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作æˆã™ã‚‹ãƒ‘ッケージã«ã¤ã„㦠†Debian ã§ã‚¯ãƒã‚¹ã‚³ãƒ³ãƒ‘イルを行ã†ãŸã‚ã«å¿…è¦ãª binutils, libc, gcc ã®ãƒ‘ッケージを〠DebianCrossCompilerHowto ã®ãƒšãƒ¼ã‚¸ã®èª¬æ˜Žã«å¾“ã£ã¦ä½œæˆã™ã‚‹ã€‚ ã“ã“ã§ã¯ã€çŽ„ç®±ã§å‹•ãプãƒã‚°ãƒ©ãƒ ã‚’ PC 上ã§ã‚³ãƒ³ãƒ‘イルã™ã‚‹ã“ã¨ã‚’目的ã«ã€ ホスト i386 ターゲット PowerPC ã¨ã„ã†çµ„ã¿åˆã‚ã›ã‚’対象ã¨ã—ã¦èª¬æ˜Žã™ã‚‹ã€‚ â–² APT ã®è¨å®š †/etc/apt/sources.list ã®ä»¥ä¸‹ã®ã‚ˆã†ãª deb-src ã®è¡Œã®ã‚³ãƒ¡ãƒ³ãƒˆã‚’外ã™ã€‚ #deb-src http://…/ stable main contrib non-free パッケージã®ãƒªã‚¹ãƒˆã‚’更新。 # aptitude update â–² 開発環境ã®ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ« †binutils 㨠gcc ã®ãƒ“ルドã«å¿…è¦ãªãƒ‘ッケージをインストール *1。 # apt-get
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shuJIT - Java Just-in-Time Compiler for x86 processors last-modified: May 30, 2017 [Japanese] [English] http://www.shudo.net/jit/index-j.html x86 プãƒã‚»ãƒƒã‚µãŠã‚ˆã³ Sun ã® Classic VM (JDK, Java 2 SE, JRE) 用㮠JavaTM Just-in-Time コンパイラã§ã™ã€‚ FreeBSD 㨠Linuxã€NetBSD ã§å‹•ä½œã—ã¾ã™ã€‚ What's New 2017/5/30 0.8.1 をリリースã—ã¾ã—ãŸã€‚ æ–‡å—エンコーディングを UTF-8 ã«å¤‰æ›´ã—ãŸã€‚ ソースコードを GitHub ã«è¼‰ã›ãŸã€‚ 2005/8/8 0.8.0 をリリースã—ã¾ã—ãŸã€‚ GCC 4.0.1 ã§ã‚³ãƒ³ãƒ‘イルã§ãるよã†ã«ã—ãŸã€‚ Win32,
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Javaã§ã¯Classã¯ClassLoaderã«èªã¿è¾¼ã¾ã‚Œã¾ã™ã€‚ã“ã‚Œã¯ã»ã¨ã‚“ã©ã®äººãŒçŸ¥ã£ã¦ã„ã‚‹ã¨æ€ã„ã¾ã™ã€‚AOPを使ã†ã¨ãã®ã‚¨ãƒ³ãƒãƒ³ã‚¹ã•ã‚ŒãŸã‚¯ãƒ©ã‚¹ã‚‚åŒæ§˜ã«ClassLoaderã«èªã¿è¾¼ã¾ã‚Œã¾ã™ã€‚ ã“れらã®æƒ…å ±ã¯ã€ãƒ‘ーマãƒãƒ³ãƒˆé ˜åŸŸã«æ ¼ç´ã•ã‚Œã¾ã™ãŒã€ClassLoaderãŒGCã•ã‚Œã‚‹ã¨è§£æ”¾ã•ã‚Œã¾ã™ã€‚ Seasar2ã®HOT reloadingã§ã¯ã€ãƒªã‚¯ã‚¨ã‚¹ãƒˆã®åº¦ã«ClassLoaderを作ã£ã¦ã€ãã“ã«Classã‚’ãƒãƒ¼ãƒ‰ã—ã€ãã®ClassLoaderã¯ã€ãƒªã‚¯ã‚¨ã‚¹ãƒˆãŒçµ‚ã‚ã£ãŸã‚‰ç ´æ£„ã—ã¦ã„ã‚‹ã®ã§ã€Classã®æƒ…å ±ã¯ã€ãƒªã‚¯ã‚¨ã‚¹ãƒˆã”ã¨ã«ç ´æ£„ã•ã‚Œã¦ã„ã¾ã™ã€‚ HOT relodingã«ã‚ˆã£ã¦ã€ãƒ‘ーマãƒãƒ³ãƒˆé ˜åŸŸãŒä½¿ã„ã¤ãã•ã‚Œã‚‹ã“ã¨ã¯ã‚ã‚Šã¾ã›ã‚“。 ã•ã‚‰ã£ã¨æ›¸ãã¾ã—ãŸãŒã€ãã¡ã‚“ã¨ClassLoaderã‚’ç ´æ£„ã™ã‚‹ã®ã¯ã€ã‹ãªã‚Šå¤§å¤‰ã§ã™ã€‚リフレクションã®æƒ…å ±ãŒã‚ャッシュã•ã‚Œã¦ã„ã‚‹ã¨ãã‚Œã ã‘ã§ç ´æ£„ã•ã‚Œãªããªã£ã¦ã—ã¾ã†ã‹ã‚‰
