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decoy2004 id:decoy2004

lambdaã«é–¢ã™ã‚‹decoy2004ã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (10)

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AWS Lambda + Javaã¯ã€ãªãœ1å›žç›®ã¨3å›žç›®ã®å‡¦ç†ãŒé‡ã„ã®ã‹ï¼Ÿ - è°·æœ¬ å¿ƒ in ã›ã‚éƒ¨å±‹
ä»¥å‰ã®ã‚¨ãƒ³ãƒˆãƒªãƒ¼ã§ã€AWS Lambdaã§Javaã‚’ä½¿ã£ã¦DynamoDBã‚’å‘¼ã³å‡ºã—ãŸéš›ã«ã€åˆå›žèµ·å‹•ã«ã¨ã¦ã‚‚æ™‚é–“ãŒæŽ›ã‹ã£ãŸã¨ã„ã†è©±ã‚’æ›¸ãã¾ã—ãŸã€‚ http://d.hatena.ne.jp/cero-t/20160101/1451665326 ä»Šå›žã¯ã€ã“ã®è¾ºã‚Šã®åŽŸå› ã‚’ã‚‚ã†å°‘ã—è¿½æ±‚ã—ã¦ã¿ã¾ã™ã€‚ ãªãœ1å›žç›®ã¨3å›žç›®ã®ã‚¢ã‚¯ã‚»ã‚¹ãŒé…ã„ã®ã‹ï¼Ÿ AWS Lambdaã®ä¸èº«ã¯ã‚ˆãçŸ¥ã‚Šã¾ã›ã‚“ãŒã€ãŠãã‚‰ãã€ã‚¢ãƒƒãƒ—ãƒãƒ¼ãƒ‰ã—ãŸãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã‚’Tomcatã¿ãŸã„ãªã‚³ãƒ³ãƒ†ãƒŠã¨ã—ã¦èµ·å‹•ã•ã›ã¦ã€å¤–éƒ¨ã‹ã‚‰ã‚³ãƒ¼ãƒ«ã—ã¦ã„ã‚‹ã‚“ã ã‚ã†ã¨äºˆæƒ³ã—ã¾ã—ãŸã€‚ãã‚Œã§ã‚ã‚Œã°ã€2å›žç›®ä»¥é™ã®ã‚¢ã‚¯ã‚»ã‚¹ãŒæ—©ããªã‚‹ã“ã¨ã¯ç†è§£ãŒã§ãã¾ã™ã€‚ ãŸã ã€1å›žç›®ã¨3å›žç›®ã ã‘ãŒæ¥µç«¯ã«é…ãã¦ã€2å›žç›®ã€4å›žç›®ä»¥é™ã¯æ—©ããªã‚‹ã¨ã„ã†ã¨ã“ã‚ã¯è…‘ã«è½ã¡ã¾ã›ã‚“ã€‚ ãã®è¾ºã‚Šã‚’èª¿ã¹ã‚‹ã¹ãã€staticãªã‚«ã‚¦ãƒ³ã‚¿ã‚’ä½¿ã£ã¦ã€å€¤ãŒã©ã‚“ãªé¢¨ã«å¤‰åŒ–ã™ã‚‹ã‹ã‚’èª¿ã¹ã¦ã¿ã¾ã—ãŸã€‚ ã“ã‚“ãªã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã§ã™
decoy2004 2016/01/07
AWS

