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How to run an application as “run as administrator” from the command prompt? [closed]
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Try powershell -Command "Start-Process 'C:\program.exe' -Verb runAs" (replace C:\program.exe by your command), see superuser.com/questions/55809/…
– Julien Kronegg
Apr 11 '16 at 5:48
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How to list active / open connections in Oracle?
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Error starting at line 1 in command: select * from FROM v$session Error at Command Line:1 Column:14 Error report: SQL Error: ORA-00903: invalid table name 00903. 00000 - "invalid table name" *Cause: *Action:
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Remove unused imports in Android Studio
I recently started Android Studio IDE to make my android apps. I find shortkey to remove unused import in Android Studio is not working ( Ctrl + Shift + O )
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Download a file with Android, and showing the progress in a ProgressDialog
...nload");
intent.putExtra("receiver", new DownloadReceiver(new Handler()));
startService(intent);
Here is were ResultReceiver comes to play:
private class DownloadReceiver extends ResultReceiver{
public DownloadReceiver(Handler handler) {
super(handler);
}
@Override
prote...
When to use which design pattern? [closed]
...hem and slowly you'll be able to reconize and figure out when to use them. Start with something simple as the singleton pattern :)
if you want to create one instance of an object and just ONE. You use the singleton pattern. Let's say you're making a program with an options object. You don't want se...
When to use LinkedList over ArrayList in Java?
...rable in many more use-cases than LinkedList. If you're not sure — just start with ArrayList.
LinkedList and ArrayList are two different implementations of the List interface. LinkedList implements it with a doubly-linked list. ArrayList implements it with a dynamically re-sizing array.
As wi...
Default constructor vs. inline field initialization
...favored.
More elaborated examples to illustrate
Study case 1
I will start from a simple Car class that I will update to illustrate these points.
Car declare 4 fields and some constructors that have relation between them.
1.Giving a default value in field intializers for all fields is und...
Why are floating point numbers inaccurate?
...pt that binary only has two digits: 0 and 1. So the binary mantissa always starts with 1! When a float is stored, the 1 at the front of the binary mantissa is omitted to save space; we have to place it back at the front of our third element to get the true mantissa:
1.001001100110011001100110011...
Algorithm to generate a crossword
...ips) and a board database (with pre-configured boards).
1) Search for all starting cells (the ones with an arrow), store their size and directions
2) Loop through all starting cells
2.1) Search a word
2.1.1) Check if it was not already used
2.1.2) Check if it fits
2.2) Add the word to the board
3) ...
How do I find where an exception was thrown in C++?
...gact;
sigact.sa_sigaction = crit_err_hdlr;
sigact.sa_flags = SA_RESTART | SA_SIGINFO;
if (sigaction(SIGABRT, &sigact, (struct sigaction *)NULL) != 0) {
std::cerr << "error setting handler for signal " << SIGABRT
<< " (" << strsigna...