[B! Java][Java 8] decoy2004ã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

decoy2004 id:decoy2004

Javaã¨Java 8ã«é–¢ã™ã‚‹decoy2004ã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (6)

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å®Ÿä¾‹ã§å¦ã¶GS Collections â€“ Part 2
ãã—ã¦ã€ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®ã‚³ãƒ³ãƒ†ãƒŠã‹ã‚‰ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–åž‹ã®ã‚³ãƒ³ãƒ†ãƒŠã«å¤‰æ›ã™ã‚‹æ–¹æ³•ã¨ã€ãƒ—ãƒªãƒŸãƒ†ã‚£ãƒ–åž‹ã®ã‚³ãƒ³ãƒ†ãƒŠã«å‚™ã‚ã£ã¦ã„ã‚‹APIã®æ´»ç”¨æ³•ã‚’ãŠè¦‹ã›ã—ã¾ã™ã€‚ã„ãã¤ã‹ã®å®Ÿä¾‹ã§ã¯ä¸‹å›³ã«ç¤ºã—ãŸã‚·ãƒ³ãƒ—ãƒ«ãªãƒ‰ãƒ¡ã‚¤ãƒ³ã‚’ä½¿ã£ã¦èª¬æ˜Žã—ã¾ã™ã€‚ ã‚µãƒ³ãƒ—ãƒ«ã‚³ãƒ¼ãƒ‰ã¯ãƒ¦ãƒ‹ãƒƒãƒˆãƒ†ã‚¹ãƒˆã¨ã—ã¦æ›¸ã‹ã‚Œã¦ãŠã‚Šã€å®Ÿè¡Œã«ã¯Java 8ãŒå¿…è¦ã§ã™ã€‚ [å›³ã‚’ã‚¯ãƒªãƒƒã‚¯ã—ã¦æ‹¡å¤§] æœ¬ç¨¿ã®ä¾‹ã‚’èªã¿çµ‚ã‚ã‚‹ã“ã‚ã«ã¯ã€GS Collectionsã§é–‹ç™ºã•ã‚ŒãŸè±Šå¯Œã§å®Œæˆã•ã‚ŒãŸAPIã‚’ã•ã‚‰ã«æŽ¢æ±‚ã—ãŸã„ã¨èˆˆå‘³ã‚’æŒã£ã¦ã„ãŸã ã‘ã‚‹ã‹ã¨æ€ã„ã¾ã™ã€‚ ä¾‹2ï¼š ã‚³ãƒ¬ã‚¯ã‚·ãƒ§ãƒ³å†…ã®è¦ç´ ãŒã²ã¨ã¤ã§ã‚‚æ¡ä»¶ã«ä¸€è‡´ã™ã‚‹ã‹ã©ã†ã‹ã‚’åˆ¤åˆ¥ã™ã‚‹ anySatisfy/anySatisfyWithãƒ¡ã‚½ãƒƒãƒ‰ã‚’ä½¿ç”¨ã—ã¦ä¸‹è¨˜ã®ã‚ˆã†ã«2é€šã‚Šã®æ–¹æ³•ã§æ›¸ã‘ã¾ã™ã€‚ @Test public void doAnyPeopleHaveCats() { Predicate<Person> predicate = p
decoy2004 2015/04/12
Java

Java 8

collection

library
ãƒªãƒ³ã‚¯
@Delegateã§Javaãƒãƒ¼ã‚¸ãƒ§ãƒ³ã®å·®ç•°ãŒé¡•åœ¨åŒ–ã™ã‚‹ã‚±ãƒ¼ã‚¹ - GeekFactory
JDK 8ã§ãƒ“ãƒ«ãƒ‰ã—ãŸã‚¯ãƒ©ã‚¹ãƒ•ã‚¡ã‚¤ãƒ«ã‚’JDK 7ã§å®Ÿè¡Œã™ã‚‹ã¨ClassNotFoundExceptionãŒç™ºç”Ÿã™ã‚‹äº‹è±¡ã§ãƒãƒžã£ãŸã®ã§ãƒ¡ãƒ¢ã€‚çµè«–ã‹ã‚‰ã„ã†ã¨ã€ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã§Java 8ã«å›ºæœ‰ã®ã‚¯ãƒ©ã‚¹ã‚’ç›´æŽ¥å‚ç…§ã—ã¦ã„ãªãã¦ã‚‚ã€@Delegateã«ã‚ˆã£ã¦é–“æŽ¥çš„ã«å‚ç…§ã•ã‚Œã‚‹ã‚±ãƒ¼ã‚¹ãŒã‚ã‚Šã¾ã™ã€‚ å‰æ JDK 8ã§ã®ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«æ™‚ã«source, targetã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã‚’æŒ‡å®šã—ã¦ã„ã‚‹ã‚‚ã®ã¨ã—ã¾ã™ã€‚ ãã†ã—ãªã„ã¨ã€JDK 7ã§ã‚¯ãƒ©ã‚¹ãƒ•ã‚¡ã‚¤ãƒ«ã‚’èªã¿è¾¼ã‚“ã æ™‚ã«ä»¥ä¸‹ã®ã‚¨ãƒ©ãƒ¼ãŒç™ºç”Ÿã—ã¾ã™ã€‚ Exception in thread "main" java.lang.UnsupportedClassVersionError: Main : Unsupported major.minor version 52.0 Gradleã§ã¯ä»¥ä¸‹ã®2è¡Œã‚’æ›¸ãã ã‘ã§OKã§ã™ã€‚ sourceCompatibility = JavaVe
decoy2004 2014/09/27
jdk