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Javaã®ãƒ¡ã‚½ãƒƒãƒ‰ã¨ã—ã¦å®Ÿè£…ã•ã‚ŒãŸã‚¿ã‚¹ã‚¯ãŒã‚ã‚Šã€ãã®ã‚¿ã‚¹ã‚¯ã‚’定期的（一定間隔）ã«å®Ÿè¡Œã—ãŸã„å ´åˆã¯ã€java.util.TimerTaskクラスã¨java.util.Timerクラスを使用ã™ã‚‹ã¨ä¾¿åˆ©ã§ã™ã€‚ã“れらã®ã‚¯ãƒ©ã‚¹ã®åˆ©ç”¨æ–¹æ³•ã¯ã€ä»¥ä¸‹ã®ã‚ˆã†ã«ãªã‚Šã¾ã™ã€‚ java.util.TimerTaskを継承ã—ãŸã‚¯ãƒ©ã‚¹ï¼ˆä¾‹ãˆã°Task1）を作æˆã—ã€ã‚¿ã‚¹ã‚¯ã¨ã—ã¦å®Ÿè¡Œã—ãŸã„処ç†ã‚’runメソッドã¨ã—ã¦å®Ÿè£…ã™ã‚‹ java.util.Timerクラスã®ã‚ªãƒ–ジェクトを作æˆã—ã€Task1クラスã®ã‚ªãƒ–ジェクトã¨ã€å®Ÿè¡Œé–‹å§‹æ™‚刻や実行間隔をscheduleメソッドã®å¼•æ•°ã¨ã—ã¦æ¸¡ã™ ã“れらã®å‡¦ç†ã«ã‚ˆã‚Šã€Task1クラスã®runメソッドãŒå®šæœŸçš„ã«å®Ÿè¡Œã•ã‚Œã¾ã™ã€‚ãã®éš›ã€å¿…ãšå‰å›žã®ã‚¿ã‚¹ã‚¯ã®å‡¦ç†ãŒçµ‚了ã—ã¦ã‹ã‚‰ã€æ¬¡ã®ã‚¿ã‚¹ã‚¯ãŒå®Ÿè¡Œã•ã‚Œã¾ã™ã€‚タスク処ç†ã‚’ä¸æ–ã™ã‚‹å ´åˆã¯ã€java.util.Timer#cancelメソッドを呼ã³å‡ºã—ã¾ã™ã€‚
ç·ã¾ã¨ã‚：Javaã®å°†æ¥çš„ãªå¾Œç¶™è€…ã¨ã—ã¦ã® Scala
原文(投稿日：2009/7/9)ã¸ã®ãƒªãƒ³ã‚¯ ScalaãŒæœ€è¿‘，将æ¥ã®Java 後継者ã®æœ‰åŠ›å€™è£œã¨ã—ã¦æ³¨ç›®ã‚’集ã‚ã¦ã„る。Java ã®å‰µä½œè€…ã§ã‚ã‚‹ James Gosling æ°ã‚„JRuby ã®ä¸»è¦é–‹ç™ºè€…ã§ã‚ã‚‹ Charles Nutteræ°ã«ç¶šã„ã¦ï¼ŒGroovy ã®å‰µä½œè€…ã§ã‚ã‚‹James Strachanæ°ã‚‚Scalaã¸ã®è³›æ„を表明ã—ã¦ã„る。 æ°ã¯Java ã®å¥½ã¾ã—ããªã„点ã«ã¤ã„ã¦ï¼Œæ¬¡ã®ã‚ˆã†ã«èªžã£ã¦ã„る。 Javaã¯ã¨ã‚“ã§ã‚‚ãªã複雑ãªè¨€èªžã§ã™(仕様書ã¯600ページもã‚ã‚Šã¾ã™ã—，Javaã®generics を本当ã«ç†è§£ã§ãã¦ã„る人ã¯ã„ã‚‹ã®ã§ã—ょã†ã‹ï¼Ÿ)。オートボクシング(ã«éš ã•ã‚ŒãŸNullPointerException)，基本型，コレクションã§ã¯ãªã„時代é…ã‚Œã®é…列，文å—列/テã‚スト/ãƒãƒƒãƒ•ã‚¡/コレクション/é…列ã«å¯¾ã™ã‚‹ãƒãƒªãƒ¢ãƒ¼ãƒ•ã‚£ã‚ºãƒ ã®å…¨èˆ¬çš„æ¬ å¦‚ï¼Œãƒ‡ãƒ¼ã‚¿æ§‹é€ ä½“ã‚„bean プãƒãƒ‘ティを扱ã†ã¨ã
MacOS Xã§ä½¿ç”¨ã™ã‚‹Javaã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã®åˆ‡æ›¿ - kurusaki note
自分ã®MacBook Proã¯MacOS X 10.5.6ã€Javaã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã‚’何もè¨å®šã—ãªã„状態ã§ã¯ 下記ã®ã‚ˆã†ã«1.5ãŒä½¿ã‚ã‚Œã¦ã„る。 Macintosh:~ kuru$ java -version java version "1.5.0_16" Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_16-b06-284) Java HotSpot(TM) Client VM (build 1.5.0_16-133, mixed mode, sharing) ã“れをã€æ¨™æº–ã§1.6ãŒä½¿ã‚れるよã†ã«åˆ‡ã‚Šæ›¿ãˆãŸã„å ´åˆã¯ã€ /Applications/Utilities/Java/Java Preferences.appã‚’èµ·å‹•ã—è¨å®šã™ã‚‹ã€‚ Java Preferences.appã®ç”»é¢ Java アプリケーションã®ãƒãƒ¼ã‚¸ãƒ§
Perl Tips | Java ã§ã€ãƒ©ãƒ³ãƒ€ãƒ ãªæ–‡å—列を生æˆã™ã‚‹æ–¹æ³•
SecureRandom クラスを使ã†ã€‚以下ã¯ã€16 ãƒã‚¤ãƒˆã®ãƒ©ãƒ³ãƒ€ãƒ ãªãƒã‚¤ãƒˆåˆ—を作る例。 import java.security.*; ... public final static String RANDOM_ALGORITHM = "SHA1PRNG"; public final static int   RANDOM_LENGTH   = 16; ... public byte[] getRandom() { try { SecureRandom random = SecureRandom.getInstance(RANDOM_ALGORITHM); byte seed[]        = random.generateSeed(RANDOM_LENGTH); byte b[]           = new byte[RANDOM_LENGTH]; random.se
