大约有 9,000 项符合查询结果（耗时：0.0175秒） [XML]
Logstash实践: 分布式系统的日志监控 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...满足多种需求。
3. Logstash的安装，搭建和配置
3.1. 安装Java
下载JDK压缩包。
一般解压到/user/local/下，形成/usr/local/jdk1.7.0_79/bin这种目录结构。
配置JAVA_HOME环境变量：echo 'export JAVA_HOME=/usr/local/jdk1.7.0_79' >> ~/.bashrc。
3.2 安装Logst...
No tests found with test runner 'JUnit 4'
My Java test worked well from Eclipse. But now, when I relaunch test from the run menu, I get the following message:
41 An...
Why is processing a sorted array faster than processing an unsorted array?
...nchless - Random
seconds = 2.564
// Branchless - Sorted
seconds = 2.587
Java - NetBeans 7.1.1 JDK 7 - x64
// Branch - Random
seconds = 10.93293813
// Branch - Sorted
seconds = 5.643797077
// Branchless - Random
seconds = 3.113581453
// Branchless - Sorted
seconds = 3.186068823
Observation...
Maven project.build.directory
...utDirectory>
<sourceDirectory>${project.basedir}/src/main/java</sourceDirectory>
<scriptSourceDirectory>src/main/scripts</scriptSourceDirectory>
<testSourceDirectory>${project.basedir}/src/test/java</testSourceDirectory>
<reso...
How do I test a private function or a class that has private methods, fields or inner classes?
...thods and fields for the sake of tests.
If you have somewhat of a legacy Java application, and you're not allowed to change the visibility of your methods, the best way to test private methods is to use reflection.
Internally we're using helpers to get/set private and private static variables as...
Does a finally block always run?
Is there any condition where finally might not run in java? Thanks.
12 Answers
12
...
Android studio, gradle and NDK
...ains CLion plugin. I'm currently under the assumption that this will allow Java and C++ development from within Android Studio; however I think we'll still need to use the Gradle NDK section as I've stated above. Additionally, I think there will still be the need to write Java<->C++ wrapper fi...
Why do we declare Loggers static final?
In Java, why is it best practice to declare a logger static final ?
14 Answers
14
...
How is this fibonacci-function memoized?
...
You don't need memoize function for Haskell. Only empirative programming language need that functions. However, Haskel is functional lang and...
So, this is example of very fast Fibonacci algorithm:
fib = zipWith (+) (0:(1:fib)) (1:fib)
zipWith is function from standard Prelude:
zipWith :: (a...
Why do I get an UnsupportedOperationException when trying to remove an element from a List?
... if you want to split on a literal |, you must escape it to \|, which as a Java string literal is "\\|".
Fix:
template.split("\\|")
On better algorithm
Instead of calling remove one at a time with random indices, it's better to generate enough random numbers in the range, and then traversing ...