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What is private bytes, virtual bytes, working set?
...se values are a reliable indicator of how much memory an executable is actually using, and none of them are really appropriate for debugging a memory leak.
Private Bytes refer to the amount of memory that the process executable has asked for - not necessarily the amount it is actually using. They ...
How do .gitignore exclusion rules actually work?
...so git won't look inside) instead of the files within the directory (which allows for the exclusion).
Think of the exclusions as saying "but not this one" rather than "but include this" - "ignore this directory (/a/b/c/) but not this one (foo)" doesn't make much sense; "ignore all files in this dir...
Overflow-x:hidden doesn't prevent content from overflowing in mobile browsers
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I tried, I put all my code inside a div and give it overflow-x:hidden but doens't work, I add <meta name="viewport" content="width=device-width, initial-scale=1"> too but nothing changed :/ any ideas?
– user305...
Eclipse does not highlight matching variables
...dow > preferences > java > editor > mark occurrences
Select all options available there.
Also go to:
Preferences > General > Editors > Text Editors > Annotations
Compare the settings for 'Occurrences' and 'Write Occurrences'
Make sure that you don't have the 'Text as ...
How to print binary tree diagram?
..., int level, int maxLevel) {
if (nodes.isEmpty() || BTreePrinter.isAllElementsNull(nodes))
return;
int floor = maxLevel - level;
int endgeLines = (int) Math.pow(2, (Math.max(floor - 1, 0)));
int firstSpaces = (int) Math.pow(2, (floor)) - 1;
int be...
Auto column width in EPPlus
...[Worksheet.Dimension.Address].AutoFitColumns();
Please note you need to call this method after filling the worksheet.
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Android Camera Preview Stretched
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public class CameraPreview extends SurfaceView implements SurfaceHolder.Callback {
private static final String TAG = "CameraPreview";
private Context mContext;
private SurfaceHolder mHolder;
private Camera mCamera;
private List<Camera.Size> mSupportedPreviewSizes;
p...
Representing null in JSON
...s of type undefined.
JSON2 {"myCount": null}
In this case, myCount is actually defined, albeit its value is null. This is not the same as both "not undefined and not null", and if you were testing for one condition or the other, this might succeed whereas JSON1 would fail.
This is the definitive wa...
Why doesn't java.util.Set have get(int index)?
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Actually this is a recurring question when writing JavaEE applications which use Object-Relational Mapping (for example with Hibernate); and from all the people who replied here, Andreas Petersson is the only one who understood t...
HTML text input allow only numeric input
... quick way to set an HTML text input ( <input type=text /> ) to only allow numeric keystrokes (plus '.')?
62 Answers
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