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Javaã§1è¡Œãšã¤ãƒ†ã‚ã‚¹ãƒˆãƒ‡ãƒ¼ã‚¿ã‚’èªã¿è¾¼ã‚€ã‚¤ãƒ‡ã‚£ã‚ªãƒ ã®å¤‰é· - argius note
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maisenakajima 2015/06/07
java

programming

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java8
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Java 8 in Action Lambdas, Streams and functional-style programming PDF Download Free | 1617291994
SummaryJava 8 in Action is a clearly written guide to the new features of Java 8. The book covers lambdas, streams, and functional-style programming. With Java 8's functional features you can now write more concise code in less time, and also automatically benefit from multicore architectures. It's time to dig in!Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats fro
maisenakajima 2015/05/10
programming

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java

Java8

lambda

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free

PDF
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maisenakajima 2015/04/18
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maisenakajima 2015/04/18
ãƒ©ãƒ ãƒ€å¼

Java

programming

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8. Optionalã‚’ç”¨æ„ã™ã‚‹ â— å€¤ãŒã‚ã‚‹ Optional.of(str) â€“ nullã‚’æ¸¡ã™ã¨ã¬ã‚‹ã½ â— å€¤ãŒãªã„ Optional.empty() â— å€¤ãŒã‚ã‚‹ã‹ã©ã†ã‹ã‚ã‹ã‚‰ãªã„ Optional.ofNullable(str)
maisenakajima 2015/03/29
java

Java8

ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°

programming

slideshare
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Java 8 Optional Example - Java Code Geeks
In this article, we are going to show how to use the new Java 8 Optional â€“ java.util.Optional class. 1. IntroductionThe null reference is a very common probl em in Java, everybody got once a NullPointerException because some variable or input parameter was not properly validated. In Java, null, can have a logical value and a meaning; so it is important to take it into consideration and do not ignor
maisenakajima 2014/12/31
programming

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java

Java8

sample
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Java 8 Default Methods Tutorial - Java Code Geeks
In this article we are going to explain how to use and take advantage of the possibility to implement default methods in interfaces. This is one of the most important features that are available since Java update 8. All examples have been implemented using Eclipse Luna version 4.4 and Java version 8 update 5. Reasons for default methods in interfaces In â€œoldâ€ Java, if we want to add new methods to
maisenakajima 2014/12/31
programming

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java

Java8

sample
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JDK 8ã®æ–°æ©Ÿèƒ½ | Oracle æ—¥æœ¬
Java Platform, Standard Edition 8ï¼ˆJava SE 8ï¼‰ã¯ã€ä¸»è¦æ©Ÿèƒ½ãƒªãƒªãƒ¼ã‚¹ã§ã™ã€‚ã“ã®ãƒ‰ã‚ãƒ¥ãƒ¡ãƒ³ãƒˆã§ã¯ã€Java SE 8ã¨ã€Java SE 8ã®Oracleå®Ÿè£…ã§ã‚ã‚‹JDK 8ã«å«ã¾ã‚Œã‚‹æ©Ÿèƒ½ã¨æ‹¡å¼µæ©Ÿèƒ½ã«ã¤ã„ã¦ã¾ã¨ã‚ã¾ã™ã€‚ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆåã‚’ã‚¯ãƒªãƒƒã‚¯ã™ã‚‹ã¨ã€ãã®ã‚³ãƒ³ãƒãƒ¼ãƒãƒ³ãƒˆã®æ‹¡å¼µæ©Ÿèƒ½ã«é–¢ã™ã‚‹è©³ç´°èª¬æ˜ŽãŒè¡¨ç¤ºã•ã‚Œã¾ã™ã€‚ Javaãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªž ã“ã®ãƒªãƒªãƒ¼ã‚¹ã§ã¯ã€æ–°ã—ã„è¨€èªžæ©Ÿèƒ½ã§ã‚ã‚‹ãƒ©ãƒ ãƒ€å¼ãŒå°Žå…¥ã•ã‚Œã¾ã—ãŸã€‚ãƒ©ãƒ ãƒ€å¼ã‚’ä½¿ç”¨ã™ã‚‹ã¨ã€æ©Ÿèƒ½ã‚’ãƒ¡ã‚½ãƒƒãƒ‰ã®å¼•æ•°ã¨ã—ã¦å‡¦ç†ï¼ˆãƒ‡ãƒ¼ã‚¿ã¨ã—ã¦ã‚³ãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ï¼‰ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ãƒ©ãƒ ãƒ€å¼ã«ã‚ˆã‚Šã€å˜ä¸€ãƒ¡ã‚½ãƒƒãƒ‰ã®ã‚¤ãƒ³ã‚¿ãƒ•ã‚§ãƒ¼ã‚¹ï¼ˆé–¢æ•°åž‹ã‚¤ãƒ³ã‚¿ãƒ•ã‚§ãƒ¼ã‚¹ã¨å‘¼ã°ã‚Œã‚‹ï¼‰ã®ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã‚’ã‚ˆã‚Šç°¡æ½”ã«è¡¨ç¾ã§ãã¾ã™ã€‚ ãƒ¡ã‚½ãƒƒãƒ‰å‚ç…§ã«ã‚ˆã‚Šã€ã™ã§ã«åå‰ã®ã‚ã‚‹ãƒ¡ã‚½ãƒƒãƒ‰ã«å¯¾ã—ã€èªã¿ã‚„ã™ã„ãƒ©ãƒ ãƒ€å¼ã‚’åˆ©ç”¨ã§ãã¾ã™ã€‚ ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã®ãƒ¡ã‚½ãƒƒãƒ‰ã‚’ä½¿ç”¨ã™ã‚‹ã¨ã€ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã®ã‚¤ãƒ³
maisenakajima 2014/12/10
java

