either execute it as Java program or JavaScript program, of course each flavor has its unique features as well. Clojure is a Lisp
Groovyã‹ã‚‰.NETã®ã‚¢ã‚»ãƒ³ãƒ–リを呼ã³å‡ºã—ãŸã‚Šã—ã¦ã¿ãŸ - 亀岡的プãƒã‚°ãƒ©ãƒžæ—¥è¨˜
æŸå‹‰å¼·ä¼šã§ç™ºè¡¨ã§ããªã‹ã£ãŸã®ã§ã€ç¾çŠ¶å ±å‘Š & メモãŒã¦ã‚‰ã«ã€‚ å‹•æ©Ÿã¨ã‹ ã¾ãã€ä¸€è¨€ã§ã„ã†ã¨ã€ŒSpockã€ä½¿ã„ãŸã„ï¼ï¼ãªã‚“ã§ã™ãŒã€‚ ã‚‚ã£ã¨è¨€ã†ã¨ã€ã€Œè¡¨ç¾åŠ›ã®é«˜ã„テストライブラリãŒä½¿ã„ãŸã„ã€ã€ã«ãªã‚‹ã‚“ã§ã™ãŒã€‚ C#ã ã¨SpecFlowã¨ã„ã†æ‰‹ã‚‚ã‚ã‚‹ã—ã€å€‹äººçš„ã«ã¯å«Œã„ã§ã¯ãªã„ã‚“ã§ã™ãŒã€ã„ã‹ã‚“ã›ã‚“二種類ã®ãƒ•ã‚¡ã‚¤ãƒ«ã‚’使ã‚ãªã„ã¨ã„ã‘ãªã„è¾›ã¿ã¨ã‹ã€ãã“らã¸ã‚“ã§ã‚¬ãƒ³ã‚¬ãƒ³é€²ã‚ã‚‹ã¾ã§ã«ã¯è‡³ã£ã¦ãªã„ãªï½žã€ã¨ã€‚ ã‚“ã§ã€ãµã¨JVMã®ä¸–界を見るã¨ã€ã‚„ã£ã±SpockãŒé…力的ã«è¦‹ãˆã‚‹ã‚“ã§ã™ã‚ˆãー。 ã¨ã„ã†ã‚ã‘ã§ã€å¤§ããªç›®çš„ã¯ã€Spockã§C#ã®ãƒ†ã‚¹ãƒˆã‚’書ããªã‚“ã§ã™ãŒã€ãã“ã¯ã¾ã一旦ãŠã„ã¦ãŠã„ã¦ã€ãã‚Œã®å¤§å‰æã¨ãªã‚‹ã€Groovy上ã‹ã‚‰.NETã®ãƒ©ã‚¤ãƒ–ラリを使ã†ã€ã¨ã„ã†ã®ã«å¯¾ã—ã¦ã®ã‚¢ãƒ—ãƒãƒ¼ãƒã‚’ã”紹介。ã—ã¾ã™ã€‚ Groovy上ã§.NETã®ãƒ©ã‚¤ãƒ–ラリを使ㆠJVMã‹ã‚‰.NETã®ãƒ©ã‚¤ãƒ–ラリを使ãˆã‚‹ã‚ˆã†ã«ã™ã‚‹ çµå±€JVM上ã§.NET
マルãƒã‚³ã‚¢æ™‚代ã®ãƒ—ãƒã‚°ãƒ©ãƒžã¯é–¢æ•°è„³ã«ãªã‚ã†ã€œScala・Clojure〜 - Tech-Sketch
å‰å›ž ã®è¨˜äº‹ã§ã¯ã€é–¢æ•°åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®æ¦‚念ã¨Java8ã«ã‚ˆã‚‹å®Ÿè£…例を示ã—ã¾ã—ãŸã€‚ã—ã‹ã—Java8ã®ãƒªãƒªãƒ¼ã‚¹ã¯æ¥å¹´ã¾ã§å»¶æœŸã•ã‚Œã¦ã—ã¾ã£ãŸãŸã‚ã€ä»Šã™ã試ã—ã¦ã¿ã‚‹ã«ã¯å°‘ã—ãƒãƒ¼ãƒ‰ãƒ«ãŒé«˜ã„ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“。 