Recent questions tagged java

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Should you check if the map containsKey before using ConcurrentMap's putIfAbsent

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361 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - When NOT to call super() method when overriding?

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162 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - implements Closeable or implements AutoCloseable

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265 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - 8080 port already taken issue when trying to redeploy project from Spring Tool Suite IDE

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418 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - The HashSet<T>.removeAll method is surprisingly slow

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254 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - What is difference between cacerts and keystore?

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304 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - How to expand folded package chain in Intellij IDEA?

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270 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Performance comparison of Thrift, Protocol Buffers, JSON, EJB, other?

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231 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Should I use EJB3 or Spring for my business layer?

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184 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Ubuntu: OpenJDK 8 - Unable to locate package

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180 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Room database migration if only new table is added

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249 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Colorize logs in eclipse console

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317 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - How to check if a variable exists in a FreeMarker template?

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320 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Set drawable size programmatically

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492 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Class Not Found Exception when running JUnit test

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512 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Unable to find a @SpringBootConfiguration when doing a JpaTest

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117 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - The fundamentals of Hash tables?

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94 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - When should I choose SAX over StAX?

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155 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Using multiple property files (via PropertyPlaceholderConfigurer) in multiple projects/modules

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215 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Observable vs Flowable rxJava2

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263 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Why so red? IntelliJ seems to think every declaration/method cannot be found/resolved

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281 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Using NotNull Annotation in method argument

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203 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Parametric polymorphism vs Ad-hoc polymorphism

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173 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - What is the purpose of JNDI

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93 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Servlet-3 Async Context, how to do asynchronous writes?

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214 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Best practices/performance: mixing StringBuilder.append with String.concat

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427 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - Difference between servlet and web service

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90 views 1 answer

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - What are detached, persistent and transient objects in hibernate?

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192 views 1 answer

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