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How to sign an android apk file
...t to sign your unsigned apk.
Use the keytool provided by the JDK found in %JAVA_HOME%/bin/
keytool -genkey -v -keystore my.keystore -keyalg RSA -keysize 2048 -validity 10000 -alias app
Step 2 or 4: Zipalign
zipalign which is a tool provided by the Android SDK found in e.g. %ANDROID_HOME%/sdk/bui...
AWS S3: The bucket you are attempting to access must be addressed using the specified endpoint
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I had the same problem in Java. Your solution helped. They use strange names in S3. Endpoint for region, key for object name in the repository...
– Gangnus
Jun 16 '16 at 13:44
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Show Image View from file path?
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Almost: ´decodeFile´ takes a String and not a ´java.io.File´.
– Martin
Apr 29 '11 at 11:51
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Running junit tests in parallel in a Maven build?
...can easily parallelize test suites and parameterized tests.
ParallelSuite.java
public class ParallelSuite extends Suite {
public ParallelSuite(Class<?> klass, RunnerBuilder builder) throws InitializationError {
super(klass, builder);
setScheduler(new RunnerScheduler() ...
Why do I need Transaction in Hibernate for read-only operations?
...lls of read-only flag in Transactional annotation - ibm.com/developerworks/java/library/j-ts1/index.html.
– Mahesh
Jun 4 '17 at 16:42
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How to generate random number in Bash?
...acks, but means the result is not uniformly random. Random libraries, like Java's Random, offer functions to properly return a uniform random number in the given range, rather than simply mod-ing a non-divisible number.
– dimo414
May 26 '14 at 16:07
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App Inventor 2 高频定时器教程 - 实现10ms级精确定时 · App Inventor 2 中文网
... 为什么无法精确10ms？
Android定时器精度：Java的Timer/Clock在Android上的最小精度约15ms
系统调度延迟：Android不是实时操作系统，无法保证精确的定时
垃圾回收（GC）：Java虚拟机的GC会造成偶尔的停顿
UI线程：App I...
Unit Testing bash scripts
We have a system that has some bash scripts running besides Java code. Since we are trying to Test Everything That Could Possibly Break, and those bash scripts may break, we want to test them.
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How do I use spaces in the Command Prompt?
...olumn, e.g. PROGRA~1 or DEFAUL~1.XML, in your commands. For instance:
set JAVA_HOME=c:\PROGRA~1\Java\jdk1.6.0_45
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Why should hash functions use a prime number modulus?
...same modulo k, at least until the integer type overflows.
[As an example, Java's string hashCode is eerily similar to this - it does the characters reverse order, with k=31. So you get striking relationships modulo 31 between strings that end the same way, and striking relationships modulo 2^32 bet...