java8

oracle
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HashMap changes in Java 8 - Java Code Geeks
Dani BuizaNovember 20th, 2014Last Updated: February 25th, 2019 The way java.util.HashMap entries are indexed and stored has changed in the Java 8 update. Hash elements use balanced trees instead of linked lists under certain circumstances now. All these is what this article is about. The main idea is that when the number of it ems in a hash is larger than a certain value, the hash will change from
maisenakajima 2014/11/20
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programming

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Java8

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[JavaSpecialists 222] - Identity Crisis
222Identity CrisisAuthor: Dr. Heinz M. KabutzDate: 2014-09-09Java Version: 6Category: Language Abstract:Â The JavaDocs for method Object.hashCode() seems to suggest that the value is somehow related to memory location. However, in this newsletter we discover that there are several different algorithms and that Java 8 has new defaults to give better threading result if we call hashCode a lot. Welcom
maisenakajima 2014/11/16
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programming

java

Java8
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Beginning Java 8 APIs, Extensions and Libraries
maisenakajima 2014/10/29
programming

ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°

java

Java8

ebook

free
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Java8ã§ã€ObjectãŒæŒã¤ãƒ¡ã‚½ãƒƒãƒ‰ã«ã¤ã„ã¦ã¯ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã§defaultå®Ÿè£…ã‚’ã§ããªã„ã‚ˆã†ã«ã—ã¦ã„ã‚‹ç†ç”± - ãªã¿ã²ã‚‰ãƒ–ãƒã‚°
èƒŒæ™¯Java8ã«ã¦ã€ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã«defaultãƒ¡ã‚½ãƒƒãƒ‰ï¼ˆãƒ¡ã‚½ãƒƒãƒ‰å®šç¾©ã¨å®Ÿè£…ï¼‰ã‚’å®šç¾©ã§ãã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã—ãŸã€‚ ã—ã‹ã—ã€ãã®å®Ÿè£…ã«ãŠã„ã¦Objectã‚¯ãƒ©ã‚¹ãŒæŒã£ã¦ã„ã‚‹ãƒ¡ã‚½ãƒƒãƒ‰ï¼ˆtoString()ã¨ã‹equals()ã¨ã‹ï¼‰ã¯ã€ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹å†…ã§defaultå®Ÿè£…ã¨ã—ã¦å®šç¾©ã§ããªã„ã‚ˆã†ã«ãªã£ã¦ã„ã¾ã™ã€‚ï¼ˆã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã‚¨ãƒ©ãƒ¼ã€ŒA default method cannot override a method from java.lang.Objectã€ï¼‰ ã€Œãªã‚“ã§ã‹ãªãï½žã€ã¨æ€ã£ã¦ã¡ã‚‡ã£ã¨èª¿ã¹ã¦ã¿ãŸã‚‰ã€ä»¥ä¸‹ã®è¨˜äº‹ã‚’è¦‹ã¤ã‘ã¾ã—ãŸã€‚ ã¡ã‚‡ã£ã¨è¦ç´„ã¡ã‚‡ã£ã¨è¦ç´„ã—ã¦ã¿ã¾ã™ã€‚ ï¼ƒè‡ªåˆ†ã®è§£é‡ˆã‚’ä¸€éƒ¨å…¥ã‚Œã¦ã„ã¾ã™ã€‚ ï¼ƒè‹±èªžã«ä¸è‡ªç”±ã®ãªã„æ–¹ã¯ä¸Šè¨˜ã‚’è¦‹ã¦ã‚‚ã‚‰ãˆã‚Œã°ã„ã„ã‹ã¨æ€ã„ã¾ã™ã€‚ ï¼ˆè³ªå•è€…ï¼‰ defaultãƒ¡ã‚½ãƒƒãƒ‰ã¯ã€Javaã®ä¸ã§æ–°ã—ã„è‰¯ã„ãƒ„ãƒ¼ãƒ«ã ã€‚ ã—ã‹ã—ã€ç§ãŒã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã«toString()ã®def
maisenakajima 2014/10/27
java

Java8

ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°

programming
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Java 8 Recipes, 2nd Edition
maisenakajima 2014/10/26
ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°

programming

java

Java8

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pdf

free
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Java 8 Nashorn Tutorial - winterbe
