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How to create “No Activate” form in Firemonkey
...timer: TTimer; // for simulating mouse hover event
{$ENDIF}
procedure SetPosition(const x, y: Integer);
procedure GetPosition(var x, y: Integer);
procedure SetDimensions(const width, height: Integer);
procedure SetLeft(const Value: Integer);
procedure SetTop(const Value: Integer...
Check for installed packages before running install.packages() [duplicate]
...ggplot2", "dplyr", "Hmisc", "lme4", "arm", "lattice", "lavaan")
if (length(setdiff(packages, rownames(installed.packages()))) > 0) {
install.packages(setdiff(packages, rownames(installed.packages())))
}
Replace the packages listed on the first line by those needed to run your code, and voil...
Should methods in a Java interface be declared with or without a public access modifier?
...terface.
First of all Interfaces are used to specify common methods for a set of unrelated classes for which every class will have a unique implementation. Therefore it is not possible to specify the access modifier as private since it cannot be accessed by other classes to be overridden.
Second, ...
receiver type *** for instance message is a forward declaration
...t Test.h has
@class MyClass;
Step 2: find *-Swift.h file name in Build Settings (look for Objective-C Generated Interface Header Name). Name will be something like MyModule-Swift.h
Step 3: check that Test.m imports the above header
#import "MyModule-Swift.h"
...
Check if null Boolean is true results in exception
...
Boolean types can be null. You need to do a null check as you have set it to null.
if (bool != null && bool)
{
//DoSomething
}
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How to disable a particular checkstyle rule for a particular line of code?
...ings
--> Annotations
--> Unhandled token in '@SuppressWarnings': set to 'Ignore'
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Real world use of JMS/message queues? [closed]
...ilters, and logged to file for general logging.
Alerting. Again, a similar setup to the above logging, watching for specific errors, and alerting people via various means (email, text message, IM, Growl pop-up...)
Dynamically configuring and controlling software clusters. Each app server would broa...
Error installing mysql2: Failed to build gem native extension
...\app\models\city.rb to look like this
class City < ActiveRecord::Base
set_table_name "city"
end
Edit the file c:\Sites\world\config\database.yml to look like this
development:
adapter: mysql2
encoding: utf8
database: world
pool: 5
username: root
password: root
socket: /tmp/mysql.sock
add t...
What's the point of NSAssert, actually?
...n of the input rather than relying on the assertion in production (you can set a #define for release builds that disables NSAssert*.
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MySQL pagination without double-querying?
...query? The above query will only return 1 row, no matter what the LIMIT is set at. If you add GROUP BY, it'll return all results but the COUNT will be inaccurate
– pixelfreak
Nov 29 '12 at 9:57
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