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Javaç”¨ã®RVMã‚¯ãƒãƒ¼ãƒ³ã€Œjenvã€ | ã‚½ãƒ•ãƒˆã‚¢ãƒ³ãƒ†ãƒŠ
jenvã¨å‘¼ã°ã‚Œã‚‹javaç’°å¢ƒã®ãŠæ‰‹è»½åˆ‡ã‚Šæ›¿ãˆãƒ„ãƒ¼ãƒ«ãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã¾ã—ãŸã€‚rubyç”¨ã®ç’°å¢ƒåˆ‡ã‚Šæ›¿ãˆãƒ„ãƒ¼ãƒ«RVMã®Javaç‰ˆã‚’ã‚¤ãƒ¡ãƒ¼ã‚¸ã—ã¦ã‚‚ã‚‰ãˆã°ç†è§£ã—ã‚„ã™ã„ã¨æ€ã„ã¾ã™ã€‚ ãŸã OSã¨ã—ã¦Unix based systemã‚’æƒ³å®šã—ã¦ã„ã‚‹ã‚ˆã†ãªã®ã§ã€Windowsã¯å¯¾è±¡å¤–ã¿ãŸã„ã§ã™(Mac / Linuxã¯OK)ã€‚ ç‰¹å¾´ ä»¥ä¸‹ã®ã‚ˆã†ãªç‰¹å¾´ãŒã‚ã’ã‚‰ã‚Œã¦ã„ã¾ã™ã€‚ 1.6 / 1.7 / 1.8ã®ã‚ˆã†ãªJavaã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã‚’ç°¡å˜ã«ç®¡ç†ã™ã‚‹ã“ã¨ãŒã§ãã‚‹ã€‚ Ant / Maven / Tomcatã®ã‚ˆã†ãªJavaãƒ„ãƒ¼ãƒ«ã‚’ç°¡å˜ã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã™ã‚‹ã“ã¨ãŒã§ãã‚‹ã€‚ æ–°ã—ã„ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã€å¤ã„ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã‚’ã‚¢ãƒ³ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã™ã‚‹ã¨ã„ã£ãŸã€ãƒãƒ¼ã‚¸ãƒ§ãƒ³ç®¡ç†ãŒç°¡å˜ã€‚ IDEãƒ•ãƒ¬ãƒ³ãƒ‰ãƒªãƒ¼ãªãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªæ§‹é€ ã€‚ ç°¡å˜ã«æ‹¡å¼µã§ãã‚‹ã€‚è‡ªåˆ†è‡ªèº«ã®jenvã‚’ã‚»ãƒƒãƒˆã‚¢ãƒƒãƒ—ã—ã€é–‹ç™ºç’°å¢ƒã‚’ç®¡ç†ã§ãã‚‹ã€‚ ç’°å¢ƒã‚’ç°¡å˜ã«ãƒãƒƒã‚¯ã‚¢ãƒƒãƒ—ã§ãã‚‹
