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CRaCã‚’ç”¨ã„ãŸJavaã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®èµ·å‹•é«˜é€ŸåŒ– - Candy, Vitamin or Painkiller
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ayato0211 2023/12/09
Java
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ayato0211 2016/11/22
IoC

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ayato0211 2014/01/22
Java
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ayato0211 2014/01/22
Java
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ayato0211 2014/01/10
Java
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ayato0211 2013/12/26
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ayato0211 2013/12/13
Java
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JAX-RSã¨ã‹ã®è©± â€” è£ç´™
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ayato0211 2013/11/22
java

Java EE

JAX-RS
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IBM Developer
IBM Developer is your one-stop location for getting hands-on training and learning in-demand skills on relevant techno logies such as generative AI, data science, AI, and open source.
ayato0211 2013/08/07
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ayato0211 2013/03/23
Java
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JEP 118: Access to Parameter Names at Runtime http://download.java.net/jdk8/docs/api/java/lang/reflect/Parameter.html#getName() Java8ã§å®Ÿè¡Œæ™‚ã« Parameter#getName ã§ãƒ¡ã‚½ãƒƒãƒ‰ã®å¼•æ•°ã®åå‰ãŒã¨ã‚Œã‚‹æ„Ÿã˜ã§ã™ã€‚ ã‚„ã£ã¦ã¿ã‚‹ ã“ã‚“ãªã‚¯ãƒ©ã‚¹ã®ãƒ¼ public class Hoge { public void method1(String hoge) { } public void method2(Object fuga, Object piyo) { } } ãƒ¡ã‚½ãƒƒãƒ‰åã¨å¼•æ•°ã‚’å¼•ã£å¼µã‚Šå‡ºã™ã¨ã€ã“ã†å‡ºã‚‹ã€‚ method1[ java.lang.String hoge] method2[ java.lang.Object fuga, java.lang.O
ayato0211 2013/03/10
Java

java8
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ayato0211 2013/02/15
Java

gc

jvm
ãƒªãƒ³ã‚¯
Oracleã¯Java 6ã®ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£ã‚¢ãƒƒãƒ—ãƒ‡ãƒ¼ãƒˆã®é…å¸ƒã‚’2æœˆã§åœæ¢ã™ã‚‹
Spring Bootã«ã‚ˆã‚‹APIãƒãƒƒã‚¯ã‚¨ãƒ³ãƒ‰æ§‹ç¯‰å®Ÿè·µã‚¬ã‚¤ãƒ‰ ç¬¬2ç‰ˆ ä½•åƒäººã‚‚ã®é–‹ç™ºè€…ãŒã€InfoQã®ãƒŸãƒ‹ãƒ–ãƒƒã‚¯ã€ŒPractical Guide to Building an API Back End with Spring Bootã€ã‹ã‚‰ã€Spring Bootã‚’ä½¿ã£ãŸREST APIæ§‹ç¯‰ã®åŸºç¤Žã‚’å¦ã‚“ã ã€‚ã“ã®æœ¬ã§ã¯ã€å‡ºç‰ˆæ™‚ã«æ–°ã—ããƒªãƒªãƒ¼ã‚¹ã•ã‚ŒãŸãƒãƒ¼ã‚¸ãƒ§ãƒ³ã§ã‚ã‚‹ Spring Boot 2 ã‚’ä½¿ç”¨ã—ã¦ã„ã‚‹ã€‚ã—ã‹ã—ã€Spring Boot3ãŒæœ€è¿‘ãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã€é‡è¦ãªå¤‰...
ayato0211 2013/02/15
Java

