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App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎 ...
...用程序私有存储的路径。
此方法可用于在应用程序首次运行时初始化数据库。只需将完整格式的 SQLite 数据库文件上传到应用程序的资产中，此函数就会将其复制到位。
注意：如果您导入的数据库尚未包含完整格式的“android_m...
Android : Check whether the phone is dual SIM
...able now from Android 5.1 onwards
Other possible option :
You can use Java reflection to get both IMEI numbers.
Using these IMEI numbers you can check whether the phone is a DUAL SIM or not.
Try following activity :
import android.app.Activity;
import android.os.Bundle;
import android.wid...
How to restart Jenkins manually?
...
For safeRestart, see stackoverflow.com/a/15555339/260122 java -jar /var/cache/jenkins/war/WEB-INF/jenkins-cli.jar -s http://localhost:8080/ safe-restart (if installed by rpm or deb, otherwise adjust accordingly).
– clacke
Nov 14 '13 at 3:28
...
C++ catching all exceptions
Is there a c++ equivalent of Java's
15 Answers
15
...
Why invoke Thread.currentThread.interrupt() in a catch InterruptException block?
... level interrupt handlers will notice it and can handle it appropriately.
Java Concurrency in Practice discusses this in more detail in Chapter 7.1.3: Responding to Interruption. Its rule is:
Only code that implements a thread's interruption policy may swallow an interruption request. General-p...
How to handle static content in Spring MVC?
...re that looks like the following:
src/
springmvc/
web/
MyController.java
WebContent/
resources/
img/
image.jpg
WEB-INF/
jsp/
index.jsp
web.xml
springmvc-servlet.xml
The contents of the files should look like:
src/springmvc/web/HelloWorldController.java:
packag...
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...
Best way to parseDouble with comma as decimal separator?
...
Use java.text.NumberFormat:
NumberFormat format = NumberFormat.getInstance(Locale.FRANCE);
Number number = format.parse("1,234");
double d = number.doubleValue();
...
Android Writing Logs to text File
...
For those new to Java logging in general and Android logging
Log4j is generic java logging implementation and is now a project of
Apache software foundation. It is not Android specific and so has
some incompatibilities with Android.
SL4J is...
Jackson JSON custom serialization for certain fields
...xception {
jsonGenerator.writeObject(tmpInt.toString());
}
}
Java should handle the autoboxing from int to Integer for you.
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