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Eclipse Kepler for OS m>X m> Mavericks request Java SE 6
I have just made a clean installation of OS m>X m> Mavericks , and I have downloaded Eclipse Kepler , but if I em>x m>ecute it, gives me this message:
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Difference between & and && in Java? [duplicate]
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& is bitwise AND operator comparing bits of each operand.
For em>x m>ample,
int a = 4;
int b = 7;
System.out.println(a & b); // prints 4
//meaning in an 32 bit system
// 00000000 00000000 00000000 00000100
// 00000000 00000000 00000000 00000111
// ===================================
// 0...
How to filter a dictionary according to an arbitrary condition function?
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And here is a good em>x m>planation why the function call dict() is slower than the constructor/literal syntam>x m> {} doughellmann.com/2012/11/…
– dorvak
Jul 10 '13 at 9:37
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How do I use 'git reset --hard HEAD' to revert to a previous commit? [duplicate]
...e, but until then Git's not really "tracking changes" to your files. (for em>x m>ample, even if you do git add to stage a new version of the file, that overwrites the previously staged version of that file in the staging area.)
In your question you then go on to ask the following:
When I want to rev...
Why are Where and Select outperforming just Select?
...t of constructing the new state of the where iterator, which is more complem>x m> than the simple iterator that the Select version uses.
As you can see, for a given n, the Select version is a constant, whereas the Where+Select version is a linear equation with p(valid) as a variable. The actual values ...
JavaScript: How to pass object by value?
...y may be to set o as the prototype of a new object.
var o = {};
(function(m>x m>){
var obj = Object.create( m>x m> );
obj.foo = 'foo';
obj.bar = 'bar';
})(o);
alert( o.foo ); // undefined
So any properties you add to obj will be not be added to o. Any properties added to obj with the same prop...
What is your favorite C programming trick? [closed]
For em>x m>ample, I recently came across this in the linum>x m> kernel:
37 Answers
37
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Make a negative number positive
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Just call Math.abs. For em>x m>ample:
int m>x m> = Math.abs(-5);
Which will set m>x m> to 5.
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Reverse Range in Swift
...gh:1,by:-1) { print(i) } // 5 4 3 2 1
stide(from:to:by:) is similar but em>x m>cludes the last value
for i in stride(from:5,to:0,by:-1) { print(i) } // 5 4 3 2 1
Update For latest Swift 2
First of all, protocol em>x m>tensions change how reverse is used:
for i in (1...5).reverse() { print(i) } // 5 4 3...
Python idiom to return first item or None
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Python 2.6+
nem>x m>t(iter(your_list), None)
If your_list can be None:
nem>x m>t(iter(your_list or []), None)
Python 2.4
def get_first(iterable, default=None):
if iterable:
for item in iterable:
return item
return d...