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How to change UIPickerView height
...erView? Some applications seem to have shorter PickerViews but setting a smaller frame doesn't seem to work and the frame is locked in Interface Builder.
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Can I set enum start value in Java?
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Java enums are not like C or C++ enums, which are really just labels for integers.
Java enums are implemented more like classes - and they can even have multiple attributes.
public enum Ids {
OPEN(100), CLOSE(200);
private final int id;
Ids(int id) { this.id = i...
Converting List to List
I have a list of integers, List<Integer> and I'd like to convert all the integer objects into Strings, thus finishing up with a new List<String> .
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Java dynamic array sizes?
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No you can't change the size of an array once created. You either have to allocate it bigger than you think you'll need or accept the overhead of having to reallocate it needs to grow in size. When it does you'll have to allocate a new one and copy the data from the old to the new:
int[] oldItems ...
How to delete every other line in Vim?
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Actually you are wrong Michael. This works flawlessly as VI will stop running the macro as soon as it hits end of file. You can very easily try it out with the sample above.
– rui
Dec 22 '09...
Draw Circle using css alone [duplicate]
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this doesn't work well if the circle is really really small
– Atav32
Aug 28 '15 at 0:14
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How do I fix “Failed to sync vcpu reg” error?
...to use the Intel HAX x86 emulator for Windows (8, if that matters). I installed everything and created an AVD for the android version, and everything appears correct, but when I run it, I get this output:
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How to search contents of multiple pdf files?
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Your distribution should provide a utility called pdftotext:
find /path -name '*.pdf' -exec sh -c 'pdftotext "{}" - | grep --with-filename --label="{}" --color "your pattern"' \;
The "-" is necessary to have pdftotext output to stdout, not to files.
The --with-filen...
How do I use the CONCAT function in SQL Server 2008 R2?
...he + operator, as @lynn-langit mentions in her answer, which I at first totally missed because I only read the accepted answer...
– Svish
May 19 '15 at 13:11
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MySQL Conditional Insert
... AND item = 456)
In this, dual is a table with one row only (found originally in Oracle, now in mysql too). The logic is that the SELECT statement generates a single row of data with the required values, but only when the values are not already found.
Alternatively, look at the MERGE statement.
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