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Package objects
...ge foo
package object bar {
// package wide constants:
def BarVersionString = "1.0"
// or type aliases
type StringMap[+T] = Map[String,T]
// can be used to emulate a package wide import
// especially useful when wrapping a Java API
type DateTime = org.joda.time.DateTime
type JLi...
How do I get class name in PHP?
In Java, we can get class name with String className = MyClass.class.getSimpleName();
10 Answers
...
Force “portrait” orientation mode
... :
<activity android:name=".<Activity Name>"
android:label="@string/app_name"
android:screenOrientation="portrait">
...
</activity>
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Javascript / Chrome - How to copy an object from the webkit inspector as code
...ecursive object, you will get [object Object]. The way out is to copy(JSON.stringify(temp1)) , the object will be fully copied to your clipboard as a valid JSON, so you'd be able to format it as you wish, using one of many resources.
...
Is returning by rvalue reference more efficient?
...p;b) {
return std::move(a < b? a: b);
}
int main() {
const std::string s = min_(std::string("A"), std::string("B"));
fprintf(stderr, "min: %s\n", s.c_str());
return 0;
}
As an interesting observation, on my machine clang++ -O3 generates 54 instructions for code above versus 62 ins...
When should I use Write-Error vs. Throw? Terminating vs. non-terminating errors
...tem.Net.HttpWebRequest]::Create($url)
}
else {
$URL_Format_Error = [string]"Connection protocol not specified. Recommended action: Try again using protocol (for example 'http://" + $url + "') instead. Function aborting..."
Write-Error $URL_Format_Error
return
}
It looks like t...
How to calculate time difference in java?
...
String time1 = "16:00:00";
String time2 = "19:00:00";
SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss");
Date date1 = format.parse(time1);
Date date2 = format.parse(time2);
long difference = date2.getTime() - date1....
Selecting a row of pandas series/dataframe by integer index
...operator, [] is to select columns.
When the indexing operator is passed a string or integer, it attempts to find a column with that particular name and return it as a Series.
So, in the question above: df[2] searches for a column name matching the integer value 2. This column does not exist and a ...
Grepping a huge file (80GB) any way to speed it up?
...ocale instead of UTF-8.
2) Use fgrep because you're searching for a fixed string, not a regular expression.
3) Remove the -i option, if you don't need it.
So your command becomes:
LC_ALL=C fgrep -A 5 -B 5 'db_pd.Clients' eightygigsfile.sql
It will also be faster if you copy your file to RAM di...
Function Pointers in Java
...flection to do it.
Pass as parameter the object and the method name (as a string) and then invoke the method. For example:
Object methodCaller(Object theObject, String methodName) {
return theObject.getClass().getMethod(methodName).invoke(theObject);
// Catch the exceptions
}
And then use ...