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Lambda expression to convert array/List of String to array/List of Integers
Since Java 8 comes with powerful lambda expressions,
10 Answers
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Deleting queues in RabbitMQ
...lete now in order to delete it.
See the API documentation for details:
Java Client queueDelete
.NET Client queueDelete
If you use another client, you'll need to find the equivalent method. Since it's part of the protocol, it should be there, and it's probably part of Channel or the equivalent...
When do I need to use Begin / End Blocks and the Go keyword in SQL Server?
...ing it all in one block.
BEGIN and END are just like { and } in C/++/#, Java, etc.
They bound a logical block of code. I tend to use BEGIN and END at the start and end of a stored procedure, but it's not strictly necessary there. Where it IS necessary is for loops, and IF statements, etc, wher...
What is the MySQL JDBC driver connection string?
...urations and URL correct or wrong using the following code snippet.
import java.sql.Connection;
import java.sql.DriverManager;
public class TestJdbc {
public static void main(String[] args) {
//db name:testdb_version001
//useSSL=false (get rid of MySQL SSL warnings)
S...
Android: Rotate image in imageview by an angle
...eImageView. Usage is very easy: just copy attrs.xml and RotatableImageView.java into your project and add RotatableImageView to your layout. Set desired rotation angle using example:angle parameter.
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:example="http:/...
Why covariance and contravariance do not support value type
...
@André: C# is not Java. The C#'s int keyword is an alias for the BCL's System.Int32, which is in fact a subtype of object (an alias of System.Object). In fact, int's base class is System.ValueType who's base class is System.Object. Try evaluat...
Android Studio: how to remove/update the “Created by” comment added to all new classes?
... directly.
2) Select the Templates tab and edit the #parse("File Header.java") line for any template that you desire.
Personally I followed option 1) and made the default header comment a TODO, e.g.
/**
* TODO: Add a class header comment!
*/
These instructions are based on Android Studio ...
Call a function from another file?
...
Can't resist to point out the Java like file structure... com.my.example.. kinda pokes into my eyes, though it might be just me.
– 0xc0de
Sep 9 at 8:25
...
How JavaScript closures are garbage collected
... For example, eval cannot be aliased (developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…), e.g. var eval2 = eval. If eval is used (and since it cannot be called by a different name, that is easy to do), then we must assume it can use anything in scope.
– Paul Draper
...
Detect network connection type on Android
...pe. You can use this code (derived from a @hide method in TelephonyManager.java).
This method returns a String describing the current connection type.
i.e. one of : "WIFI" , "2G" , "3G" , "4G" , "5G" , "-" (not connected) or "?" (unknown)
Remark: This code requires API 25+, but you can easily sup...