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Android. Fragment getActivity() sometimes returns null
...ext an Activity?
if(pContext instanceof Activity) {
// Cast Accordingly.
final Activity lActivity = (Activity)pContext;
// Inform the ActivityBuffer.
this.getActivityBuffer().onContextGained(lActivity);
}
}
@Deprecated @Overrid...
Sorting rows in a data table
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Its Simple Use .Select function.
DataRow[] foundRows=table.Select("Date = '1/31/1979' or OrderID = 2", "CompanyName ASC");
DataTable dt = foundRows.CopyToDataTable();
And it's done......Happy Coding
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How do you run a single query through mysql from the command line?
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mysql -u <user> -p -e "select * from schema.table"
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Finding median of list in Python
...t though: sorting is much more work in the worst case (Theta(n lg n)) than selecting the median (Theta(n))...
– Jeremy
Jun 11 '19 at 13:33
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How to set cursor position in EditText?
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Where position is an int:
editText1.setSelection(position)
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How to automatically install Emacs packages by specifying a list of package names?
...nsure keyword to install packages automatically. This also sets up package-selected-packages if you need to access the package list through customize or programatically.
– Nick McCurdy
Apr 21 '17 at 22:16
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Vim multiline editing like in sublimetext?
...d asd asd asd;
Hit <C-v> to enter visual-block mode and expand your selection toward the bottom:
asd [a]sd asd asd asd;
asd [a]sd asd asd asd;
asd [a]sd asd asd asd;
asd [a]sd asd asd asd;
asd [a]sd asd asd asd;
asd [a]sd asd asd asd;
asd [a]sd asd asd asd;
Hit I"<Esc> to obtain:
asd...
A generic list of anonymous class
... okay cool, now we need an example of replacing the new {} lines with a select statement. var list = sourceList.Select( o => new { o.ModelId, ...
C++对象布局及多态探索之菱形结构虚继承 - C/C++ - 清泛网 - 专注C/C++及内核技术
...们做个指针的动态转型再调用一次：
C141 * pt1 = dynamic_cast (pt);
pt1-> foo();
第1行代码对应的汇编指令如下：
01 00423FBD cmp dword ptr [ebp+FFFFF73Ch],0
02 00423FC4 je 00423FD7
03 00423FC6 mov eax,dword ptr [ebp+FFFFF73Ch]
04 00423FCC add eax,5
0...
What is the difference between char array and char pointer in C?
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static char __unnamed[] = "abc";
char *c = __unnamed;
Note the implicit cast from char[] to char *, which is always legal.
Then if you modify c[0], you also modify __unnamed, which is UB.
This is documented at 6.4.5 "String literals":
5 In translation phase 7, a byte or code of value zero i...