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rna 2023/10/30
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mdnsjava by posicks
rna 2022/04/28
prog

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HashMapã®ã‚ãƒ¼ã«é…åˆ—ã‚’ä½¿ã†æ–¹æ³•ã‚ã‚Œã“ã‚Œ - Qiita
Mapã®keyã‚’é…åˆ—ã«ã™ã‚‹ã¨ã†ã¾ã„ã“ã¨ã„ã‹ãªã„ã‚’è¦‹ã¦ã€ãã‚Šã‚ƒå‹•ã‹ãªã„ã ã‚ã†ãªã‚ã¨æ€ã„ã¤ã¤ã€å‹•ãã‚ˆã†ã«ã™ã‚‹æ–¹æ³•ã‚ã‚Œã“ã‚Œã€‚ Java ã® Map ã§ byte é…åˆ—ã‚’ã‚ãƒ¼ã«ã™ã‚‹ã¨ãã®æ³¨æ„ç‚¹ã‚’ãƒªãƒ³ã‚¯ã—ã¦ã‚ã£ã¦ã€ã•ã‚‰ã«Using a byte array as Map keyã«ãƒªãƒ³ã‚¯ãŒã‚ã‚Šã€æœ€å¾Œã®Stack Overflowã«ã„ã‚ã„ã‚æ›¸ã„ã¦ã‚ã‚‹ã‚“ã ãŒã€‚ HashMapã®ã‚ãƒ¼ã®å‰æ ã“ã“ã§ã¯HashMapã¨ã™ã‚‹ã€‚TreeMapã ã¨å¤‰ã‚ã£ã¦ãã‚‹ã¯ãšã€‚â†’TreeMapã®ã‚ãƒ¼ã«é…åˆ—ã‚’ä½¿ã†æ–¹æ³•ã‚ã‚Œã“ã‚Œ ã‚ãƒ¼ã¨ãªã‚‹å‰æã¯ã€ - equalsã‚’å®Ÿè£…ã—ã¦ã„ã‚‹ - hashCodeã‚’å®Ÿè£…ã—ã¦ã„ã‚‹ - imuutableãªã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã§ã‚ã‚‹ 1ç•ªç›®ã¨2ç•ªç›®ã¯ã€HashMapã®containsKey, get, putã§ãƒãƒƒãƒãƒªä½¿ã£ã¦ã„ã‚‹ã€‚ 3ç•ªç›®ã¯imuutableã§ãªãã¦å¾Œã‹ã‚‰å¤‰ãˆã‚‰ã‚Œã¦ã‚‚ã„ã„ã‘ã©ã€putã—ãŸã‚ã¨ã«
rna 2022/02/18
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Google Best Practices for Java Libraries
Google Best Practices for Java Libraries Google Best Practices for Java Libraries are rules that minimize probl ems for consumers of interconnected Java libraries. These practices come from decades of aggregated experience in maintaining open source Java libraries and are informed by many hard-learned lessons from mistakes that have been made. We have found that following these rules results in hig
rna 2020/08/11
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JOL - Javaã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®ãƒ¡ãƒ¢ãƒªã‚µã‚¤ã‚ºã‚’å–å¾—ã™ã‚‹ - è¦šãˆãŸã‚‰æ›¸ã
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rna 2019/07/22
prog

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ãƒžã‚¤ã‚¯ãƒã‚½ãƒ•ãƒˆã€Javaã®é–‹ç™ºç’°å¢ƒã‚’ã¾ã‚‹ã”ã¨ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¦ãã‚Œã‚‹ã€ŒVisual Studio Code Installer for Javaã€å…¬é–‹ã€‚VSCodeã€JDKã€ãƒ†ã‚¹ãƒˆãƒ©ãƒ³ãƒŠãƒ¼ã€ãƒ‡ãƒãƒƒã‚¬ã€ä¾å˜é–¢ä¿‚ãƒ“ãƒ¥ãƒ¼ã‚¢ã€IntelliCodeãªã©
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rna 2019/06/17
prog

java
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https://bostjan-cigan.com/java-gamma-correction-algorithm/
rna 2019/01/21
look up table ã§ã‚¬ãƒ³ãƒžè£œæ£ã‚’é«˜é€ŸåŒ–