Oracle
ãƒªãƒ³ã‚¯
Java 8 ã§ Scala ã®ã‚ˆã†ãªä½•ã‹ã‚’ä½¿ã† - seratch's weblog in Japanese
Java 8 ã§ã¯ JSR 335: Lambda Expressions ãŒå–ã‚Šå…¥ã‚Œã‚‰ã‚Œã¾ã™ã€‚ ã“ã‚Œã‚’ä½¿ã†ã¨ Pure Java ã§ã‚ã‚ŠãªãŒã‚‰ã€Œã©ã†è¦‹ã¦ã‚‚ Scalaã€ã¨ã„ã†ã‚³ãƒ¼ãƒ‰ãŒæ›¸ã‘ã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã™ã€‚ ä¸»ã«ç§ãŒãƒ¡ãƒ³ãƒ†ãƒŠãƒ³ã‚¹ã—ã¦ã„ã‚‹ ScalaFlavor4J ã¨ã„ã†ãƒ©ã‚¤ãƒ–ãƒ©ãƒªãŒã‚ã‚Šã¾ã™ã€‚ https://github.com/m3dev/scalaflavor4j Java 7 ã¾ã§ã¯ã“ã‚“ãªæ„Ÿã˜ã§ä½¿ã†å¿…è¦ãŒã‚ã‚Šã¾ã—ãŸã€‚ Seq.apply(1, 2, 3, 4, 5).filter(new F1<Integer, Boolean>() { public Boolean apply(Integer i) { return i > 2; } }); // -> Seq.apply(3, 4, 5) ã—ã‹ã—ã€Java 8 ã§ã¯ã“ã‚“ãªã«ã‚·ãƒ³ãƒ—ãƒ«ã«æ›¸ã‘ã¦ã—ã¾ã„ã¾ã™ã€‚ Seq.apply(1,
ayato0211 2013/02/15
scala

Java
ãƒªãƒ³ã‚¯
ä»Šæ—¥ã‹ã‚‰å§‹ã‚ã‚‹Java8 - Taste of Tech Topics
ã“ã‚“ã«ã¡ã¯ id:cero-t ã§ã™ã€‚ ã€Œãªã‚“ã¨ã‚„ã‚‰ã¯é¢¨é‚ªã‚’ã²ã‹ãªã„ã€ã¨è¨€ã‚ã‚Œã¦ã„ã‚‹ã¨ã“ã‚ å…ˆæ—¥ã€ã‚¤ãƒ³ãƒ•ãƒ«ã‚¨ãƒ³ã‚¶ã«æŽ›ã‹ã£ã¦ã—ã¾ã„ã¾ã—ã¦ã€‚ é‡ãç€ï¼‹å¤šæ®µå¸ƒå›£ï¼‹é›»æ°—æ¯›å¸ƒï¼’æžšã®ã‚³ãƒ³ãƒœã§ä¸€æ°—ã«æ‚ªå¯’ã‚’å¹ãé£›ã°ã—ã€ ä¸€æ—¥ã§ç†±ã‚’ä¸‹ã’ãŸã‚‚ã®ã®ã€æ„ŸæŸ“äºˆé˜²ã®ãŸã‚ã«å‡ºç¤¾ã‚’æŽ§ãˆãŸãŸã‚ã«æ™‚é–“ã§ãã€ ã¡ã‚‡ã£ã¨Java8ãªã©ã¨æˆ¯ã‚Œã¦ã„ã¾ã—ãŸã€‚ ãã†ã€ä»Šæ—¥ã¯Java8ã®è©±é¡Œã§ã™ã€‚ ä»Šå¹´ã®ç§‹ã«æ£å¼ãƒªãƒªãƒ¼ã‚¹ãŒäºˆå®šã•ã‚Œã¦ã„ã‚‹JavaSE8ã§ã™ãŒã€ OpenJDKã®ã‚µã‚¤ãƒˆã§ã¯ã€æ—¢ã«Early Accessç‰ˆã‚’å…¥æ‰‹ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ JDK8 : http://openjdk.java.net/projects/jdk8/ ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ : http://jdk8.java.net/download.html 1/31ã«ã€ãƒžã‚¤ãƒ«ã‚¹ãƒˆãƒ¼ãƒ³6ãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚Œ Feature Complete ã¨ãªã‚Šã¾ã—ãŸã€‚ åå‰ã‹ã‚‰ã™ã‚‹ã¨ å…¨æ©Ÿèƒ½é–‹ç™º
ayato0211 2013/02/07
lambda