Piggy Bank Architecture - SIMILE
The Piggy Bank extension to the Firefox browser consists primarily of 3 parts: Chrome additions to the browser, including menu commands, toolbars, etc., written in XUL and Javascript; Back-end Java code that manages the collected “pure†information in databases and serves it up through an HTTP interface. XPCOM components written in Javascript that bridge the chrome part and the Java part. We are i
Java Firefox Extension - SIMILE
A Firefox 0.9 or 1.x extension that demonstrates how you can use Java inside a Firefox extension. We have used this technique in our Piggy Bank extension. This extension distills the technique to a skeleton so that you can more easily comprehend. This is intended for Firefox 0.9 or 1.x extension developers only. Get the Code and Build It You can browse the code online or you can follow these steps
HowTos/JavaOnCentOS
The previous method of installing Java on CentOS is deprecated. If you are sure that the versions of Java that are provided by the distribution are not useful for you, please follow these instructions to install Oracle's Java Runtime Environment. The same instructions work for the JDK, just use the JDK instead of the JRE package.
FreeBSD portsã®jdk16をインストールã™ã‚‹æ–¹æ³•
FreeBSDã«portsã‹ã‚‰java(jdk16)をインストールã—ã¾ã—ãŸã€‚途ä¸ã§ã€msgfmtコマンドã®å•é¡Œã«ã‚ˆã‚Šã€makeãŒã¨ã¾ã£ã¦ã—ã¾ã£ãŸã‚Šã—ã¾ã—ãŸãŒã€ã‚¢ãƒ‰ãƒ›ãƒƒã‚¯ã«å¯¾å¿œã™ã‚‹ã“ã¨ã§ã€ã©ã†ã«ã‹ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã™ã‚‹ã“ã¨ãŒã§ãã¾ã—ãŸã€‚ portsã‹ã‚‰ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—よã†ã¨ã—ã¦ã¿ã¾ã™ã€‚ % cd /usr/ports/java/jdk16 % sudo make Password: ===> jdk-1.6.0.3p3 : Due to licensing restrictions, certain files must be fetched manually. Please open http://download.java.net/jdk6/6u3/promoted/b05/index.html in a web browser. Download the Update 3 Source, jd
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JDK 22 Documentation - Home
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