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Java 11 æ™‚ä»£ã® Java ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚¹ã‚¿ã‚¤ãƒ«ã‚¬ã‚¤ãƒ‰ - Qiita
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rna 2019/01/11
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ãƒ¢ãƒ€ãƒ³ãªJavaé–‹ç™ºã‚¬ã‚¤ãƒ‰ (2018å¹´ç‰ˆ)
Deleted articles cannot be recovered. Draft of this article would be also deleted. Are you sure you want to delete this article? 2018å¹´ç¾åœ¨ã§ã‚‚Javaé–‹ç™ºã‚’ã—ã¦ã„ã‚‹ã¨ã€Antã™ã‚‰ä½¿ã£ã¦ã„ãªã„Eclipseãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã«ãã“ãã“ã®é »åº¦ã§å‡ºãã‚ã—ã¾ã™ã€‚Eclipseã®è‡ªå‹•ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ãŒé€šã‚Œã°OKã§ã‚ã‚Šã€ãƒ“ãƒ«ãƒ‰ã¯Excelæ‰‹é †æ›¸ã‚’ã‚‚ã¨ã«æ‰‹å‹•ã§è¡Œã‚ã‚Œã€ä¾å˜é–¢ä¿‚ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã¯ã‚‚ã¡ã‚ã‚“libãƒ•ã‚©ãƒ«ãƒ€ã«å„ç¨®jarãƒ•ã‚¡ã‚¤ãƒ«ãŒæ”¾ã‚Šè¾¼ã‚“ã§ã‚ã‚Šã¾ã™ã€‚Eclipseä¸Šä»¥å¤–ã§ã¯ã©ã†å‹•ã‹ã›ã°åˆ†ã‹ã‚‹äººãŒã„ãªã„ãŸã‚ã€ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã‹ã‚‰ãƒ“ãƒ«ãƒ‰ãªã©ã‚’è¡Œã†ã“ã¨ã¯å¶ã‚ãšã€CIåŒ–ãªã‚“ã¦å¤¢ã®ã¾ãŸå¤¢ã§ã™ã€‚ ãã‚“ãªJavaé–‹ç™ºã‹ã‚‰è„±å´ã—ãŸã„äººå‘ã‘ã®Javaé–‹ç™ºã®ãƒ¢ãƒ€ãƒ³åŒ–ã‚¬ã‚¤ãƒ‰ã§ã™ã€‚ åŸºæœ¬çš„ã«Java 8ä»¥é™ã§
rna 2018/08/26
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æ¥æœˆã«ã¯Java 10ãŒç™»å ´ã—ã€9æœˆã«ã¯Java 11ãŒç™»å ´äºˆå®šã€‚æ–°ã—ã„ãƒªãƒªãƒ¼ã‚¹ãƒ¢ãƒ‡ãƒ«ã‚’æŽ¡ç”¨ã—ãŸä»Šå¾Œã®Javaã€å…¥æ‰‹æ–¹æ³•ã‚„ã‚µãƒãƒ¼ãƒˆæœŸé–“ã¯ã“ã†å¤‰ã‚ã‚‹ï¼ˆOpenJDKã«é–¢ã™ã‚‹è¿½è¨˜ã‚ã‚Šï¼‰
æ¥æœˆã«ã¯Java 10ãŒç™»å ´ã—ã€9æœˆã«ã¯Java 11ãŒç™»å ´äºˆå®šã€‚æ–°ã—ã„ãƒªãƒªãƒ¼ã‚¹ãƒ¢ãƒ‡ãƒ«ã‚’æŽ¡ç”¨ã—ãŸä»Šå¾Œã®Javaã€å…¥æ‰‹æ–¹æ³•ã‚„ã‚µãƒãƒ¼ãƒˆæœŸé–“ã¯ã“ã†å¤‰ã‚ã‚‹ï¼ˆOpenJDKã«é–¢ã™ã‚‹è¿½è¨˜ã‚ã‚Šï¼‰ 2017å¹´9æœˆã«ã€ŒJava 9ã€ãŒç™»å ´ã—ãŸã°ã‹ã‚Šã§ã™ãŒã€ã„ã¾ã‹ã‚‰1ã‚«æœˆå¾Œã®2018å¹´3æœˆã«ã¯æ—©ãã‚‚Javaã®æ–°ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã€ŒJava 10ã€ãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã¾ã™ã€‚ãã—ã¦ãã®6ã‚«æœˆå¾Œã®9æœˆã«ã¯ã•ã‚‰ã«æ¬¡ã®ã€ŒJava 11ã€ãŒãƒªãƒªãƒ¼ã‚¹äºˆå®šã§ã™ã€‚ Java 9ä»¥å¾Œã®Javaã¯ã€æ¯Žå¹´3æœˆã¨9æœˆã®å¹´2å›žãƒ¡ã‚¸ãƒ£ãƒ¼ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã‚¢ãƒƒãƒ—ã‚’è¡Œã†ã€ã‚¿ã‚¤ãƒ ãƒ™ãƒ¼ã‚¹ã®ãƒªãƒªãƒ¼ã‚¹ãƒ¢ãƒ‡ãƒ«ã‚’æŽ¡ç”¨ã™ã‚‹ã“ã¨ã«ãªã‚Šã¾ã—ãŸã€‚ä»Šå¹´ã¯ãã®æœ€åˆã®å¹´ã¨ãªã‚Šã¾ã™ã€‚ ã‚ªãƒ©ã‚¯ãƒ«ã«ã‚ˆã‚‹JDKã®æä¾›æ–¹æ³•ã‚„ã‚µãƒãƒ¼ãƒˆãƒãƒªã‚·ãƒ¼ã‚‚ã€ã“ã‚Œã‹ã‚‰å¤§ããå¤‰æ›´ã•ã‚Œã‚‹ã“ã¨ãŒæ˜Žã‚‰ã‹ã«ãªã£ã¦ã„ã¾ã™ã€‚ä¸€èˆ¬å…¬é–‹ã•ã‚Œç„¡å„Ÿã§ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ã§ããŸOracle JDKã®å…¬é–‹ã¯Java 10ãŒæœ€å¾Œã¨ãªã‚Šã€ã‚µãƒãƒ¼ãƒˆã¯3å¹´
rna 2018/02/08
prog

