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Why is 128==128 false but 127==127 is true when comparing Integer wrappers in Java?
...ertain numbers are "pooled", and it returns the same instance for values smaller than 128.
From the java 1.6 source code, line 621:
public static Integer valueOf(int i) {
if(i >= -128 && i <= IntegerCache.high)
return IntegerCache.cache[i + 128];
else
return n...
Command line progress bar in Java
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answered Nov 23 '09 at 21:32
keesjkeesj
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Advantages of Binary Search Trees over Hash Tables
... instance, if a hash function has a range R(h) = 0...100, then you need to allocate an array of 100 (pointers-to) elements, even if you are just hashing 20 elements. If you were to use a binary search tree to store the same information, you would only allocate as much space as you needed, as well as...
PopupWindow - Dismiss when clicked outside
...:)
– Nguyen Tan Dat
Aug 16 '18 at 9:32
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How does `scp` differ from `rsync`?
...'m not sure.
– Rafa
May 6 '14 at 21:32
3
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When is the init() function run?
...The = 0
}
func main() {
if WhatIsThe == 0 {
fmt.Println("It's all a lie.")
}
}
AnswerToLife() is guaranteed to run before init() is called, and init() is guaranteed to run before main() is called.
Keep in mind that init() is always called, regardless if there's main or not, so if...
Interface vs Abstract Class (general OO)
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While your question indicates it's for "general OO", it really seems to be focusing on .NET use of these terms.
In .NET (similar for Java):
interfaces can have no state or implementation
a class that implements an interface must provide an implementation of all the methods of tha...
How to get the current time in YYYY-MM-DD HH:MI:Sec.Millisecond format in Java?
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Michael BorgwardtMichael Borgwardt
320k7373 gold badges453453 silver badges688688 bronze badges
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DateTime2 vs DateTime in SQL Server
...e seconds precision.
datetimeoffset provides time zone
support for globally deployed
applications.
datetime2 has larger date range, a larger default fractional precision, and optional user-specified precision. Also depending on the user-specified precision it may use less storage.
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How to show google.com in an iframe?
...ge.
– Mark Thomson
Jan 22 '19 at 23:32
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