poad1010 2014/03/01
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Javaã€ãƒãƒ¼ã‚¸ãƒ§ãƒ³ç•ªå·ã®ãƒ«ãƒ¼ãƒ«ã‚’å¤‰æ›´ - 20ã®å€æ•°ã€5ã®å€æ•°ã€1è¶³ã—ã¦â€¦â€¦
Oracleã¯ã“ã“ã®ã¨ã“ã‚ã€é »ç™ºã™ã‚‹Javaã®ãƒ–ãƒ©ã‚¦ã‚¶ã«é–¢ä¿‚ã—ãŸã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£ãƒ›ãƒ¼ãƒ«ã«é ã‚’æ‚©ã¾ã›ã¦ã„ã‚‹ã€‚ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£å¯¾ç–ã«åŠ›ã‚’å…¥ã‚Œã‚‹ãŸã‚ã«é–‹ç™ºãƒªã‚½ãƒ¼ã‚¹å‰²ã‚Šå½“ã¦ãŸã“ã¨ã§ã€å½“åˆäºˆå®šã—ã¦ã„ãŸJava 8ã®ãƒªãƒªãƒ¼ã‚¹æ—¥ã‚’å…ˆå»¶ã°ã—ã«ã™ã‚‹ãªã©ã®å¤‰æ›´ã‚’å®Ÿæ–½ã—ã¦ã„ã‚‹ã€‚ãã—ã¦ä»Šåº¦ã¯ãƒãƒ¼ã‚¸ãƒ§ãƒ³ç•ªå·ã®å‰²ã‚ŠæŒ¯ã‚Šã‚‚å¤‰æ›´ã™ã‚‹ã“ã¨ã«ãªã£ãŸã€‚ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£ãƒ‘ãƒƒãƒã®æä¾›é »åº¦ãŒå¤šã™ãŽã€ç¾åœ¨ã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ç•ªå·ãƒ«ãƒ¼ãƒ«ã§ã¯å¯¾å¿œã§ããªããªã£ãŸãŸã‚ã ã¨èª¬æ˜Žã—ã¦ã„ã‚‹ã€‚ ã€ŒJava SE - Change in Version Numbering Schemeã€ã§èª¬æ˜Žã•ã‚Œã¦ã„ã‚‹æ–°ã—ã„ãƒãƒ¼ã‚¸ãƒ§ãƒ³ç•ªå·ãƒ«ãƒ¼ãƒ«ã‚’ã¾ã¨ã‚ã‚‹ã¨æ¬¡ã®ã¨ãŠã‚Šã€‚ Limited Updateã¯20ã®å€æ•°ã‚’å‰²ã‚Šå½“ã¦ã‚‹ Critical Patch Update(CPU)ã«ã¯5ã®å€æ•°ã‚’å‰²ã‚Šå½“ã¦ã‚‹ã€‚å€æ•°ãŒå¶æ•°ã«ãªã‚‹å ´åˆã«ã¯ã•ã‚‰ã«1ã‚’åŠ ç®—ã—ã¦å¥‡æ•°ã¸å¤‰æ›´ã™ã‚‹ Limited Updateã¨C
poad1010 2013/05/23
JDK7

