VisualVM: Home
VisualVM is a visual tool integrating commandline JDK tools and lightweight profiling capabilities. Designed for both development and production time use. April 24, 2024: VisualVM for VS Code Integration Extension Released The VisualVM for VS Code extension has been released. It integrates the VisualVM tool with Visual Studio Code. More information is available at http://visualvm.github.io/idesupp
9. ChoiceFormatï¼MessageFormat (2)
9.2. MessageFormat MessageFormatã¯è¤‡æ•°ã®ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’連çµã—ã¦ï¼‘ã¤ã®ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’連çµã™ã‚‹ã‚¯ãƒ©ã‚¹ã§ã™ã€‚連çµã™ã‚‹éš›ã€ä»–ã®Formatクラスを使用ã—ã¦ãƒã‚±ãƒ¼ãƒ«ã‚„特定ã®ãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆã«å¾“ã£ãŸãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã‚’作æˆã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ã¾ãšã‚‚ã£ã¨ã‚‚ç°¡å˜ãªä½¿ã„æ–¹ã«ã¤ã„ã¦èª¬æ˜Žã—ã¾ã™ã€‚ package sample; import java.text.MessageFormat; import java.util.Date; public class FormatTest { public static void main(String[] args) { MessageFormat format = new MessageFormat("ãŸã ã„ã¾{0}。天気ã¯{1}ã§ã™ã€‚"); Object[] parameters = {new Date(System.currentTimeMil
Netty: Home
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty is an NIO client server framework which enables quick and easy development of network applications such as protocol servers and clients. It greatly simplifies and streamlines network programming such as TCP and UDP socket server. 'Quick and ea
Quarkusリリース - 赤帽エンジニアブãƒã‚°
Red Hatã§OpenShiftã®ã‚µãƒãƒ¼ãƒˆã‚’ã—ã¦ã„ã‚‹id:nekopã§ã™ã€‚3å¹´å‰ãらã„ã¾ã§JBoss Middlewareを主ã«æ‹…当ã—ã¦ã„ãŸã®ã§ä¹…ã—ã¶ã‚Šãªã‚µãƒ¼ãƒã‚µã‚¤ãƒ‰Javaãƒã‚¿ã¨ãªã‚‹ã®ã§ã™ãŒã€Quarkusã¨ã„ã†Kubernetesãƒã‚¤ãƒ†ã‚£ãƒ–Javaアプリケーションフレームワークをリリースã—ã¾ã—ãŸã€‚ quarkus.io èªã¿æ–¹ã¯ã€Œãã‰ãƒ¼ã‹ã™ã€ã§ã™ã€‚ã‚ャッãƒã‚³ãƒ”ーãŒSupersonic Subatomic Javaã¨ãªã£ã¦ã„るよã†ã«ã€é«˜é€Ÿè»½é‡ã‚³ãƒ³ãƒ‘クトãªãƒ©ãƒ³ã‚¿ã‚¤ãƒ ãŒã‚¦ãƒªã§ã™ã€‚ã¾ãŸã€ã‚³ãƒ³ãƒ†ãƒŠåŒ–やクラスã®Hot reloading対応ãªã©ã®é–‹ç™ºå®¹æ˜“性も備ãˆã¦ã„ã¾ã™ã€‚ ç¾åœ¨ã§ã¯Java EEã®ã‚¢ãƒ—リケーションサーãƒä¸Šã¸ã®ãƒ‘ッケージ化ã•ã‚ŒãŸã‚¢ãƒ—リケーションã®ãƒ‡ãƒ—ãƒã‚¤ã€Spring Bootãªã©ã«ä»£è¡¨ã•ã‚Œã‚‹fat jarを利用ã—ãŸã‚ˆã‚Šãƒ¢ãƒ€ãƒ³ãªãƒ‡ãƒ—ãƒã‚¤ã®2ã¤ã®ãƒ‡ãƒ—ãƒã‚¤å½¢æ…‹ãŒåºƒã利用ã•ã‚Œã¦ã„ã¾ã™ãŒã€
Quarkus入門 - n-agetsumaã®æ—¥è¨˜
GlassFish Users Group Japan 勉強会 2019 Springã§Quarkusã«ã¤ã„ã¦ç´¹ä»‹ã—ã¾ã—ãŸã€‚話ãã†ã¨æ€ã£ã¦ã„ãŸã‘ã‚Œã©ã‚‚スライドã«å…¥ã‚‰ãªã‹ã£ãŸã“ã¨ã‚’ブãƒã‚°ã§è£œè¶³ã—ã¦ã¿ã¾ã™ã€‚ Quarkusã¨ã¯ä½•ã‹ ã¨ã«ã‹ãèµ·å‹•ãŒé«˜é€Ÿãª Java EE / MicroProfile ベースã®APIã§ã‚³ãƒ¼ãƒ‰ãŒæ›¸ã‘るフレームワークã§ã™ã€‚スライドä¸ã§ã‚‚言åŠã—ã¦ã„ã¾ã™ãŒã€GraalVMã®native-imageコマンドã«ã‚ˆã£ã¦ãƒã‚¤ãƒ†ã‚£ãƒ–コンパイルã™ã‚‹ã¨100ミリを切るスピードã§JAX-RS/CDI/JPAã§æ§‹æˆã•ã‚Œã‚‹CRUDアプリケーションãŒèµ·å‹•ã—ã¾ã™ã€‚ Javaã¯èµ·å‹•ãŒé…ã„ã€Goã®ã‚ˆã†ãªã‚·ãƒ³ã‚°ãƒ«ãƒã‚¤ãƒŠãƒªã«ã‚ˆã‚‹èµ·å‹•ã®æ–¹ãŒä¾¿åˆ©ã§Javaã¯æ‰‹é–“ãŒæŽ›ã‹ã‚‹ã¨è¨€ã‚れる課題を解決ã—ã¦ã„ã¾ã™ã€‚ 続ãã«ã¤ã„ã¦ã¯ã‚¹ãƒ©ã‚¤ãƒ‰ã‚’å‚ç…§ã—ã¦ãã ã•ã„。ã“ã“ã‹ã‚‰ã¯ã€ã‚¹ãƒ©ã‚¤ãƒ‰ã«å…¥ã‚‰ãªã‹ã£ãŸå†…容やã€å½“日話ãã†ã¨æ€ã£ã¦ã„ãŸ
