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SparseArray vs HashMap
...);
sparseArray.put(3, "cow");
sparseArray.put(1, "camel");
sparseArray.put(99, "sheep");
sparseArray.put(30, "goat");
sparseArray.put(17, "pig");
Note that the int keys do not need to be in order. This can also be used to change the value at a particular int key.
Remove items
Use remove (or delete)...
Will iOS launch my app into the background if it was force-quit by the user?
...ausSanta Claus
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How do I create a list of random numbers without duplicates?
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This will return a list of 10 numbers selected from the range 0 to 99, without duplicates.
import random
random.sample(range(100), 10)
With reference to your specific code example, you probably want to read all the lines from the file once and then select random lines from the saved list ...
Rolling back a remote Git repository
...rigin old_master:master
Or, if there's a particular commit SHA1 (say 1e4f99e in abbreviated form) you'd like to move back to:
git push origin 1e4f99e:master
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Should I use char** argv or char* argv[]?
...e able to put any size in it, and it's just thrown away. For that reason, C99 came up with a new meaning for those numbers, and allows other things to appear between the brackets:
// says: argv is a non-null pointer pointing to at least 5 char*'s
// allows CPU to pre-load some memory.
int main(int...
Windows Forms - Enter keypress activates submit button?
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ruviruvi
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Make a bucket public in Amazon S3 [closed]
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IntricationsIntrications
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How to .gitignore all files/folder in a folder, but not the folder itself? [duplicate]
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Qrzysio
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answered Nov 22 '10 at 20:43
kubikubi
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How to Handle Button Click Events in jQuery?
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Davide GualanoDavide Gualano
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How to get a list of file names in different lines
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Johan KotlinskiJohan Kotlinski
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