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How to read json file into java with simple JSON library
...with 'simple'), otherwise it will not allow 'for each'. Wrong: import org.json.JSONArray; import org.json.JSONObject; Correct: import org.json.simple.JSONArray; import org.json.simple.JSONObject;
– Krishna Sapkota
Jul 31 '14 at 16:14
...
Maven Could not resolve dependencies, artifacts could not be resolved
...cify repository listings outside of the standard ones at repo.maven.apache.org. In this case, the JARs are coming from a SpringSource repository and are not on Maven Central. I had assumed that the friend had the SpringSource repos listed in local .m2/settings.xml, causing no lookup errors because t...
Why '&&' and not '&'?
... There is also evidence of this in decompiled mscorlib code.
Just because .NET shields you from this type of thing doesn't mean it's not important. A branch mis-prediction is horribly expensive at 60 Hz; or at 10,000 requests/second.
Intel wouldn't have tools to identify the location of mis-predicti...
How to set up Spark on Windows?
...d from source.
You can pretty much follow this guide: http://spark.apache.org/docs/latest/building-spark.html
Download and install Maven, and set MAVEN_OPTS to the value specified in the guide.
But if you're just playing around with Spark, and don't actually need it to run on Windows for any othe...
How to use OrderBy with findAll in Spring Data
...ort) method that you can pass an instance of Sort to. For example:
import org.springframework.data.domain.Sort;
@Repository
public class StudentServiceImpl implements StudentService {
@Autowired
private StudentDAO studentDao;
@Override
public List<Student> findAll() {
...
How does one write code that best utilizes the CPU cache to improve performance?
... I know not the origins, but for one, member order is crucial in let's say network communication, where you may want to send entire structures byte by byte over the web.
– Kobrar
Nov 4 '16 at 12:54
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How to define a List bean in Spring?
...on="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.sp...
Unable to execute dex: GC overhead limit exceeded in Eclipse
...512 and 1024 as below:
openFile
--launcher.XXMaxPermSize
512M
-showsplash
org.eclipse.platform
--launcher.defaultAction
openFile
-vmargs
-Dosgi.requiredJavaVersion=1.5
-Xms512m
-Xmx1024m
The changed area in image
share
...
How to mock a final class with mockito
... with Mockito v2 only.
add this in your gradle file:
testImplementation 'org.mockito:mockito-inline:2.13.0'
This is not possible with Mockito v1, from the Mockito FAQ:
What are the limitations of Mockito
Needs java 1.5+
Cannot mock final classes
...
...
Spring .properties file: get element as an Array
...tring[], you need to add at least a <bean id="conversionService" class="org.springframework.context.support.ConversionServiceFactoryBean"> to your applicationContext.xml. Otherwise the conversion service is not used but the default property editors, which do not support converting Strings to c...