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Do interfaces inherit from Object class in java
...bject will also accept a reference of any interface type. Moreover you can cast interface to an Object implicitly without any compiler error.
– nme
Feb 10 '19 at 14:03
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How much faster is C++ than C#?
...td::chrono::steady_clock::now();
auto initTime = std::chrono::duration_cast<std::chrono::microseconds>(initFinish - initStart);
auto fillStart = std::chrono::steady_clock::now();
for(auto i = 0, r = 0; r < ROWS; ++r)
{
for (auto c = 0; c < COLS; ++c)
{
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Where can I find “make” program for Mac OS X Lion?
Just upgraded my computer to Mac OS X Lion and went to terminal and typed "make" but it says:
-bash: make: command not found
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John Carmack's Unusual Fast Inverse Square Root (Quake III)
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Casting the pointer to long is an approximation of log_2(float). Casting it back is an approximation of 2^long. This means that you can make the ratio approximately linear.
– wizzwizz4
S...
MySQL CONCAT returns NULL if any field contain NULL
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Sorry neeraj i missed the '_' between Concat and WS Please try again with CONCAT_WS().I have updated the answer please check,
– Gurmeet
Apr 1 '13 at 10:14
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Java's Virtual Machine and CLR
... uses the same implementation as a List<Object>, with different type-casts at the API boundaries), but each value-type uses its own unique implementation (List<int> generates completely different code from List<double>).
In Java, generic types are a purely a compiler trick. The JV...
how to clear the screen in python [duplicate]
...ram in Python but I don't know how to clear the screen.
I use both Windows and Linux and I use commands to clear the screen in those, but I don't know how to do it in Python.
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How to convert an enum type variable to a string?
...of output, you can define an operator<< that takes an enum parameter and does the lookup for you.
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What does enumerate() mean?
...te function works as follows:
doc = """I like movie. But I don't like the cast. The story is very nice"""
doc1 = doc.split('.')
for i in enumerate(doc1):
print(i)
The output is
(0, 'I like movie')
(1, " But I don't like the cast")
(2, ' The story is very nice')
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COALESCE Function in TSQL
... same data-type. (If they're not the same data-type, they get implicitly cast to an appropriate data-type using data-type order of precedence.)
It's like ISNULL() but for multiple parameters, rather than just two.
It's also ANSI-SQL, where-as ISNULL() isn't.
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