java

Java 8
ãƒªãƒ³ã‚¯
Javaã«ã‚ˆã‚‹é–¢æ•°åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°
æœ¬æ›¸ã¯Java 8ã§è¿½åŠ ã•ã‚ŒãŸæ–°æ©Ÿèƒ½ã®ã†ã¡ãƒ©ãƒ ãƒ€å¼ã¨Stream APIã«ç„¦ç‚¹ã‚’çµžã‚Šã€ã“ã‚Œã‚‰ã‚’ä½¿ã£ãŸé–¢æ•°åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã«ã¤ã„ã¦è§£èª¬ã—ã¾ã™ã€‚ä»Šã¾ã§ã®Javaã«ã¯å˜åœ¨ã—ãªã‹ã£ãŸã“ã®æ–°ã—ã„ãƒ‘ãƒ©ãƒ€ã‚¤ãƒ ã«è¸ã¿è¾¼ã‚€ã“ã¨ã§ã€å†—é•·ã•ã‚’æŽ’ã—ã€ã‚ˆã‚Šç°¡æ½”ãªãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚’å®Ÿç¾ã—ã¾ã™ã€‚ã—ã‹ã—ã€ã“ã‚Œã‚’ä½¿ã„ã“ãªã™ãŸã‚ã«ã¯ã€å¾“æ¥ã®Javaã«ãŠã‘ã‚‹è€ƒãˆæ–¹ã‚’ä¸€æ—¦æ¨ã¦åŽ»ã‚Šã€æ–°ãŸãªè€ƒãˆæ–¹ã‚’ã‚‚ã£ã¦ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚’è¡Œã‚ãªã‘ã‚Œã°ãªã‚Šã¾ã›ã‚“ã€‚ æœ¬æ›¸ã§ã¯ã€å¾“æ¥ã®æ‰‹æ³•ã¨å¯¾æ¯”ã•ã›ã¤ã¤ã€APIã®ä½¿ç”¨æ–¹æ³•ã‚„è¨è¨ˆæ‰‹æ³•ã‚’è©³è§£ã—ã€åŸºç¤Žã‚’å›ºã‚ã¾ã™ã€‚é…å»¶è©•ä¾¡ã‚„å†å¸°ã€ãã—ã¦ä¸¦åˆ—åŒ–ã«ã¤ã„ã¦ã‚‚ã‚µãƒ³ãƒ—ãƒ«ã‚³ãƒ¼ãƒ‰ã‚’ä½¿ã£ã¦è©³ã—ãè§£èª¬ã—ã¾ã™ã€‚æ—¥æœ¬èªžç‰ˆã§ã¯Java Championã§ã‚ã‚‹æ«»åºç¥ä¸€æ°ã«ã‚ˆã‚‹ã€Œæ—¥æœ¬èªžç‰ˆã¾ãˆãŒãã€ã‚’åŽéŒ²ã€‚Java 8ã®ç‰¹æ€§ã‚’ååˆ†ã«ç”Ÿã‹ã—ãŸãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚’è¡Œã†æŠ€è¡“è€…å¿…æºã®ä¸€å†Šã§ã™ã€‚ ã¾ãˆãŒã ã¯ã˜ã‚ã« 1ç« ã€€Helloã€ãƒ©ãƒ ãƒ€å¼ï¼ 1.1 è€ƒãˆæ–¹
decoy2004 2014/09/17
java

Java 8

programming

book

oreilly
ãƒªãƒ³ã‚¯
ãƒ¡ãƒ¢ã£ã¨ã‘ Java 8 Lambdas ã€œChapter2ã€œ - A Memorandum
Java 8 Lambdas: Pragmatic Functional Programming (English Edition) ä½œè€…:Richard Warburtonå‡ºç‰ˆç¤¾/ãƒ¡ãƒ¼ã‚«ãƒ¼: O'Reilly Mediaç™ºå£²æ—¥: 2014/03/18ãƒ¡ãƒ‡ã‚£ã‚¢: Kindleç‰ˆ é–¢æ•°åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚¹ã‚¿ã‚¤ãƒ«ã«ã‚ˆã£ã¦ä½•ãŒå¤‰ã‚ã‚‹ã‹ã¨ã„ã†ã¨ã€ The difference is that object-oriented programming is mostly about abstracting over data, while functional programming is mostly about abstracting over behavior. ãƒ©ãƒ ãƒ€å¼ Swing ã®ã‚¢ã‚¯ã‚·ãƒ§ãƒ³ãƒªã‚¹ãƒŠãƒ¼ã«åŒ¿åã‚¯ãƒ©ã‚¹ã§ActionListenerã®å®Ÿè£…ã‚’å…¥ã‚Œã‚‹ä¾‹ button.addActionL
decoy2004 2014/09/13
Java 8