lambda

Java
ãƒªãƒ³ã‚¯
ã‚µãƒ¼ãƒãƒ¼ãƒ¬ã‚¹ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã¨ã„ã†æŠ€è¡“åˆ†é‡Žã«ã¤ã„ã¦ã®ç°¡å˜ãªèª¿æŸ» - Qiita
BaaSã®åˆ¶ç´„ã§å®Ÿç¾ã—ã«ãã„è¦ä»¶ãŒã‚ã£ãŸã¨ãã«ã€ã‚µãƒ¼ãƒãƒ¼ãƒ¬ã‚¹ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã¨ã„ã†é¸æŠžè‚¢ã¯é…åŠ›çš„ã«è¦‹ãˆã¦ãã‚‹ã€‚ãã“ã§ä»Šå›žã¯æœ€ã‚‚æŸ”è»Ÿæ€§ãŒé«˜ã„ã‚µãƒ¼ãƒãƒ¼ãƒ¬ã‚¹ã‚¤ãƒ³ãƒ•ãƒ©ã‚¹ãƒˆãƒ©ã‚¯ãƒãƒ£ã ã¨æ€ã‚ã‚Œã‚‹AWS Lambdaã‚’å–ã‚Šä¸Šã’ã€BaaSã®ä»£ã‚ã‚Šã«ãªã‚Šã†ã‚‹ã‹æ¤œè¨Žã™ã‚‹ã€‚ AWS Lambdaã®ãƒ•ã‚¡ãƒ³ã‚¯ã‚·ãƒ§ãƒ³ã¯Java 8ã§æ›¸ã‘ã‚‹ã€‚ã¨ã„ã†ã“ã¨ã¯Groovyã§ã‚‚æ›¸ã‘ã‚‹ã€‚ãƒ‰ãƒ¡ã‚¤ãƒ³ã‚¯ãƒ©ã‚¹ã‚’Java/Groovyã§æ›¸ã„ã¦Lambdaãƒ•ã‚¡ãƒ³ã‚¯ã‚·ãƒ§ãƒ³ã®ãªã‹ã§åˆ©ç”¨ã™ã‚‹ã“ã¨ãŒã§ãã‚Œã°ã€ã‚µãƒ¼ãƒãƒ¼ãƒ¬ã‚¹ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ã§ã‚‚æœ¬æ ¼çš„ãªã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚’é–‹ç™ºã§ããã†ã ã€‚ ä»Šå¾Œã®ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚¤ãƒ³ãƒ•ãƒ©ã‚¹ãƒˆãƒ©ã‚¯ãƒãƒ£é¸æŠžã«ãŠã„ã¦ã€å¾“æ¥åž‹ã®ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚µãƒ¼ãƒãƒ¼ã¨ã€è¿‘å¹´æ™®åŠã—ã¦ããŸBaaSã«åŠ ãˆã€ã‚µãƒ¼ãƒãƒ¼ãƒ¬ã‚¹ã‚¤ãƒ³ãƒ•ãƒ©ã‚¹ãƒˆãƒ©ã‚¯ãƒãƒ£ã¨ã„ã†é¸æŠžè‚¢ã‚‚å¢—ãˆã‚‹ã¨ã™ã‚Œã°æœ‰æ„ç¾©ã ã€‚ éžå¸¸é§åž‹ã®ãƒ‡ãƒ¡ãƒªãƒƒãƒˆ æ´å²çš„ã«ã¯CGI/PHPã®ã‚ˆã†ãªã‚¤ãƒ™ãƒ³ãƒˆé§†å‹•åž‹ã®ã‚¢ãƒ—ãƒªã‚±
decoy2004 2015/10/06
lambda

AWS

server

architecture
ãƒªãƒ³ã‚¯
Amazon API Gateway & Lambda & S3 ã§æ”¾ç½®å¯èƒ½ãªã‚µãƒ¼ãƒ“ã‚¹ã‚’ä½œã£ã¦ã¿ãŸ - Qiita
Deleted articles cannot be recovered. Draft of this article would be also deleted. Are you sure you want to delete this article? 1å¹´åŠã»ã©å‰ã«æ›¸ã„ãŸã“ã¡ã‚‰ã®è¨˜äº‹ã€ã‚¿ã‚¤ãƒŸãƒ³ã‚°ãŒè‰¯ã‹ã£ãŸã®ã‹ naoya ç ²ãªã®ã‹åˆ†ã‹ã‚Šã¾ã›ã‚“ãŒã€è‰²ã‚“ãªæ–¹ã«èªã‚“ã§é ‚ã‘ãŸã‚ˆã†ã§ã™ã€‚ ã—ã‹ã—ã€ã€Œæ”¾ç½®å¯èƒ½ãªã‚µãƒ¼ãƒ“ã‚¹ã€ã¨ã„ã†ã‚¿ã‚¤ãƒˆãƒ«ã«åã—ã€ã“ã®è¨˜äº‹ã§ä½œæˆã—ãŸæ¥·æ›¸ä½“ã‚µãƒ¼ãƒ“ã‚¹ã€ã¨ã†ã¨ã†ãƒ¡ãƒ³ãƒ†ã‚’è¡Œã†ã“ã¨ã«ãªã‚Šã¾ã—ãŸã€‚ ç†ç”±ã¯ã€node v0.10 ã®ã‚µãƒãƒ¼ãƒˆã‚’ Lambda ãŒæ‰“ã¡åˆ‡ã‚‹ãŸã‚ã§ã™ã€‚ ã‚³ãƒ¼ãƒ‰ãã®ã¾ã¾ node v6 ã§å‹•ã‹ã›ã‚‹ã¨ã¯æ€ã„ã¾ã™ãŒã€ãã‚Œã§ã‚‚æ”¾ç½®ã§ããªã‹ã£ãŸã“ã¨ã«ã¯å¤‰ã‚ã‚Šã‚ã‚Šã¾ã›ã‚“ã€‚è¬¹ã‚“ã§ãŠè©«ã³ç”³ã—ä¸Šã’ã¾ã™ã€‚ ã„ã‚„ã¾ã1å¹´åŠã‚‚ãƒ¡ãƒ³ãƒ†ãƒŠãƒ³ã‚¹ã›ãšã«å‹•ã„ã¦ãŸã‚“ã ã‹ã‚‰ã™ã”ã„ã˜ã‚ƒã‚“ã¨æ€ã†ã€‚
decoy2004 2015/08/20
Amazon