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Java

Oracle

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2013

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Jenkinsã¨Gitã¨Spockã§ç‹¬ã‚Šç¶™ç¶šçš„ã‚¤ãƒ³ãƒ†ã‚°ãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ - What is it, naokirin?
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poad1010 2013/02/23
Groovy

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plugin

development

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Jenkins
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Install Oracle Java 7 in Ubuntu Or Linux Mint Via PPA Repository
Update: Java 7 is no longer supported by Oracle. The binaries are no longer available for download, but if you have an Oracle account, you can still download it after logging in. Install the latest Oracle Java 17 LTS from PPA instead. The Oracle Java 7 installer in this article will continue to work only if you manually download Oracle JDK 7 (version 7u80 for 32bit and 64bit or 7u60 for arm), plac
poad1010 2013/02/17
Oracle

JDK

java

linux

apt

java7

JDK7

ubuntu

ppa
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ãƒ©ãƒ ãƒ€å¼ã€JARè„±ç„ã€JavaScript/Node.jsã«æŽ¥è¿‘ã™ã‚‹JDK 8ã€ãã—ã¦9ã¸
ãƒ©ãƒ ãƒ€å¼ã€JARè„±ç„ã€JavaScript/Node.jsã«æŽ¥è¿‘ã™ã‚‹JDK 8ã€ãã—ã¦9ã¸ï¼šJavaOne Tokyo 2012ã¾ã¨ã‚ãƒ¬ãƒãƒ¼ãƒˆï¼ˆå¾Œç·¨ï¼‰ï¼ˆ1/3 ãƒšãƒ¼ã‚¸ï¼‰ Lambdaã€Jigsawã€Nashornã¨ã¯ 4æœˆ4æ—¥ã¨5æ—¥ã®2æ—¥é–“ã«æ¸¡ã£ã¦é–‹å‚¬ã•ã‚ŒãŸæ—¥æœ¬ã‚ªãƒ©ã‚¯ãƒ«ä¸»å‚¬ã®Java æŠ€è¡“è€…å‘ã‘ã‚¤ãƒ™ãƒ³ãƒˆã€ŒJavaOne Tokyo 2012ã€ã§ã¯ã€å…¨å›½ã‹ã‚‰Javaé–‹ç™ºè€…ãŒé›†ã¾ã‚Šã€Javaå‘¨è¾ºã®æœ€æ–°å‹•å‘ã‚„æŠ€è¡“çš„ãªTipsã€æ´»ç”¨äº‹ä¾‹ãªã©ã®è©±é¡Œã«ç››ã‚Šä¸ŠãŒã£ãŸã€‚ ãƒ¬ãƒãƒ¼ãƒˆã®å‰ç·¨ã§ã¯ã€Java SE/EE/MEãã‚Œãžã‚Œã®ç¾çŠ¶ã¨ä»Šå¾Œã®å‹•å‘ã«ç„¦ç‚¹ã‚’å½“ã¦ã¦ç´¹ä»‹ã—ãŸã€‚å¾Œç·¨ã¯ã€Java SE/JDKã«ã¤ã„ã¦ã€ã€ŒProject Lambdaã€ã€ŒProject Jigsawã€ã€ãã—ã¦æ–°ã—ã„JavaScriptã‚¨ãƒ³ã‚¸ãƒ³ã§ã‚ã‚‹ã€ŒNashornã€ã«é–¢ã™ã‚‹ã‚»ãƒƒã‚·ãƒ§ãƒ³ã®æ§˜åã‚’ãƒ¬ãƒãƒ¼ãƒˆã™ã‚‹ã€‚ ã€ŒProject Lambdaã€ã®
poad1010 2012/04/21
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Javaç·ç§°åž‹ãƒ¡ãƒ¢(Hishidama's Java Generics Memo)
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poad1010 2011/08/07
JDK

type

memo

generics

javadoc

template

java

programming
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poad1010 2011/03/26
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poad1010 2011/03/26
JRuby

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ruby

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poad1010 2011/03/26
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poad1010 2011/03/26
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poad1010 2011/01/27
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File lockFile = new File("file.lock"); int retryCount = 30; // timeout = 3sec while (! lockFile.createNewFile()) { if ((retryCount--) == 0) { throw new LockFailedException("give up!"); } Thread.sleep(100); } try { // ãƒ•ã‚¡ã‚¤ãƒ«ãƒãƒƒã‚¯ã§ä¿è·ã•ã‚ŒãŸå‡¦ç† ... } finally { lockFile.delete(); } ãƒžã‚¸ãƒƒã‚¯ãƒŠãƒ³ãƒãƒ¼ã‚’ä½¿ã£ã¦ã„ãŸã‚Šå‰¯ä½œç”¨ã®ã‚ã‚‹å¼ã‚’æ¡ä»¶å¼ã«ä½¿ã£ã¦ã„ãŸã‚Šã¨ã€ æ°—ã«ãªã‚‹ã¨ã“ã‚ã¯ã„ã‚ã„ã‚ã‚ã‚‹ã‹ã‚‚çŸ¥ã‚Œã¾ã›ã‚“ãŒã€ã“ã®ã‚³ãƒ¼ãƒ‰ã®ä¸€ç•ªã®å•é¡Œã¯ "File.createNewFile() ã«é ¼ã£ãŸãƒãƒƒã‚¯æ©Ÿæ§‹ã«ãªã£ã¦ã„ã‚‹" ã“ã¨ã§ã™ã€‚ã©ã†ã„ã†ã“ã¨ã‹ç°¡å˜ã«èª¬æ˜Žã—ã¦
poad1010 2011/01/24
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poad1010 2011/01/18
JDK

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poad1010 2010/12/26
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poad1010 2010/11/30
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