ãã“ã§ä»Šå›žã¯ã€Java7ã®JVM上ã§å‹•ä½œã™ã‚‹ä»£è¡¨çš„ãªé–¢æ•°åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã€ Scala 㨠Clojure を紹介ã—ã¾ã™ã€‚ Scalaã¨ã¯ ã§ã¯ã€ Scala ã‹ã‚‰ç´¹ä»‹ã—ã¾ã—ょã†ã€‚ Scalaã¯JVM上ã§å‹•ä½œã™ã‚‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã§ã€é–¢æ•°åž‹ã®ç‰¹å¾´ã¨ã‚ªãƒ–ジェクト指å‘ã®ç‰¹å¾´ã‚’åˆã‚ã›æŒã£ãŸã€æ¬²å¼µã‚Šãªè¨€èªžã§ã™ã€‚ JVM上ã§å‹•ä½œã™ã‚‹ãŸã‚ã€æ—¢å˜ã®è†¨å¤§ãªJavaライブラリをãã®ã¾ã¾æµç”¨ã§ãã€JVMã®ãƒ‘フォーマンスãƒãƒ¥ãƒ¼ãƒ‹ãƒ³ã‚°ãƒŽã‚¦ãƒã‚¦ã‚’最大é™æ´»ç”¨ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ã¾ãŸJavaよりも豊富ãªè¨˜è¿°å½¢å¼ã‚’æŒã¡ãªãŒã‚‰ã‚‚Javaオブジェクトをãã®ã¾ã¾æ‰±ãˆã€å¼·åŠ›ãªåž‹æŽ¨è«–ã‚’æŒã£ãŸé™çš„型付ã‘言語ã§ã‚‚ã‚ã‚‹ãŸã‚ã€å®šåž‹çš„ã§å†—
Javaã§ãƒ’ãƒ¼ãƒ—é ˜åŸŸã‚’ä½™ã‚‰ã›ãŸã¾ã¾OutOfMemoryErrorを出ã™æ–¹æ³• - 西尾泰和ã®ã¯ã¦ãªãƒ€ã‚¤ã‚¢ãƒªãƒ¼
先日ã€ã“ã‚“ãªå•é¡Œã‚’見ã‹ã‘ãŸã®ã ã‘ã©ã‚‚ã€Javaã®GCã«ã¯ã‚ã¾ã‚Šè©³ã—ããªã„ã®ã§ç”ãˆãŒã‚ã‹ã‚‰ãªã‹ã£ãŸã€‚ OutOfMemoryErrorãŒç™ºç”Ÿã—ã¾ã—ãŸã€‚(ä¸ç•¥)ヒープメモリã¯è¶³ã‚Šã¦ã„るよã†ã§ã™ã€‚åŽŸå› ã¨ã—ã¦ä½•ãŒè€ƒãˆã‚‰ã‚Œã¾ã™ã‹ï¼Ÿ http://d.hatena.ne.jp/iad_otomamay/20130318/1363596244 ãªã‚“ã§ã ã‚ã†ãªãã¨æ€ã£ã¦ã„ãŸã¨ã“ã‚id:moriyoshiãŒã€ŒPermanenté ˜åŸŸãŒã‚ãµã‚ŒãŸã‚“ã˜ã‚ƒãªã„ã®ã€ã¨ä¸€è¨€ã€‚「Permanenté ˜åŸŸã€ã§æ¤œç´¢ã—ã¦ã¿ã‚‹ã¨ã€ãªã‚‹ã»ã©ã€ãã†ã„ã†ã“ã¨ãªã®ã‹ãƒ¼ã€‚ ã¨ã„ã†ã‚ã‘ã§æ—©é€Ÿãれをå†ç¾ã•ã›ã‚‹ã‚³ãƒ¼ãƒ‰ã‚’書ã„ã¦ã¿ãŸã€‚ヒープã®å¤§éƒ¨åˆ†ãŒãŒã‚‰ç©ºããªã®ã«Permanenté ˜åŸŸã ã‘99%ã«ãªã£ã¦ã„ã‚‹ã®ãŒã‚ã‹ã‚‹ã‹ã¨æ€ã†ã€‚ Exception in thread "main" [Full GC [Tenured: 515K->515K(56896K
Inside The Java Virtual Machine
The document discusses a programming project in Java. It includes code for a Main class with a main method that prints "Hello World". There are also hexadecimal strings and copyright notices from the company Plugram, Inc. suggesting it is describing how to set up and run a simple Java program.Read less
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