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Why do indexes in XPath start with 1 and not 0?
...king about our experience with VBScript with its odd features such as 1-based index instead of 0-based indexes like almost every other language has, the reasoning being that it was a language for users (e.g. Excel VBA) instead of a language for developers.
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Add unique constraint to combination of two columns
...TER TABLE dbo.yourtablename
ADD CONSTRAINT uq_yourtablename UNIQUE(column1, column2);
or
CREATE UNIQUE INDEX uq_yourtablename
ON dbo.yourtablename(column1, column2);
Of course, it can often be better to check for this violation first, before just letting SQL Server try to insert the row and...
How to pass arguments and redirect stdin from a file to program run in gdb?
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136
Pass the arguments to the run command from within gdb.
$ gdb ./a.out
(gdb) r < t
Starting ...
Why is there no xrange function in Python3?
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178
Some performance measurements, using timeit instead of trying to do it manually with time.
Fi...
OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
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163
This is a recurring subject in Stackoverflow and since I was unable to find a relevant impleme...
How to use sed to replace only the first occurrence in a file?
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144
# sed script to change "foo" to "bar" only on the first occurrence
1{x;s/^/first/;x;}
1,/fo...
Multi-gradient shapes
...olor.GREEN, Color.WHITE, Color.WHITE},
new float[]{0,0.5f,.55f,1}, Shader.TileMode.REPEAT);
return lg;
}
};
PaintDrawable p=new PaintDrawable();
p.setShape(new RectShape());
p.setShaderFactory(sf);
Basically, the int array allows you to select multiple color stops, and the...
RegEx to parse or validate Base64 data
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148
From the RFC 4648:
Base encoding of data is used in many situations to store or transfer d...
Why do people say there is modulo bias when using a random number generator?
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How do android screen coordinates work?
...pSize.y;
EDIT:- ** **for devices supporting android api level older than 13. Can use below code.
Display mdisp = getWindowManager().getDefaultDisplay();
int maxX= mdisp.getWidth();
int maxY= mdisp.getHeight();
(x,y) :-
1) (0,0) is top left corner.
2) (maxX,0) is top right corner
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