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Kotlin Programming Language
January 26, 2026 Building AI Agents in Kotlin â€“ Part 5: Teaching Agents to Forget Previously in this series: Agents eventually run out of context. When they do, they crash, and you lose everything mid-task. Weâ€™ve been running GPT-5 Codex since Part 1. It scores 0.58 on SWE-bench Verified. We tried Claude Sonnet 4.5 next, which scored 0.6 and ran faster on most tasks. But complex probl ems hit Claud
rna 2017/05/18
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OpenJDKã¯ä½¿ã„ç‰©ã«ãªã‚‹ã‹ï¼ŸOpenJDKã®å®Ÿéš›ã¨ä»Šå¾Œ ï¼ˆNTTãƒ‡ãƒ¼ã‚¿ ã‚ªãƒ¼ãƒ—ãƒ³ã‚½ãƒ¼ã‚¹DAY 2015 Autumn è¬›æ¼”è³‡æ–™ï¼‰
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rna 2016/03/09
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What is the purpose of the ACC_SUPER access flag on Java Class files?
The invokespecial JVM instruction is used for calling initialisation methods (<init>) when creating new objects. The description of the instruction suggests (but doesn't clarify) that the decision on whether to call the constructor of a superclass or a constructor of the current class depends on the state of the ACC_SUPER flag set within the class file. From the Sun JVM Specification: Next, the re
rna 2016/03/04
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rna 2015/06/07
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rna 2015/05/09
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rna 2015/02/26
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rna 2015/02/02
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rna 2015/01/30
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rna 2015/01/29
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rna 2014/06/08
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