大约有 8,000 项符合查询结果（耗时：0.0254秒） [XML]
java中的缓存技术该如何实现 - 更多技术 - 清泛网 - 专注C/C++及内核技术
java中的缓存技术该如何实现1缓存为什么要存在?2缓存可以存在于什么地方?3缓存有哪些属性?4缓存介质?搞清楚这4个问题,那么我们就可以随意的通过应用的场景来判断使用何...1、缓存为什么要存在？
2、缓存可以存在于什么地方...
java.lang.OutOfMemoryError: Java heap space in Maven
When I run maven test, java.lang.OutOfMemoryError happens. I googled it for solutions and have tried to export MAVEN_OPTS=-Xmx1024m , but it did not work.
Anyone know other solutions for this problem? I am using maven 3.0
...
Can we make unsigned byte in Java
...d byte in unsigned. The problem is the data I am receiving is unsigned and Java does not support unsigned byte, so when it reads the data it treats it as signed.
...
What data type to use for money in Java? [closed]
What data type should you use for money in Java?
11 Answers
11
...
How to convert an Array to a Set in Java
I would like to convert an array to a Set in Java. There are some obvious ways of doing this (i.e. with a loop) but I would like something a bit neater, something like:
...
Differences between Oracle JDK and OpenJDK
...ly by Oracle only.
OpenJDK and Oracle JDK are implementations of the same Java specification passed the TCK (Java Technology Certification Kit).
Most of the vendors of JDK are written on top of OpenJDK by doing a few tweaks to [mostly to replace licensed proprietary parts / replace with more high-...
What is the C# equivalent to Java's isInstance()?
...
The equivalent of Java’s obj.getClass().isInstance(otherObj) in C# is as follows:
bool result = obj.GetType().IsAssignableFrom(otherObj.GetType());
Note that while both Java and C# work on the runtime type object (Java java.lang.Class ≣...
Java: Equivalent of Python's range(int, int)?
Does Java have an equivalent to Python's range(int, int) method?
13 Answers
13
...
Should I use Java date and time classes or go with a 3rd party library like Joda Time?
...
EDIT: Now that Java 8 has been released, if you can use that, do so! java.time is even cleaner than Joda Time, in my view. However, if you're stuck pre-Java-8, read on...
Max asked for the pros and cons of using Joda...
Pros:
It works, ...
What browsers support HTML5 WebSocket API?
...nformance tests.
Server side
It depends on which language you use.
In Java/Java EE:
Jetty 7.0 supports it (very easy to use) V 7.5 supports RFC6455 - Jetty 9.1 supports javax.websocket / JSR 356)
GlassFish 3.0 (very low level and sometimes complex), Glassfish 3.1 has new refactored Websocket ...