Java

java8
ãƒªãƒ³ã‚¯
enumã‚ã‚Œã“ã‚Œ - æ—¥ã€…å¸¸ã€…
EffectiveJava èªæ›¸ä¼šã§æ„å¤–ã¨enumãƒã‚¿ã§éœ€è¦ãŒã‚ã‚‹æ°—ãŒã—ãŸã®ã§ã€ã¡ã‚‡ã£ã¨æ›¸ã„ã¦ã¿ã¾ã™ã€‚å†…å®¹çš„ã«ç›®æ–°ã—ã„ã‚‚ã®ã¯ç„¡ã„ã¯ãšã®äº‹ã‚’æ›¸ãã¾ã™ã®ã§ã€ç†è§£ã•ã‚Œã¦ã„ã‚‹æ–¹ã¯ãƒ„ãƒƒã‚³ãƒŸæ‰€æŽ¢ã—ã§ã‚‚ã—ã¦ãã ã•ã„ã€‚ èªã¿æ–¹ enumã¯ enumerate ã‹ enumeration ãŒèªžæºã«ãªã£ã¦ã‚‹ã‚ã‘ã§ã€ç´ ç›´ã«ã„ã‘ã°ã€Œã‚¤ãƒ‹ãƒ¥ãƒ ã€ã«ãªã‚Šã¾ã™ã€‚ã‘ã‚Œã©å®Ÿéš›ã©ã†èªã¾ã‚Œã‚‹ã‹ã¯åˆ¥ã®è©±ã§ã™ã€‚æœ€ã‚‚å¤§äº‹ãªã®ã¯ä¼ã‚ã‚‹äº‹ãªã®ã§ã€ç§ã¯åŸºæœ¬ç›¸æ‰‹ãŒç™ºéŸ³ã—ãŸã‚‚ã®ã«åˆã‚ã›ã¾ã™ã€‚ã‚³ã‚¦ãƒ¢ãƒªã§ã™ã€‚ãã‚Œã¯ã„ã„ã€‚ å®Ÿç¾å ´ã§ã¯ã€Œã„ãƒ¼ãªã‚€ã€ã¨ç™ºéŸ³ã™ã‚‹ã“ã¨ãŒå¤šã„ã§ã™ã€‚ã‚¢ã‚¯ã‚»ãƒ³ãƒˆã®ä½ç½®ã¯åœ°åŸŸã§å¤‰ã‚ã‚‹ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ãŒã€æ—¥æœ¬ã§ã¯ã€Œã„ãƒ¼ãªã‚€ã€ã¨è¨€ã£ã¦ãŠã‘ã°é€šã˜ãªã„äº‹ã¯ãªã„ã¨æ€ã„ã¾ã™ã€‚ã€Œã„ã«ã‚…ãƒ¼ã‚€ã€ã¨ã‹ä¸‹æ‰‹ã«è¨€ã£ã¡ã‚ƒã†ã¨ã€Œã¯ï¼Ÿã€ã£ã¦é¡”ã•ã‚Œã‚‹å¯èƒ½æ€§ãŒéžå¸¸ã«é«˜ã„ã§ã™ã€‚è‹±èªžã®ã‚»ãƒƒã‚·ãƒ§ãƒ³ã®å‹•ç”»è¦‹ã¦ã€Œã„ï¼ˆãˆï¼‰ã«ã‚…ãƒ¼ã‚€ã€ã£ã¦è¨€ã†äº‹ã«ã—ãŸã®ã§ã™ãŒã€ã„ã–è¨€ãŠã†ã¨ã—ãŸã‚‰ã€Œã„ã«
ayato0211 2013/01/25
enum

