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How can I trim leading and trailing white space?
...read.table you can set the parameterstrip.white=TRUE.
If you want to clean strings afterwards you could use one of these functions:
# Returns string without leading white space
trim.leading <- function (x) sub("^\\s+", "", x)
# Returns string without trailing white space
trim.trailing <- fun...
Differences between utf8 and latin1
... at least 5.5 or go for another RDBMS like PostgreSQL. In MySQL 5.5+ it's called utf8mb4.
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Why does this assert throw a format exception when comparing structures?
... got it. And yes, it's a bug.
The problem is that there are two levels of string.Format going on here.
The first level of formatting is something like:
string template = string.Format("Expected: {0}; Actual: {1}; Message: {2}",
expected, actual, message);
Then ...
Spring Boot not serving static content
.../, /public/] plus context:/ (the root of the servlet context).
*/
private String[] staticLocations = RESOURCE_LOCATIONS;
As mentioned before, the request URL will be resolved relative to these locations. Thus src/main/resources/static/index.html will be served when the request URL is /index.html. ...
How do I return rows with a specific value first?
...
That actually works in any SQL database (and is a much cleaner solution than the accepted answer in my opinion)
– a_horse_with_no_name
Sep 24 '13 at 20:49
...
How can I get device ID for Admob
...ebugEnabled(this)) //debug flag from somewhere that you set
{
String android_id = Settings.Secure.getString(this.getContentResolver(), Settings.Secure.ANDROID_ID);
String deviceId = md5(android_id).toUpperCase();
mAdRequest.addTestDevice(deviceId);
boolean isTest...
Android List Preferences: have summary as selected value?
... android:defaultValue="0" />
Android will replace %s with the current string value of the preference, as displayed by the ListPreference's picker. The list's summary will also be set correctly when you enter the activity—you don't have to write any special code to set it up initially.
This ...
Determining if an Object is of primitive type
... up:
import java.util.*;
public class Test
{
public static void main(String[] args)
{
System.out.println(isWrapperType(String.class));
System.out.println(isWrapperType(Integer.class));
}
private static final Set<Class<?>> WRAPPER_TYPES = getWrap...
Controlling maven final name of jar artifact
... the User Property:
finalName:
Name of the generated JAR.
Type: java.lang.String
Required: No
User Property: jar.finalName
Default: ${project.build.finalName}
Command Line Usage
You should also be able to use this option on the command line with:
mvn -Djar.finalName=myCustomName ...
You shoul...
Capture screenshot of active window?
... Default is PNG</param>
public static void CaptureAndSave(string filename, CaptureMode mode = CaptureMode.Window, ImageFormat format = null) {
ImageSave(filename, format, Capture(mode));
}
/// <summary> Capture a specific window (or control...