Learn all about the Nashorn Javascript Engine with easily understood code examples. The Nashorn Javascript Engine is part of Java SE 8 and competes with other standalone engines like Google V8 (the engine that powers Google Chrome and Node.js). Nashorn extends Javas capabilities by running dynamic javascript code natively on the JVM. In the next ~15 minutes you learn how to evaluate javascript on
maisenakajima 2014/10/26
Learn all about the Nashorn Javascript Engine with easily understood code examples.

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JavaScript

java8

java

Nashorn
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Java 8 Stream Tutorial - winterbe
This example-driven tutorial gives an in-depth overview about Java 8 streams. When I first read about the Stream API, I was confused about the name since it sounds similar to InputStream and OutputStream from Java I/O. But Java 8 streams are a completely different thing. Streams are Monads, thus playing a big part in bringing functional programming to Java: In functional programming, a monad is a
maisenakajima 2014/10/26
tutorial

Stream

sample

programming

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Java8

java
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Java 8 Date Time API - JSR 310
maisenakajima 2014/10/26
programming

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Java8

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Java 8 Stream Examples and Tutorial | Java67
maisenakajima 2014/10/26
ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°

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Java8

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Java 8 Tutorial Through Katas: Berlin Clock (Easy)
A programming kata is an exercise which helps a programmer hone his skills through practice and repetition. This article is part of the series Java Tutorial Through Katas. Fizz Buzz (Easy) â€“ Java 7 Berlin Clock (Easy) â€“ Java 7 and 8 Tennis Game (Easy) â€“ Java 7 Reverse Polish Notation (Medium) â€“ Java 7 and 8 The article assumes that the reader already has experience with Java 7, that he is familiar
maisenakajima 2014/10/26
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programming

Java8

java

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10 Example of Lambda Expressions and Streams in Java 8
Learn Java, Programming, Spring, Hibernate throw tutorials, examples, and interview questions Java 8 release is just a couple of weeks away, scheduled on 18th March 2014, and there is a lot of buzz and excit ement about this path-breaking release in the Java community. One feature, which is synonymous with this release is lambda expressions, which will provide the ability to pass behaviors to metho
maisenakajima 2014/10/26
java

lambda

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programming

sample

Java8
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Overview of JDK 8 Support in NetBeans IDE
maisenakajima 2014/10/26
java

Java8

netbeans

IDE
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