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How to get awaitable Thread.Sleep?
...ds.
You should instead use Task.Delay which doesn't require a new thread, and was designed precisely for this purpose:
// Execution of the async method will continue one second later, but without
// blocking.
await Task.Delay(1000);
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How to run a class from Jar which is not the Main-Class in its Manifest file
...e to run each one of those as per the need. I am trying to run it from command-line on Linux box.
7 Answers
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Get keys from HashMap in Java
....
team1.put("foo", 1);
team1.put("bar", 2);
will store 1 with key "foo" and 2 with key "bar". To iterate over all the keys:
for ( String key : team1.keySet() ) {
System.out.println( key );
}
will print "foo" and "bar".
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Remove directory which is not empty
... Strange, I've never seen behavior like that. I'd suggest searching for and/or filing a bug. github.com/isaacs/rimraf/issues
– Morgan ARR Allen
May 2 '18 at 5:13
41
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CSS How to set div height 100% minus nPx
...not w3c-approved, but every major browser supports it. Your two divs #left and #right will display a vertical scrollbar if their content is too high.
For this to work under IE7, you have to trigger the standards-compliant mode by adding a DOCTYPE :
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4...
Python - 'ascii' codec can't decode byte
...u need to change the encoding, you need to decode it into a unicode string and then encode it as the desired encoding.
– Winston Ewert
Mar 12 '13 at 16:24
20
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How to avoid null checking in Java?
...y either don't know or don't trust the contracts they are participating in and defensively overcheck for nulls. Additionally, when writing their own code, they tend to rely on returning nulls to indicate something thus requiring the caller to check for nulls.
To put this another way, there are two...
What to use instead of “addPreferencesFromResource” in a PreferenceActivity?
...ddPreferencesFromResource(int preferencesResId) is marked deprecated in Android's documentation ( Reference Entry ).
6 ...
'str' object does not support item assignment in Python
I would like to read some characters from a string and put it into other string (Like we do in C).
7 Answers
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How to use enums in C++
...== Days.Saturday)
Because Days is not a scope, nor object. It is a type. And Types themselves don't have members. What you wrote is the equivalent to std::string.clear. std::string is a type, so you can't use . on it. You use . on an instance of a class.
Unfortunately, enums are magical and so ...