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Lambda capture as const reference?
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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
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Get string between two strings in a string
...= "super exemple of string key : text I want to keep - end of my string";
int pFrom = St.IndexOf("key : ") + "key : ".Length;
int pTo = St.LastIndexOf(" - ");
String result = St.Substring(pFrom, pTo - pFrom);
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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 -...
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...
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 ...
MySQL Query - Records between Today and Last 30 Days
...ecords that were added to the database within the last 30 days. I need to convert the date to mm/dd/yy because of display purposes.
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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...
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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How to scale threads according to CPU cores?
...al problem with multiple threads in Java. my math problem can be separated into work units, that I want to have solved in several threads.
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