Java
ãƒªãƒ³ã‚¯
JUnitã§ãƒ†ã‚¹ãƒˆåã®åˆ¶ç´„ã‚’å–ã£æ‰•ã† - æ—¥ã€…å¸¸ã€…
2020-06-11è¿½è¨˜ æœ¬ç¨¿ã®å¯¾è±¡ã¯JUnit4ã§ã™ã€‚JUnit5ã§åŒç‰ã®ã‚¢ãƒŽãƒ†ãƒ¼ã‚·ãƒ§ãƒ³`@DisplayName(value)` ãŒè¿½åŠ ã•ã‚Œã¦ã„ã‚‹ãŸã‚ã€ã“ã®ã‚ˆã†ãªå°ç´°å·¥ã¯å¿…è¦ã‚ã‚Šã¾ã›ã‚“ã€‚ ç™ºç«¯ã¯[twitter:@ayato_p]ã•ã‚“ã®ãƒ„ã‚¤ãƒ¼ãƒˆã§ã”ã–ã„ã¾ã™ã€‚ã€ŒJUnitã®ãƒ†ã‚¹ãƒˆãƒ¡ã‚½ãƒƒãƒ‰åã‚’æ—¥æœ¬èªžã§æ›¸ãã€ã®ã¯ãã‚Œã»ã©å¥‡ç•°ãªè©±ã§ã¯ã‚ã‚Šã¾ã›ã‚“ã€‚ ãƒ¡ã‚½ãƒƒãƒ‰åã‚’æ—¥æœ¬èªžã«ã™ã‚‹è©± - æ—¥ã€…å¸¸ã€… JUnitå®Ÿè·µå…¥é–€ã§ã‚‚ã€Œæ—¥æœ¬èªžã®ãƒ¡ã‚½ãƒƒãƒ‰åã‚’ä½¿ã†ãƒ¡ãƒªãƒƒãƒˆã€ã¨è¨€ã†ã‚³ãƒ©ãƒ ãŒã‚ã‚Šã€ã‚µãƒ³ãƒ—ãƒ«ã‚³ãƒ¼ãƒ‰ã®ãƒ†ã‚¹ãƒˆãƒ¡ã‚½ãƒƒãƒ‰åã¯å¹³ç„¶ã¨æ—¥æœ¬èªžã§æ›¸ã‹ã‚Œã¦ã„ã¾ã™ã€‚ [isbn:978-4774153773:detail] ã—ã‹ã—æ—¥æœ¬èªžãƒ¡ã‚½ãƒƒãƒ‰åãªã®ã§ã€å½“ç„¶ã®ã‚ˆã†ã«ãƒ¡ã‚½ãƒƒãƒ‰åã«ç”±æ¥ã™ã‚‹å•é¡ŒãŒå¹¾ã‚‰ã‹ã‚ã‚Šã¾ã™ã€‚ã‚ˆãè©°ã¾ã‚‹ã®ã¯ã€Œãã‚‚ãã‚‚ä½¿ãˆãªã„ã€ã§ã™ãŒã€ã“ã‚Œã¯VMå¼•æ•°ãªã©ã§è§£æ±ºå‡ºæ¥ã¾ã™ã€‚ JUnitã®ãƒ†ã‚¹ãƒˆãƒ¡ã‚½ãƒƒãƒ‰åã«æ—¥æœ¬èªžã‚’ä½¿ã£ãŸã¨ã
ayato0211 2013/01/24
"ç›´æŽ¥ã®å•é¡Œã¯ã€Œãƒ†ã‚¹ãƒˆãƒ¡ã‚½ãƒƒãƒ‰åã«æ—¥æœ¬èªžã‚’ä½¿ã†ã¨å¾®å¦™ãªåˆ¶ç´„ã®ã›ã„ã§æ€ã„é€šã‚Šè¨˜è¿°å‡ºæ¥ãªã„ã€ã§ã™ãŒã€åˆ¥ã«ã€Œãƒ†ã‚¹ãƒˆãƒ¡ã‚½ãƒƒãƒ‰åã«æ—¥æœ¬èªžã‚’ä½¿ã„ãŸã„ã€ã§ã¯ã‚ã‚Šã¾ã›ã‚“ã€‚"