lambda

development

aws
ãƒªãƒ³ã‚¯
ã€æ–°æ©Ÿèƒ½ã€‘Amazon API Gatewayã‚’ä½¿ã£ã¦AWS Lambdaã‚’SDKãªã—ã§HTTPSè¶Šã—ã«æ“ä½œã™ã‚‹ | DevelopersIO
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decoy2004 2015/07/11
amazon

AWS

api

lambda

cloud
ãƒªãƒ³ã‚¯
ã‚¢ãƒ©ãƒ¼ãƒˆç™ºç”Ÿæ™‚ã« AWS Lambda ã‚’ä½¿ã£ã¦éŸ³å£°é›»è©±ã‚’ã‹ã‘ã‚‹ - Qiita
ç¶šç·¨ï¼šSNS + Lambda + Twilio ã§éŸ³å£°é›»è©±ã‚’ã‹ã‘ã‚‹ v2 CloudWatch ã‚„ç‹¬è‡ªãƒ„ãƒ¼ãƒ«ã‹ã‚‰ Amazon SNS ã« Notification ã‚’é£›ã°ã™ã¨ã€subscribe ã—ã¦ã„ã‚‹ãƒ¡ãƒ¼ãƒ«ã‚¢ãƒ‰ãƒ¬ã‚¹ã«ãƒ¡ãƒ¼ãƒ«é€šçŸ¥ãŒè¡Œãˆã¾ã™ã€‚ ã‚µãƒ¼ãƒ“ã‚¹ã®ç›£è¦–ã‚’è¡Œã£ã¦ã‚¢ãƒ©ãƒ¼ãƒˆã‚’ãƒ¡ãƒ¼ãƒ«ã§å—ä¿¡ã—ã¦ã„ã‚‹ã‚±ãƒ¼ã‚¹ãŒå¤šã„ã¨æ€ã„ã¾ã™ãŒã€æ·±å¤œç‰ã§ãƒ¡ãƒ¼ãƒ«ã‚’å—ä¿¡ã—ã¦ã‚‚æ°—ã¥ã‹ãªã„ã‚±ãƒ¼ã‚¹ãŒã‚ã‚Šã€éšœå®³æ¤œçŸ¥ãŒé…ã‚Œã¦ã—ã¾ã†ã€ã¨ã„ã†å•é¡ŒãŒã‚ã‚Šã¾ã™ã€‚ ã“ã‚Œã‚’å›žé¿ã™ã‚‹ãŸã‚ã«ã€é›»è©±ã‚’ã‹ã‘ã‚‹ã“ã¨ã«ã—ã¦ã¿ã¾ã—ãŸã€‚ é›»è©±ã‚’ã‹ã‘ã‚‹ã®ã«ä½¿ã†ã‚µãƒ¼ãƒ“ã‚¹ã¯ Twilioã€‚æ—¥æœ¬ã§ã¯KDDIãŒæ¥å‹™ææºã—ã¦ã‚µãƒ¼ãƒ“ã‚¹ã‚’æä¾›ã—ã¦ã„ã¾ã™ã€‚ Amazon SNS ã‹ã‚‰ AWS Lambda ã¸ã®é€šçŸ¥ãŒå¯èƒ½ã«ãªã£ã¦ã„ã¾ã™ã®ã§ã€Lambda ã‚’ä½¿ã£ã¦å®Ÿè£…ã—ã¾ã™ã€‚ Lambda ã¯ç¾æ™‚ç‚¹ã§æ±äº¬ãƒªãƒ¼ã‚¸ãƒ§ãƒ³ã§ã¯ä½¿ãˆãªã„ãŸã‚ã€N.Virginia ã‚’ä½¿ã„ã¾ã™ã€‚ 7/
decoy2004 2015/06/23
AWS

