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Environment variables for java installation
...ava\jdk1.7.0_79 (depending on your JDK installation path it varies).
Then select the Path system variable and click Edit.... Keep the variable name as Path, and append C:\Program Files\Java\jdk1.7.0_79\bin; or %JAVA_HOME%\bin; (both mean the same) to the variable value.
Once you are done with abov...
How can I save a screenshot directly to a file in Windows? [closed]
...itmap!=IntPtr.Zero)
{
IntPtr hOld = (IntPtr) WIN32_API.SelectObject(hMemDC, m_HBitmap);
WIN32_API.BitBlt(hMemDC, 0, 0,size.cx,size.cy, hDC, 0, 0, WIN32_API.SRCCOPY);
WIN32_API.SelectObject(hMemDC, hOld);
WIN32_API.DeleteDC(hMemDC);
...
Fastest way to check if string contains only digits
...ew SortedSet<string>(); //s = string.Concat(Enumerable.Range(0, 127).Select(i => ((char)i ^ '0') < 10 ? 1 : 0));
w.Restart(); for (int i = 0; i < r; i++) b = s.All(char.IsDigit); w.Stop(); ss.Add(w.Elapsed + ".All .IsDigit");
w.Restart(); for (int i = 0; i < r; i++) b = s....
Suppress warning “Category is implementing a method which will also be implemented by its primary cl
...is answer should be the correct one. Anyway it has more votes than the one selected as answer.
– Juan Catalan
Nov 5 '14 at 17:28
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Index on multiple columns in Ruby on Rails
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The order does matter in indexing.
Put the most selective field first, i.e. the field that narrows down the number of rows fastest.
The index will only be used insofar as you use its columns in sequence starting at the beginning. i.e. if you index on [:user_id, :article_id...
Git: Discard all changes on a diverged local branch
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Dan Moulding's answer is safer. I think you should select that one.
– Daniel Apt
Jul 20 '15 at 10:34
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How do I create a new branch?
...ow:
Right click on Trunk/ which you will be creating your Branch from:
Select Branch/Tag:
Type in location of your new branch, commit message, and any externals (if your repository has them):
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List distinct values in a vector in R
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You can also use the sqldf package in R.
Z <- sqldf('SELECT DISTINCT tablename.columnname FROM tablename ')
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How to read a CSV file into a .NET Datatable
...e(path);
string fileName = Path.GetFileName(path);
string sql = @"SELECT * FROM [" + fileName + "]";
using(OleDbConnection connection = new OleDbConnection(
@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + pathOnly +
";Extended Properties=\"Text;HDR=" + h...
Can I recover a branch after its deletion in Git?
...leted. Now simply right click on the most recent commit to the branch and select the menu option Create new branch.
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