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Connect Java to a MySQL database
...Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT ID FROM USERS");
...
rs.close();
stmt.close();
conn.close();
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How to swap files between windows in VIM?
...ndows", you can use the following keyboard sequence to swap the windows:
Select window A (either with mouse or with keyboard commands)
Press <c-w>y (yanking the buffer number)
Select window B
Press <c-w>pp (pasting the buffer)
Select window A
Press <c-w>pp (pasting the buffer aga...
Count immediate child div elements using jQuery
...est to see the speed difference and the children() method beaten the child selector (#foo > div) approach by at least 60% in Chrome (canary build v15) 20-30% in Firefox (v4).
By the way, needless to say, these two approaches produce same results (in this case, 1000).
[Update] I've updated the t...
Compare two objects' properties to find differences?
...pe t1, Type t2) {
var list1 = t1.GetProperties().OrderBy(x => x.Name).Select(x => x.Name);
var list2 = t2.GetProperties().OrderBy(x => x.Name).Select(x => x.Name);
return list1.SequenceEqual(list2);
}
shar...
How to view method information in Android Studio?
....
You can pin the window and make the documentation appear every time you select a method with your mouse though.
Android Studio 1.0: You have to hold CTRL if you want to get hold of documentation window for e.g. scrolling documentation otherwise as you move your mouse away from method document...
NSInvalidUnarchiveOperationException: Could not instantiate class named NSLayoutConstraint
...the first tab in the left hand side inspector, when you have File's owner) selected.
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CListCtrl 如何设置单元格颜色？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...、选择状态
m_ColListCtrl.SetItemState( int(m_IntItemStatePos), LVIS_SELECTED , LVIS_SELECTED|LVS_EX_FULLROWSELECT);
m_ColListCtrl.SetItemState( int(m_IntItemStatePos), LVIS_FOCUSED , LVIS_FOCUSED|LVS_EX_FULLROWSELECT);
最后附上整个源demo工程的源码：coloredlistctrl.zip
效...
Most efficient way of making an if-elif-elif-else statement when the else is done the most?
...ere an example of a if with dynamic conditions translated to a dictionary.
selector = {lambda d: datetime(2014, 12, 31) >= d : 'before2015',
lambda d: datetime(2015, 1, 1) <= d < datetime(2016, 1, 1): 'year2015',
lambda d: datetime(2016, 1, 1) <= d < datetime(2...
How to delete an item in a list if it exists?
... new_tag from a form text field with self.response.get("new_tag") and selected_tags from checkbox fields with
7 Answ...
How to use mongoimport to import csv
...Chef Tool (3.2+ version). Might help someone in future.
You just need to select collection
Select file to import
You can also unselect data which is going to import. Also many options are there.
Collection imported
See how to import video
...