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Why use ICollection and not IEnumerable or List on many-many/one-many relationships?
... memory but about encapsulation. Consider: private IEnumerable<int> _integers = new List<int> { 1, 2, 3 }; uses the same memory as private List<int> _integers = new List<int> { 1, 2, 3 };
– phoog
Apr 11 '12 at 20:29
...
IntelliJ inspection gives “Cannot resolve symbol” but still compiles code
Platform: IntelliJ Community Edition 10.0.3
SDK: jdk1.6.0_21
OS: Windows 7
51 Answers
...
Java URL encoding of query string parameters
... url = "https://example.com?q=" + URLEncoder.encode(q, StandardCharsets.UTF_8);
When you're still not on Java 10 or newer, then use StandardCharsets.UTF_8.toString() as charset argument, or when you're still not on Java 7 or newer, then use "UTF-8".
Note that spaces in query parameters are represe...
How do I access call log for android?
...owing permission:
<uses-permission android:name="android.permission.READ_CALL_LOG" />
Code:
Uri allCalls = Uri.parse("content://call_log/calls");
Cursor c = managedQuery(allCalls, null, null, null, null);
String num= c.getString(c.getColumnIndex(CallLog.Calls.NUMBER));// for number
Strin...
How do I tar a directory of files and folders without including the directory itself?
...
cd my_directory/ && tar -zcvf ../my_dir.tgz . && cd -
should do the job in one line. It works well for hidden files as well. "*" doesn't expand hidden files by path name expansion at least in bash. Below is my e...
How to check if there exists a process with a given pid in Python?
... if the pid is not running, and do nothing otherwise.
import os
def check_pid(pid):
""" Check For the existence of a unix pid. """
try:
os.kill(pid, 0)
except OSError:
return False
else:
return True
...
How to dismiss keyboard for UITextView with return key?
...n Xcode 6.4 , Swift 2.0. I set the key using IB.
– MB_iOSDeveloper
Jul 9 '15 at 7:20
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show 3 more comments
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Custom HTTP headers : naming conventions
...onvention for these that people tend to use? (such as prefixing them with "_" perhaps? ie: ("_ClientDataFoo")
– Marchy
Feb 9 '14 at 17:25
...
What is the difference between build.sbt and build.scala?
...thand notation roughly equivalent to this project/Build.scala:
import sbt._
import Keys._
object Build extends Build {
lazy val root = Project(id = "root", base = file(".")).settings(
name := "hello",
version := "1.0"
)
}
The .sbt file can also include vals, lazy vals, and defs...
insert multiple rows via a php array into mysql
...nment.
$sql = array();
foreach( $data as $row ) {
$sql[] = '("'.mysql_real_escape_string($row['text']).'", '.$row['category_id'].')';
}
mysql_query('INSERT INTO table (text, category) VALUES '.implode(',', $sql));
The advantage of this approach is that you don't copy and re-copy the SQL stat...