大约有 15,000 项符合查询结果（耗时：0.0323秒） [XML]
java: HashMap not working
...g, Integer> myMap = new HashMap<String, Integer>();
With auto-boxing/unboxing there is little difference in the code. Auto-boxing means you can write:
myMap.put("foo", 3);
instead of:
myMap.put("foo", new Integer(3));
Auto-boxing means the first version is implicitly converted to th...
Mysql command not found in OS X 10.7
I cant get my mysql to start on os x 10.7. It is located in /usr/local/mysql/bin/mysql
14 Answers
...
0.1 float is greater than 0.1 double. I expected it to be false [duplicate]
...et
0.1₁₀ ~ 0.000110011001100110011001101
which is greater than the exact value and the more precise approximation at 53 digits.
share
|
improve this answer
|
follow
...
Using numpy to build an array of all combinations of two arrays
...nction to study it's numerical behavior before trying to do anything complex with it so I'm searching for a efficient way to do this.
...
Is there a VB.NET equivalent of C# out parameters?
... all local variables in a method, so you can use ByRef without needing to explicitly initialise the variable first.
Example:
Sub Main()
Dim y As Integer
Test(y)
End Sub
Sub Test(ByRef x As Integer)
x = 42
End Sub
(If you examine code in the framework (for example Double.TryParse), you may...
Non-alphanumeric list order from os.listdir()
...fault order of the lists has changed to something almost nonsensical. For example, if I am in a current directory containing the following subdirectories: run01, run02, ... run19, run20, and then I generate a list from the following command:
...
C# constructor execution order
...
Then starting with the most derived class:
Variable initializers are executed for the most-derived type
Constructor chaining works out which base class constructor is going to be called
The base class is initialized (recurse all of this :)
The constructor bodies in the chain in this class are e...
How can I develop for iPhone using a Windows development machine?
...
1
2
Next
511
...
Get position of UIView in respect to its superview's superview
...
Frame: (X,Y,width,height).
Hence width and height wont change even wrt the super-super view. You can easily get the X, Y as following.
X = button.frame.origin.x + [button superview].frame.origin.x;
Y = button.frame.origin.y + [but...