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How to create a MySQL hierarchical recursive query
...ditions in this where clause are evaluated in order, and the evaluation is interrupted once the total outcome is certain. Therefore the second condition must be in second place, as it adds the id to the parent list, and this should only happen if the id passes the first condition. The length functio...
Lambda capture as const reference?
...
Also, perhaps this should be edited into the accepted answer? Either way, there should be one good answer that covers both c++11 and c++14. Although, I guess it could be argued that c++14 will be good enough for everyone over the coming years
...
How to change color in markdown cells ipython/jupyter notebook?
...stand what you mean by 'conversion of the notebook to latex'. I am able to convert part of the text in span to latex and jupyter renders the latex in red.
– Shishir Pandey
Aug 11 '15 at 15:59
...
Android Spinner : Avoid onItemSelected calls during initialization
... Will call onItemSelected() Listener.
So first time handle this with any Integer value
Example:
Initially Take int check = 0;
public void onItemSelected(AdapterView<?> parent, View arg1, int pos,long id) {
if(++check > 1) {
TextView textView = (TextView) findViewById(R.id.text...
What is the HMVC pattern?
...ng convention" is used for internal and external requests, it's trivial to convert "internal" service requests to "external" requests or vice versa as the need arises.
Whilst this is a sensible architectural pattern, giving it its own name seems unnecessary (Symfony2 describes the same concept "sub...
Weighted random numbers
...om number is less than that item's weight
Pseudo-code illustrating this:
int sum_of_weight = 0;
for(int i=0; i<num_choices; i++) {
sum_of_weight += choice_weight[i];
}
int rnd = random(sum_of_weight);
for(int i=0; i<num_choices; i++) {
if(rnd < choice_weight[i])
return i;
rnd -...
How to document a method with parameter(s)?
...ority: The priority of the message, can be a number 1-5
:type priority: integer or None
:return: the message id
:rtype: int
:raises ValueError: if the message_body exceeds 160 characters
:raises TypeError: if the message_body is not a basestring
'''
This markup supports cross-ref...
How can I read input from the console using the Scanner class in Java?
...xample to illustrate how java.util.Scanner works would be reading a single integer from System.in. It's really quite simple.
Scanner sc = new Scanner(System.in);
int i = sc.nextInt();
To retrieve a username I would probably use sc.nextLine().
System.out.println("Enter your username: ");
Scanner ...
Command to get time in milliseconds
... output is:
3010
This is a very cheap operation, which works with shell internals and procfs.
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Set Locale programmatically
... displayMetrics = resources.getDisplayMetrics();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1){
configuration.setLocale(locale);
} else{
configuration.locale=locale;
}
if (Build.VERSION.SDK_INT > Build.VERSION_CODES.N){
getApplicationC...