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How to set background color of an Activity to white programmatically?

... Get a handle to the root layout used, then set the background color on that. The root layout is whatever you called setContentView with. setContentView(R.layout.main); // Now get a handle to any View contained // within the main layout y...
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How to fix SSL certificate error when running Npm on Windows?

...s similar SSL problem a few days ago. The problem is your npm does not set root certificate for the certificate used by https://registry.npmjs.org. Solutions: Use wget https://registry.npmjs.org/coffee-script --ca-certificate=./DigiCertHighAssuranceEVRootCA.crt to fix wget problem Use npm config...
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Add primary key to existing table

...primary key for sql table. First, you have to drop your old primary key. MySQL: ALTER TABLE Persion DROP PRIMARY KEY; SQL Server / Oracle / MS Access: ALTER TABLE Persion DROP CONSTRAINT 'constraint name'; You have to find the constraint name in your table. If you had given constraint n...
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Stopping an Android app from console

...s adb shell kill That will only work for devices/emulators where you have root immediately upon running a shell. That can probably be refined slightly to call su beforehand. Otherwise, you can do (manually, or I suppose scripted): pc $ adb -d shell android $ su android # ps android # kill <pro...
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Call to undefined method mysqli_stmt::get_result

... Please read the user notes for this method: http://php.net/manual/en/mysqli-stmt.get-result.php It requires the mysqlnd driver... if it isn't installed on your webspace you will have to work with BIND_RESULT & FETCH! https://secure.php.net/manual/en/mysqli-stmt.bind-result.php https://s...
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What are file descriptors, explained in simple terms?

... COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME sleep 14726 root cwd DIR 8,1 4096 1201140 /home/x sleep 14726 root rtd DIR 8,1 4096 2 / sleep 14726 root txt REG 8,1 35000 786587 /bin/sleep sleep 14726 root mem REG 8,1 11864720 118650...
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How do I get the current date and time in PHP?

...tetime; $now = new DateTime(); echo $now->format('Y-m-d H:i:s'); // MySQL datetime format echo $now->getTimestamp(); // Unix Timestamp -- Since PHP 5.3 And to specify the timezone: $now = new DateTime(null, new DateTimeZone('America/New_York')); $now->setTimezone(new DateTi...
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Drop all tables whose names begin with a certain string

... MYSQL: SELECT concat('DROP TABLE ',TABLE_NAME,";") as data FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME LIKE '[prefix]%' --- for those who like me found this thread – Andre Nov 6 '12...
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How to add directory to classpath in an application run profile in IntelliJ IDEA?

... @uaaquarius, Why is it that if I add mysql-connector-java-5.1.45/mysql-connector-java-5.1.45-bin.jar as dependency using the other method at stackoverflow.com/a/16742141/632951 it works, but doing using -Xbootclasspath/a it doesn't? – Pace...
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How to enable PHP short tags?

... /etc/php.d/gd.ini, /etc/php.d/json.ini, /etc/php.d/mcrypt.ini, /etc/php.d/mysql.ini, /etc/php.d/mysqli.ini, /etc/php.d/pdo.ini, /etc/php.d/pdo_mysql.ini, /etc/php.d/pdo_sqlite.ini, /etc/php.d/phar.ini, /etc/php.d/sqlite3.ini, /etc/php.d/zip.ini See 2nd line from the comment output.The file will b...