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Can an interface extend multiple interfaces in Java?
...re?
There is a tricky point:
interface A {
void test();
}
interface B {
void test();
}
class C implements A, B {
@Override
public void test() {
}
}
Then single implementation works for both :).
Read my complete post here:
http://codeinventions.blogspot.com/2014/07...
What's the difference between a proc and a lambda in Ruby?
...ing a proc using proc {} and Proc.new {} are equivalent. However, using lambda {} gives you a proc that checks the number of arguments passed to it. From ri Kernel#lambda:
Equivalent to Proc.new, except the resulting Proc objects check the number of parameters passed when called.
An example:
...
Passing command line arguments to R CMD BATCH
I have been using R CMD BATCH my_script.R from a terminal to execute an R script. I am now at the point where I would like to pass an argument to the command, but am having some issues getting it working. If I do R CMD BATCH my_script.R blabla then blabla becomes the output file, rather th...
In Python, what is the difference between “.append()” and “+= []”?
What is the difference between:
12 Answers
12
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What's the best way to inverse sort in scala?
What is the best way to do an inverse sort in scala? I imagine the following is somewhat slow.
9 Answers
...
Remove duplicate rows in MySQL
I have a table with the following fields:
25 Answers
25
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Bare asterisk in function arguments?
What does a bare asterisk in the arguments of a function do?
6 Answers
6
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Array Size (Length) in C#
How can I determine size of an array (length / number of items) in C#?
9 Answers
9
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Minimizing NExpectation for a custom distribution in Mathematica
This relates to an earlier question from back in June:
1 Answer
1
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how does multiplication differ for NumPy Matrix vs Array classes?
...o use the function matrixmultipy(). I feel this makes the code very unreadable.
8 Answers
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