Lambda
ãƒªãƒ³ã‚¯
ã€ŒJavaã®é‰±è„ˆã€é€£è¼‰é–‹å§‹ | ã•ã«ã‚ã‚‰ãš
WEB+DB PRESS ã® Vol.81 ã‹ã‚‰ JVM ã‚’ä¸å¿ƒã¨ã—ãŸé€£è¼‰ã‚’å§‹ã‚ã¾ã—ãŸã®ã§æ˜¯éžè²·ã£ã¦ä¸‹ã•ã„ã€‚ 2014/6/24 ç™ºå£²ã§ã™ã€‚æ›¸åº—ã«ã¯æ—¢ã«ä¸¦ã‚“ã§ã„ã‚‹ã‹ã¨æ€ã„ã¾ã™ã€‚ ã“ã‚Œã¯ã‚¢ãƒžã‚¾ãƒ³ã®ã‚¢ãƒ•ã‚£ãƒªã‚¨ã‚¤ãƒˆãƒªãƒ³ã‚¯ã§ã™ã®ã§ã€è¸ã‚“ã ç›´å¾Œã«å†·è”µåº«ç‰ã®å¤§åž‹å®¶é›»ã‚’è³¼å…¥ã—ã¦é ‚ã‘ã‚‹ã¨åƒ•ãŒå–œã³ã¾ã™ã€‚ é›»åæ›¸ç±ç‰ˆã‚‚ã‚ã‚Šã¾ã™ã®ã§ç‰©ç†çš„ãªåª’ä½“ã«èˆˆå‘³ãŒãªã„æ–¹ã¯ PDF ã‚’è²·ã£ã¦ä¸‹ã•ã„ã€‚ WEB+DB PRESS Vol.81@Gihyo Digital Publishingåˆå›žã®å†…å®¹ã¯ãƒ©ãƒ ãƒ€å¼ + RxJava#ä»Šå›žã®å†…å®¹ã¨ã—ã¦ã¯ Java8 ã®ãƒ©ãƒ ãƒ€å¼ã«é–¢ã™ã‚‹ç°¡å˜ãªèª¬æ˜Žã‹ã‚‰ã€ãƒ©ãƒ ãƒ€å¼ã‚’åˆ©ç”¨ã—ã¦RxJavaã‚’ä½¿ã†ã¨ã“ã‚“ãªã«ä¾¿åˆ©ã¨ã„ã†è©±ã‚’æ›¸ãã¾ã—ãŸã€‚ è¨˜äº‹å†…ã§ Stream API ã«é–¢ã—ã¦èª¬æ˜Žã—ãªã‹ã£ãŸæœ€å¤§ã®ç†ç”±ã¯ãƒ©ãƒ ãƒ€å¼ã¨ Stream API ã«é–¢ã™ã‚‹é©åˆ‡ã§å¦¥å½“ãªèª¬æ˜Žã«ã¤ã„ã¦ã¯æ¡œåºã•ã‚“ã®è¨˜äº‹ã‚’èªã‚ã°è‰¯ã„ã¨è€ƒ
decoy2004 2014/06/24
stream

