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使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
... the extension itself.
The MyRotationDetector extension is implemented as Java code, which is compiled and processed to produce the aix file, as explained in App Inventor extensions. The Java code file
MyRotationDetector.java is available here:
https://drive.google.com/open?id=0B3jsksMcCW5bUU1r...
How to use ConcurrentLinkedQueue?
How do I use a ConcurrentLinkedQueue in Java?
Using this LinkedQueue , do I need to be worried about concurrency in the queue? Or do I just have to define two methods (one to retrive elements from the list and another to add elements to the list)?
Note: obviously these two methods have to be ...
new keyword in method signature
...n method".
It's a bit bizarre to me, but maybe only because I come from a Java background and there's this fundamental difference between C# inheritance and Java: In Java, methods are virtual by default unless specified by final. In C#, methods are final/concrete by default unless specified by virt...
Checkout multiple git repos into same Jenkins workspace
...: 'develop', url: 'https://github.com/WtfJoke/AnyChild.git'
}
env.JAVA_HOME="${tool 'JDK8'}"
env.PATH="${env.JAVA_HOME}/bin:${env.PATH}" // set java home in jdk environment
gradleHome = tool '3.4.1'
}
stage('Build') {
// Run the gradle build
if (isUnix()) {
sh "'${gradleH...
Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?
... Would this work then? var wtf = ((String)null).ToString(); I'm working in Java recently where casting null's is possible, has been a while since I worked with C#.
– Jochem
May 30 '12 at 13:56
...
How to copy files from 'assets' folder to sdcard?
...){
out.write(buffer, 0, read);
}
}
Reference : Move file using Java
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What is the difference between the | and || or operators?
...
Simple example in java
public class Driver {
static int x;
static int y;
public static void main(String[] args)
throws Exception {
System.out.println("using double pipe");
if(setX() || setY())
{System.out.println("x = "+x)...
Difference between a “coroutine” and a “thread”?
...these concepts depending on the language or implementation.)
For example, Java had "green threads"; these were threads that were scheduled by the Java virtual machine (JVM) instead of natively on the underlying operating system's kernel threads. These did not run in parallel or take advantage of mu...
How to disable a particular checkstyle rule for a particular line of code?
...ssion xml file with:
<suppress id="maxParameterNumber" files="YourCode.java"/>
Another method, now available in Checkstyle 5.7 is to suppress violations via the @SuppressWarnings java annotation. To do this, you will need to add two new modules (SuppressWarningsFilter and SuppressWarningsH...
Building a fat jar using maven
... <dependencyReducedPomLocation>
${java.io.tmpdir}/dependency-reduced-pom.xml
</dependencyReducedPomLocation>
<relocations>
<relocation>
...