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JEP 326: Raw String Literalsをテã‚トーã«è¨³ã—㟠- kagamihogeã®æ—¥è¨˜
http://openjdk.java.net/jeps/326 JEP 326: Raw String Literals Owner Jim Laskey Created 2018/01/23 15:40 Updated 2018/04/03 18:29 Type Feature Status Candidate Component specification / language Scope SE Discussion amber dash dev at openjdk dot java dot net Effort M Duration M Priority 3 Reviewed by Alex Buckley Endorsed by Brian Goetz Release tbd_major Issue 8196004 Summary Java言語ã«raw string liter
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è¦æ—¨ ç°¡å˜ãªSpringBatchを作æˆã—ã€Webリクエストã‹ã‚‰ãƒãƒƒãƒèµ·å‹•ã™ã‚‹ã€‚ 環境 Java SE 8 (jdk-8u181) Spring Boot 2.1.0 è©³ç´°æ‰‹é † プãƒã‚¸ã‚§ã‚¯ãƒˆä½œæˆ SpringBatchを使用ã™ã‚‹ãŸã‚ã€ä¾å˜é–¢ä¿‚ã«spring-boot-starter-batchã‚’åŠ ãˆã‚‹ã€‚ ã¾ãŸã€Job管ç†ã«DBを使用ã™ã‚‹ãŸã‚ã€é©å½“ãªJDBCã‚‚åŠ ãˆã‚‹ã€‚ <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-batch</artifactId> </dependency> <dependency> <groupId>org.postgresql</groupId> <artifactId>postgresql</artifactId> <scope>run
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Auto import | IntelliJÂ IDEA
Auto import If you're using a class, a static method, or a static field that you haven't imported yet, the IDE shows you a tooltip prompting you to add a missing import statement so that you don't have to add it manually. Press Alt+Enter to accept the suggestion. If there's more than one possible source of import, pressing Alt+Enter will open the list of suggestions. To change the background color
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æ¦‚è¦ ãƒªã‚½ãƒ¼ã‚¹ã€åå‰ã€ã‚³ãƒ³ãƒ†ã‚スト システム・リソース システム・リソース以外 リソースå java.lang.Classã®ãƒ¡ã‚½ãƒƒãƒ‰ã®ä½¿ç”¨ java.lang.ClassLoaderã®ãƒ¡ã‚½ãƒƒãƒ‰ã®ä½¿ç”¨ ã‚»ã‚ュリティ 例 リファレンス æ¦‚è¦ ãƒªã‚½ãƒ¼ã‚¹ã¨ã¯ã€ãƒ—ãƒã‚°ãƒ©ãƒ ã®ã‚³ãƒ¼ãƒ‰ã®ä½ç½®ã¨ã¯ç„¡é–¢ä¿‚ãªæ–¹æ³•ã§ãƒ—ãƒã‚°ãƒ©ãƒ ãŒã‚¢ã‚¯ã‚»ã‚¹ã™ã‚‹å¿…è¦ã®ã‚るデータ(イメージã€ã‚ªãƒ¼ãƒ‡ã‚£ã‚ªã€ãƒ†ã‚ストãªã©)ã§ã™ã€‚Javaプãƒã‚°ãƒ©ãƒ ã§ã¯ã€ãƒªã‚½ãƒ¼ã‚¹ã¸ã®ã‚¢ã‚¯ã‚»ã‚¹ã«2ã¤ã®ãƒ¡ã‚«ãƒ‹ã‚ºãƒ を使用ã§ãã¾ã™ã€‚アプレットã®å ´åˆã¯ã€Applet.getCodeBase()を使用ã—ã¦ã‚¢ãƒ—レット・コードã®ãƒ™ãƒ¼ã‚¹URLã‚’å–å¾—ã—ãŸå¾Œã€ãã®ãƒ™ãƒ¼ã‚¹URLを相対パスã§å±•é–‹ã—ã€Applet.getAudioClip(url)を使用ã™ã‚‹ãªã©ã—ã¦å¿…è¦ãªãƒªã‚½ãƒ¼ã‚¹ã‚’ãƒãƒ¼ãƒ‰ã—ã¾ã™ã€‚アプリケーションã®å ´åˆã¯ã€System.getProperty("user.home")ã‚„Sys
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