api

java

Java8

RxJava

lambda
ãƒªãƒ³ã‚¯
forEachæ›¸ã„ãŸã‚‰è² ã‘ã€foræ–‡ç¦æ¢ - torutkã®ãƒ–ãƒã‚°
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decoy2004 2014/05/19
ã€Žã“ã®ã‚³ãƒ¼ãƒ‰ã¯ã€æ‹¡å¼µforæ–‡ã®ä¸ã§1ã¤ã®è¦ç´ ã«ã¤ãã‚¤ãƒ†ãƒ¬ãƒ¼ã‚¿ã®hasNext()ã¨next()ã¨2ã¤ã®ãƒ¡ã‚½ãƒƒãƒ‰ãŒå‘¼ã°ã‚Œã¾ã™ã€‚ãã‚Œã‚‰ã®ãƒ¡ã‚½ãƒƒãƒ‰æ¯Žã«ãƒãƒƒã‚¯ã€ã‚¢ãƒ³ãƒãƒƒã‚¯ã•ã‚Œã‚‹ãŸã‚ã€ä¸¦è¡Œã‚¢ã‚¯ã‚»ã‚¹ã«ä¸æ•´åˆã¨ãªã‚‹ã¨ã®èª¬æ˜ŽãŒã‚ã‚Šã¾ã—ãŸã€‚ã€

java

stream

api

programming

java8

lambda
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ã“ã‚“ã«ã¡ã¯ã€‚ã‚¢ã‚ãƒã§ã™ã€‚ ã‚´ãƒ¼ãƒ«ãƒ‡ãƒ³ã‚¦ã‚£ãƒ¼ã‚¯ã§ã™ãï¼ çš†ã•ã‚“ã„ã‹ãŒãŠéŽã”ã—ã§ã™ã‹ï¼Ÿ ä»Šå¹´ã¯é–“ã«å¹³æ—¥ãŒå¤šã‚ãªã®ã§ã€å¤§åž‹é€£ä¼‘ï¼ã¨ã„ã†ã‚ˆã‚Šã¯ï¼’å›žé€£ä¼‘ãŒã‚ã‚‹ã¨ã„ã†ã‚¤ãƒ¡ãƒ¼ã‚¸ã®æ–¹ãŒå¼·ã„ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ã€‚ cero-tã®å¥¥ã•ã‚“ã¯11é€£ä¼‘ã ã¨ã‹ ã•ã¦ã€å‰å›žã«ç¶šã„ã¦ã€ParallelStreamã§å‹•ã‹ã—ã¦ã„ã‚‹ãƒ©ãƒ ãƒ€å†…ã§ã€ä¾‹å¤–ãŒç™ºç”Ÿã—ãŸå ´åˆã®æŒ™å‹•ã«ã¤ã„ã¦èª¿ã¹ã¦ã„ãã¾ã™ã€‚ ã¾ãšã¯ã€è»½ããŠã•ã‚‰ã„ã—ã¾ã™ã€‚ ä»¥ä¸‹ã®ã‚ˆã†ãªã‚³ãƒ¼ãƒ‰ã‚’æ›¸ãã¾ã—ãŸã€‚ try { List<String> strArray = Arrays.asList("abc", "def", "xxx", "ghi", "jkl", "xxx", "pqr", "stu"); strArray.parallelStream().forEach(s -> { System.out.println("ãƒ©ãƒ ãƒ€é–‹å§‹: id=" + Thread.currentTh
decoy2004 2014/05/02
java

