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How to convert hashmap to JSON object in Java
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This only works for a String,String map and not a complex String,Object.
– slott
Nov 28 '13 at 13:34
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Rank function in MySQL
...) part allows the variable initialization without requiring a separate SET command.
Test case:
CREATE TABLE person (id int, first_name varchar(20), age int, gender char(1));
INSERT INTO person VALUES (1, 'Bob', 25, 'M');
INSERT INTO person VALUES (2, 'Jane', 20, 'F');
INSERT INTO person VALUES (3...
How do I align views at the bottom of the screen?
...pport.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_height="match_parent"
android:layout_width="match_parent">
<android.sup...
Enabling WiFi on Android Emulator
...utomatically connects to it.
More Information:
https://developer.android.com/studio/run/emulator.html#wifi
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What is the optimal length for an email address in a database?
...imum length of an email address is 254 characters.
Every email address is composed of two parts. The local part that comes before the '@' sign, and the domain part that follows it. In "user@example.com", the local part is "user", and the domain part is "example.com".
The local part must not exceed...
HTML5 Local storage vs. Session storage
...there's a broader discussion that you may find helpful here: stackoverflow.com/questions/19867599/…
– Ed Sykes
Apr 27 '14 at 11:51
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Creating Multifield Indexes in Mongoose / MongoDB
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This is called the Compount Index in mongodb. So it creates indexes as field1 and field1 + field2. So it is first index according to field1 and then inside field1 with respect to field 2
– Ketan Ghumatkar
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How do I install cURL on cygwin?
I tried to enable curl on cygwin but it says bash: curl: command not found
17 Answers
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How do I update an NPM module that I published?
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Nginx 403 error: directory index of [folder] is forbidden
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