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What's the best way to share data between activities?
...ies which I would like to be able to use the data from the first activity.
Now I know I can do something like this:
14 Answ...
How to check whether a file is empty or not?
...ument.txt') as my_file:
... # I already have file open at this point.. now what?
... my_file.seek(0) #ensure you're at the start of the file..
... first_char = my_file.read(1) #get the first character
... if not first_char:
... print "file is empty" #first character is the em...
Is it possible to have a multi-line comments in R? [duplicate]
... <- function(x) {
# Non! Comment it out! We'll just do it once for now.
"if (x %in% 1:9) {
doTenEverythings()
}"
doEverythingOnce()
...
return(list(
everythingDone = TRUE,
howOftenDone = 1
))
}
The main limitation is that when you'...
How to find memory leak in a C++ code/project?
...house a string.
delete [] str; // Clear those 30 bytes and make str point nowhere.
2
Reallocate memory only if you've deleted. In the code below, str acquires a new address with the second allocation. The first address is lost irretrievably, and so are the 30 bytes that it pointed to. Now they'r...
Authentication issue when debugging in VS2013 - iis express
... they have added that as an 'enhancement'. That is what web.config is for. Now we can't trust what we see in web.config. Brilliant.
– trucker_jim
Feb 28 '14 at 12:04
4
...
Where and why do I have to put the “template” and “typename” keywords?
... my C++11 answer)
In order to parse a C++ program, the compiler needs to know whether certain names are types or not. The following example demonstrates that:
t * f;
How should this be parsed? For many languages a compiler doesn't need to know the meaning of a name in order to parse and basicall...
restrict edittext to single line
...
android:singleLine is now deprecated. From the documentation:
This constant was deprecated in API level 3.
This attribute is deprecated. Use maxLines instead to change the layout of a static text, and use the textMultiLine flag in the inputType a...
What is an optional value in Swift?
...String are completely different types.
Here's the most important thing to know: An optional is a kind of container. An optional String is a container which might contain a String. An optional Int is a container which might contain an Int. Think of an optional as a kind of parcel. Before you open it ...
Restarting cron after changing crontab file?
...
Ah it's that easy. It's now sudo service cron restart.
– CMCDragonkai
Jan 10 '14 at 18:25
...
opengl: glFlush() vs. glFinish()
...
I actually know what glFlush and glFinish do, and I can't tell what that image is saying. What's on the left side and the right? Also, was that image released in the Public Domain or under some license that allows you to post it on the I...