junit

Java
ãƒªãƒ³ã‚¯
Javaã®ãƒ†ã‚¹ãƒˆã‚³ãƒ¼ãƒ‰ã‹ã‚‰ã¯ã˜ã‚ã‚‹Groovy #gadvent2012 - ã‚„ã•ã—ã„ãƒ‡ã‚¹ãƒžãƒ¼ãƒ
æœ¬ã‚¨ãƒ³ãƒˆãƒªãƒ¼ã¯ã€G* Advent Calendar 2012ã®24æ—¥ç›®ã®ã‚¨ãƒ³ãƒˆãƒªãƒ¼ã§ã™ã€‚å‰æ—¥ã¯ã€@tetsurokitaharaã•ã‚“ã®Groovyã«Processingã‚’ï¼ã§ã—ãŸã€‚ ä½•ã‚’ãƒã‚¿ã«æ›¸ã“ã†ã‹ãªã¨æ‚©ã‚“ã ã®ã§ã™ãŒã€æ€ã†ã»ã©G*ãªãƒã‚¿ã¯æŒã£ã¦ãŠã‚‰ãšã€JUnitãƒã‚¿ã¨ãªã‚Šã¾ã—ãŸã€‚å®Ÿã¯ã€æ›¸ç±ã€ŒJUnitå®Ÿè·µå…¥é–€ã€ã§ã‚‚Groovyã‚’æ´»ç”¨ã™ã‚‹ãƒˆãƒ”ãƒƒã‚¯ã‚’å…¥ã‚Œã‚‹äºˆå®šã ã£ãŸã®ã§ã™ãŒã€ç´™é¢ã®éƒ½åˆä¸Šã€å…¥ã‚Œã‚‹äº‹ãŒã§ãã¾ã›ã‚“ã§ã—ãŸ*1ã€‚ãã“ã§ã€å°‘ã—ã ã‘ã§ã™ãŒã€æœ¬ã‚¨ãƒ³ãƒˆãƒªãƒ¼ã§è£œè¶³ã—ãŸã„ãªã¨æ€ã„ã¾ã™ã€‚ ãƒ†ã‚¹ãƒˆã‚³ãƒ¼ãƒ‰ã§Groovyã‚’ä½¿ã† Groovyã¯ã€Javaã¨è¦ªå’Œæ€§ã®é«˜ã„ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã§ã™ã€‚ä¸Šå¸ã‚’èª¬å¾—ã™ã‚‹å ´åˆã¯ã€ŒGroovyã¯Javaã®æ‹¡å¼µãƒ©ã‚¤ãƒ–ãƒ©ãƒªã§ã™ï¼ˆï½·ï¾˜ï½¯ã€ã¨è¨€ã£ã¦ã‚‚è‰¯ã„ã§ã—ã‚‡ã†ã€‚æœ¬å½“ã¯é–‹ç™ºç’°å¢ƒã‚„ãƒ“ãƒ«ãƒ‰ãƒ„ãƒ¼ãƒ«ã®è¨å®šãªã©ã§ä¸€å·¥å¤«ã—ãªã‘ã‚Œã°åˆ©ç”¨ã§ãã¾ã›ã‚“ãŒã€ãã®è¾ºã¯è£ã§ã—ã‚Œã£ã¨ã‚„ã£ã¦ã—ã¾ãˆã°OKã§ã™ã€‚
ayato0211 2013/01/23
"ãƒ†ã‚¹ãƒˆã‚³ãƒ¼ãƒ‰ã‚’æ›¸ã„ã¦ãªã„äººã¯ã€ã¾ãšJUnitå®Ÿè·µå…¥é–€ã‚’ãŠè²·ã„æ±‚ã‚ãã ã•ã„"

