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Android 開(kāi)發(fā) 藍(lán)牙手柄右搖桿的事件監(jiān)聽(tīng)?

目前只有按鍵,現(xiàn)在知道鍵位 比如 XYAB 等,都在 OnKeyDown 方法下監(jiān)聽(tīng)左搖桿和這個(gè)方法有關(guān)系 onGenericMotionEvent但是 右搖桿還是不知道 怎么監(jiān)聽(tīng) ? ? 還有 R2 L2的按鍵力度 怎...

From [Javadiscussion group] 2016-11-12 11:25:37 0  1  1033

Are there any concurrency issues when using Java8's stream to operate external collections?

Description: Take out the non-DataTime in cp. Is the following code reasonable? Is there any concurrency probl...

From [Javadiscussion group] 2017-06-23 09:13:05 0  1  1031

Problems using CompletableFuture in JDK8

{Code...} The result is: {Code...} If the last line of the above code is commented out, the expected result ca...

From [Javadiscussion group] 2017-06-15 09:22:15 0  2  1031

javascript - Multiplayer online chess and card games

Developing a multiplayer online chess and card game. How to synchronize player status and hand cards. This is ...

From [Javadiscussion group] 2017-05-17 10:03:58 0  2  1031

java - JSP如何平滑遷移VUE這類框架的方案？

先說(shuō)一下為什么要從jsp過(guò)渡到vue1.準(zhǔn)備把系統(tǒng)全部升級(jí)為api項(xiàng)目（spring-boot restful）遺棄掉jsp，主要為了解決多項(xiàng)項(xiàng)目后臺(tái)代碼重用問(wèn)題，項(xiàng)目升級(jí)為微服務(wù)（spring-cloud）架構(gòu)，比如首...

From [Javadiscussion group] 2017-04-18 10:27:05 0  4  1031

java - hibernate4二級(jí)緩存報(bào)錯(cuò)org/slf4j/LoggerFactory not found

使用的是Hibernate4.3.11 + hibernate-ehcache-4.3.11.Final.jar + ehcache-core-2.4.3.jar + slf4j-log4j12-1.7.21.jar，新...

From [Javadiscussion group] 2017-04-18 10:21:44 0  2  1031

java - Spring Boot怎么處理上傳文件時(shí)出現(xiàn)的MultipartException

在config中配置了文件的大小 {代碼...} 當(dāng)文件的大小超出設(shè)置值時(shí)，返回500錯(cuò)誤 {代碼...} 需要怎么做才能返回200的友好提示?

From [Javadiscussion group] 2017-04-18 09:43:10 0  2  1031

java - mySQL里有2000w數(shù)據(jù)，redis中只存20w的數(shù)據(jù)，如何保證redis中的數(shù)據(jù)都是熱點(diǎn)數(shù)據(jù)?

mySQL里有2000w數(shù)據(jù)，redis中只存20w的數(shù)據(jù)，如何保證redis中的數(shù)據(jù)都是熱點(diǎn)數(shù)據(jù)?

From [Javadiscussion group] 2017-04-18 09:06:49 0  4  1031

Java 和 Python兩種語(yǔ)言的區(qū)別是什么？

Java 和 Python兩種語(yǔ)言的區(qū)別是什么？

From [Javadiscussion group] 2017-02-18 09:59:49 0  2  1031

java - 有入門一些沒(méi)那么難的關(guān)于JVM的書(shū)推薦嗎

想學(xué)習(xí)一下jvm的原理，對(duì)寫(xiě)java代碼會(huì)有比較大的提升，太難的好像又還看不懂，暫時(shí)還覺(jué)得《深入了解Java虛擬機(jī)》這本書(shū)還不是很適合我這個(gè)大學(xué)生 最近下班后有空會(huì)看一下effective java 這本書(shū)，也挺不錯(cuò)的，...

From [Javadiscussion group] 2017-04-18 10:52:02 0  5  1030

JAVA寫(xiě)的IDE輸入法在linux下老是會(huì)錯(cuò)位？

之前用Eclipse的時(shí)候就會(huì)，后面換了PHPStorm后發(fā)現(xiàn)還是一樣。以前無(wú)所謂，但現(xiàn)在試過(guò)三個(gè)系統(tǒng)后準(zhǔn)備長(zhǎng)期奮戰(zhàn)linux了，所以希望能解決下。 只有在Linux下才會(huì)，Windows和Mac都不會(huì)...這個(gè)對(duì)于強(qiáng)迫...

From [Javadiscussion group] 2017-04-18 10:22:09 0  6  1030

java - TimerTask is not all executed successfully

I created a TimerManager class to allow the system to execute the corresponding four tasks after it is running...

From [Javadiscussion group] 2017-06-28 09:24:54 0  1  1029

java - sql groupby problem of getting quantity

As shown in the picture, I now have three tables. There is a one-to-one relationship between tbh and toi, and ...

From [Javadiscussion group] 2017-06-28 09:22:37 0  2  1029

java - How are the instant messaging system and push notification system implemented?

How can a message be relayed through the server to the designated other end? If it is convenient, I can post a...

From [Javadiscussion group] 2017-06-12 09:27:28 0  6  1029

java - POI導(dǎo)出excel，合并單元格后沒(méi)有邊框

使用poi導(dǎo)出excel的時(shí)候，合并單元格后沒(méi)有邊框 我先寫(xiě)了一個(gè)樣式 {代碼...} 然后在下面的調(diào)用 {代碼...} 出來(lái)的效果沒(méi)有邊框 請(qǐng)問(wèn)怎么解決啊

From [Javadiscussion group] 2017-04-18 09:06:37 0  1  1029