thread

ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°

lambda

java8

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ã‚‚ã—ã‚‚ãƒ©ãƒ ãƒ€ã®ä¸ã§ä¾‹å¤–ãŒç™ºç”Ÿã—ãŸã‚‰ï¼ˆå‰ç·¨ï¼‰ - Taste of Tech Topics
ã‚ã‚‹æ—¥ã€ id:cero-t ãŒJJUGã®é‡éŽ®ãŸã¡ã¨è©±ã—ã¦ã„ã‚‹ä¸ã§ã€ã¨ã‚ã‚‹å®¿é¡Œã‚’ã‚‚ã‚‰ã„ã¾ã—ãŸã¨ã•ã€‚ ã€ŒJava8ã®ãƒ©ãƒ ãƒ€ã®ä¸ã§ä¾‹å¤–ãŒç™ºç”Ÿã—ãŸã‚‰ã€ã©ã†ãªã‚‹ã‚“ã ã‚ã†ï¼Ÿã€ ã“ã‚“ã«ã¡ã¯ã€ã‚¢ã‚ãƒã§ã™ã€‚ ã‚‚ã†çš†ã•ã‚“ã¯Java8ã‚’ä½¿ã£ã¦ã¿ã¾ã—ãŸã‹ï¼Ÿ ã¨ã‚Šã‚ãˆãšã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¦ã¿ãŸäººï¼ ãƒ»ãƒ»ã¯ãƒ¼ã„ã€€(ãŠã¾ãˆã‹ ã¨ã„ã†å†—è«‡ã¯ã•ã¦ãŠãã€ ä»Šå›žã¯ã€id:cero-t ã«ä»£ã‚ã£ã¦ç§ãŒå†’é ã®ãŠé¡Œã‚’èª¿ã¹ã¦ã¿ã¾ã—ãŸã€‚ 1. SerialStreamã§å‹•ã‹ã—ãŸãƒ©ãƒ ãƒ€ã§ä¾‹å¤–ãŒç™ºç”Ÿã—ãŸã‚‰ ã¾ãšã¯ã€å°æ‰‹èª¿ã¹ã«ã‚·ãƒ³ã‚°ãƒ«ã‚¹ãƒ¬ãƒƒãƒ‰ã®å ´åˆã‚’è¦‹ã¦ã¿ã¾ã—ã‚‡ã†ã€‚ æ¤œæŸ»ä¾‹å¤–ãŒç™ºç”Ÿã™ã‚‹ã‚ˆã†ãªã‚³ãƒ¼ãƒ‰ã‚’ãƒ©ãƒ ãƒ€ã«æ›¸ã„ã¦ã¿ã‚‹ã¨ã€ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã‚¨ãƒ©ãƒ¼ã«ãªã‚Šã¾ã™ã€‚ ã“ã‚“ãªã‚³ãƒ¼ãƒ‰ã§ã™ã€‚ try (BufferedWriter writer = Files.newBufferedWriter(Paths.get(W_FILENAME))) { // writer.
decoy2004 2014/04/15
Java8

java

programming

lambda

exception
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5. 5 / 54 ãƒ©ãƒ ãƒ€å¼ã¨ã‚¹ãƒˆãƒªãƒ¼ãƒ API â€¢ ãƒ©ãƒ ãƒ€å¼ã¨ã¯é–¢æ•°ã‚’ç°¡ä¾¿ã«è¡¨ç¾ã™ã‚‹ãŸã‚ã®è¨˜æ³•ã€‚ â€¢ ã‚¹ãƒˆãƒªãƒ¼ãƒ APIã¯ã€ãƒ©ãƒ ãƒ€å¼ã‚’åˆ©ç”¨ã—ãŸã‚³ãƒ¬ã‚¯ ã‚·ãƒ§ãƒ³æ“ä½œç”¨ã®API â€¢ é–¢æ•°åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžç”±æ¥ã€‚æ´å²ã¯å¤ã„ã€‚ â€¢ ã“ã‚Œã¾ã§ã®æ‰‹ç¶šãåž‹ã‚„ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆæŒ‡å‘çš„ãªãƒ— ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°æ‰‹æ³•ã‹ã‚‰ã€é–¢æ•°åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚° ã«å¤‰ã‚ã‚Šã¾ã™ã€‚ â€¢ ãƒ‘ãƒ©ãƒ€ã‚¤ãƒ ã‚·ãƒ•ãƒˆã®ã‚ˆã‹ã‚“ï¼ï¼ 6. 6 / 54 ç°¡å˜ãªã‚µãƒ³ãƒ—ãƒ« â€¢ ãƒ•ãƒ«ãƒ¼ãƒ„ã®ä¸€è¦§ã®ä¸ã‹ã‚‰ â€¢ åå‰ãŒâ€œã‚Šã‚“ã”â€ã§å§‹ã¾ã‚Šã€ â€¢ å€¤æ®µãŒ100å††ä»¥ä¸Šã®ã‚‚ã®ã‚’ã€ â€¢ å€¤æ®µé †ã§ä¸¦ã³æ›¿ãˆã€ â€¢ åå‰ã ã‘ã‚’å–ã‚Šå‡ºã—ã¦ã€ â€¢ ãƒªã‚¹ãƒˆã‚’ä½œæˆã™ã‚‹ 1 List<String> apples = fruits.stream() 2 .filter(f -> f.getName().startsWith("ã‚Šã‚“ã”")) 3 .filter(f -> f.getPrice() > 10
decoy2004 2014/03/26
Java

slide

Java8

å‹‰å¼·ä¼š

stream

lambda
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