java
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Date and Time API å¾¹åº•æ”»ç•¥(4) - Date/Time ãã®1 - Programming Studio
å‰å›žã‹ã‚‰ 1 ãƒ¶æœˆä»¥ä¸ŠçµŒã£ã¦ã—ã¾ã„ã¾ã—ãŸãŒã€ä»Šå›žã‹ã‚‰ Date and Time API ã®ä½¿ã„æ–¹ã«ã¤ã„ã¦è¦‹ã¦ã‚†ããŸã„ã¨æ€ã„ã¾ã™ã€‚Java EE ã§ã‚‚ GlassFish 4.0.1 Preview ã‚„ WildFly 8.x ãŒ Java 8 ã‚’æ£å¼ã‚µãƒãƒ¼ãƒˆã—ã¦ãŠã‚Šã€IBM WebSphere AS ã‚‚å¹´å†…ã«ã¯ Java 8 ã«å¯¾å¿œã™ã‚‹ã¨ã„ã†è©±ãŒå‡ºã¦ãŠã‚Šã€ä»Šå¾Œ Date and Time API ã‚’æ´»ç”¨ã™ã‚‹æ©Ÿä¼šã¯å¢—ãˆã¦ã„ãã“ã¨ã§ã—ã‚‡ã†ã€‚ WebLogic Server ã«é–¢ã™ã‚‹æ³¨é‡ˆï¼š æ¬¡æœŸãƒªãƒªãƒ¼ã‚¹ WebLogic 12.1.3 ã¯ Web å±¤ã«å¯¾ã™ã‚‹ Java EE 7 ä»•æ§˜ã®å…ˆè¡Œå–ã‚Šè¾¼ã¿ãŒæœ€å„ªå…ˆäº‹é …ã§ã‚ã‚‹ãŸã‚ã€Java 8 ï¼ˆç‰¹ã« Lambdaï¼‰ã«ã¯å¯¾å¿œã—ãªã„å…¬ç®—ãŒå¤§ãã„ã§ã™ã€‚å…¬å¼ã«ã¯ 12.1.4 ã¾ã§ã« Java 8 å¯¾å¿œã‚’å®Œäº†ã•ã›ã‚‹ã¨ã„ã†ãƒžã‚¤ãƒ«ã‚¹ãƒˆãƒ¼ãƒ³ã ã£ãŸã¨æ€ã„ã¾ã™ï¼ˆé–“é•ã£ã¦
decoy2004 2014/07/17
java

api

date

Java 8
ãƒªãƒ³ã‚¯
é€Ÿç¿’ Date and Time API - Programming Studio
æ—¢ã«ã€ŒDate and Time API å¾¹åº•æ”»ç•¥ã€ã®é€£è¼‰ã‚’å§‹ã‚ã¦ã„ã¾ã™ãŒã€å†…å®¹ãŒç¶²ç¾…çš„ã§åˆ†é‡ãŒå¤šã„ãŸã‚ã€ãƒ€ã‚¤ã‚¸ã‚§ã‚¹ãƒˆç‰ˆã¨ã—ã¦ã“ã®è¨˜äº‹ã‚’å…¬é–‹ã—ã¾ã™ã€‚ã“ã®è¨˜äº‹ã¯ Date and Time API ã®å°Žå…¥ã‚’ç›®çš„ã¨ã—ãŸã‚‚ã®ã§ã‚ã‚‹ãŸã‚ã€èª¬æ˜Žã¯æœ€å°é™ã«çµžã£ã¦ã„ã¾ã™ã€‚è©³ç´°ã¯ Java SE 8 API ãƒ‰ã‚ãƒ¥ãƒ¡ãƒ³ãƒˆã¾ãŸã¯ã€ŒDate and Time API å¾¹åº•æ”»ç•¥ã€ã‚’å‚ç…§ã—ã¦ãã ã•ã„ã€‚ 1. Date and Time API ã¨ãã®ä½ç½®ã¥ã‘ Date and Time API (JSR 310) ã¯ Java SE 8 ã‹ã‚‰è¿½åŠ ã•ã‚ŒãŸæ–°ã—ã„æ—¥ä»˜ã¨æ™‚åˆ»ã‚’è¡¨ç¾ã™ã‚‹ API ã§ã™ã€‚å¾“æ¥ã® Date ã‚„ Calendar ãªã©ã‚’ç½®ãæ›ãˆã‚‹ã“ã¨ã‚’å¿µé ã«é–‹ç™ºã•ã‚Œã€æ—¥ä»˜ãƒ»æ™‚åˆ»è¡¨ç¾ã®å›½éš›è¦æ ¼ã§ã‚ã‚‹ ISO 8601 (å›½å†…ã§ã¯ JIS X 0301) ã‚’ã‚«ãƒãƒ¼ã—ãŸä»•æ§˜ã«ãªã£ã¦ã„ã¾ã™ã€‚ 2. ISO 8601 ã¨
decoy2004 2014/07/17
Java

Java 8

api
ãƒªãƒ³ã‚¯
1