groovy

java

junit
ãƒªãƒ³ã‚¯
Javaã‚¹ã‚¯ãƒ¼ãƒ«ã®å±é™º - The Joel on Software Translation Project
Joel Spolsky / é’æœ¨é– è¨³ 2005å¹´12æœˆ29æ—¥æœ¨æ›œ è¿‘é ƒã®è‹¥ã„è€…ã¨ããŸã‚‰ã€‚ å‹¤å‹‰ã¯ã„ã£ãŸã„ã©ã“ã¸è¡Œã£ã¦ã—ã¾ã£ãŸã‚“ã ? ã€Œè¿‘é ƒã®è‹¥ã„è€…ã€ã¯æˆ‘æ…¢ãŒãªã„ã¨ä¸å¹³ã‚’è¨€ã†ã‚ˆã†ã«ãªã£ãŸã®ã¯ã€ç§ã‚‚å¹´ã‚’å–ã£ãŸã¨ã„ã†ã“ã¨ãªã®ã‹ã‚‚ã—ã‚Œãªã„ã€‚ ãã‚Šã‚ƒæµã¾ã‚Œã¦ã‚‹ãã€‚ç§ã¯3ãƒ¶æœˆæ±šæ°´æµ„åŒ–æ§½ã®ä¸ã®èŒ¶è‰²ã„ç´™è¢‹ã«ä½ã‚“ã§ã„ãŸã‚ˆã€‚æœ6æ™‚ã«èµ·ãã¦ã€è¢‹ã‚’æŽƒé™¤ã—ã€å›ºããªã£ãŸãƒ‘ãƒ³ã®è€³ã‚’é£Ÿã¹ã€å·¥å ´ã¾ã§æ©ã„ã¦è¡Œãã¨ã€1æ—¥14æ™‚é–“ã€æ¯Žé€±æ¯Žé€±åƒãã¤ã¥ã‘ã€å®¶ã«å¸°ã‚‹ã¨è¦ªçˆ¶ã«ãƒ™ãƒ«ãƒˆã§ãŸãŸã‹ã‚Œã¦å¯åºŠã«ã¤ã„ã¦ã„ãŸã‚“ã ã€‚ â€”â€”ãƒ¢ãƒ³ãƒ†ã‚£ãƒ»ãƒ‘ã‚¤ã‚½ãƒ³ã®ç©ºé£›ã¶ã‚µãƒ¼ã‚«ã‚¹ 4äººã®ãƒ¨ãƒ¼ã‚¯ã‚·ãƒ£ãƒ¼äºº ç§ã¯è‹¥ã„é ƒã€ãƒ‘ãƒ³ãƒã‚«ãƒ¼ãƒ‰ã§ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’ä½œã‚‹æ–¹æ³•ã‚’å¦ã‚“ã ã€‚ãƒŸã‚¹ã‚’ã—ãŸã‚‰ã€ãã‚Œã‚’è¨‚æ£ã™ã‚‹ãŸã‚ã®ãƒãƒƒã‚¯ã‚¹ãƒšãƒ¼ã‚¹ã®ã‚ˆã†ãªè¿‘ä»£çš„ãªæ©Ÿèƒ½ã¯å˜åœ¨ã—ãªã‹ã£ãŸã€‚ã‚«ãƒ¼ãƒ‰ã‚’æ¨ã¦ã¦ã¯ã˜ã‚ã‹ã‚‰æ‰“ã¡ç›´ã™ã®ã ã€‚ ç§ã¯1991å¹´ã«ãƒ—ãƒã‚°ãƒ©ãƒžã®é¢æŽ¥ã‚’ã™ã‚‹ã‚ˆã†ã«ãªã£ãŸã€‚ã‚³ãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã®å•é¡Œã«ç”ãˆã‚‹
ayato0211 2013/01/04
Java

ãƒ—ãƒã‚°ãƒ©ãƒž

ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°

programming

Joel
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