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Can an interface extend multiple interfaces in Java?
...rfaces have a method defining the same name and signature?
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...
Get local IP address
...everal places that show you how to get an IP address. And a lot of them look like this example:
25 Answers
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Get nth character of a string in Swift programming language
How can I get the nth character of a string? I tried bracket( [] ) accessor with no luck.
45 Answers
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Quick Sort Vs Merge Sort [duplicate]
Why might quick sort be better than merge sort ?
11 Answers
11
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Why can I use a function before it's defined in JavaScript?
This code always works, even in different browsers:
7 Answers
7
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How can I search for a commit message on GitHub?
...
Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
answered Jan 3 '17 at 23:52
vartecvartec
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Inheritance vs. Aggregation [closed]
... member.
However, there is a big gray area. So we need several other tricks.
If we have used inheritance (or we plan to use it) but we only use part of the interface, or we are forced to override a lot of functionality to keep the correlation logical. Then we have a big nasty smell that indicate...
Most efficient way to prepend a value to an array
...];
a.unshift(0);
a; // => [0, 1, 2, 3, 4]
[Edit]
This jsPerf benchmark shows that unshift is decently faster in at least a couple of browsers, regardless of possibly different big-O performance if you are ok with modifying the array in-place. If you really can't mutate the original array then...
Tool to generate JSON schema from JSON data [closed]
We have this json schema draft . I would like to get a sample of my JSON data and generate a skeleton for the JSON schema, that I can rework manually, adding things like description, required, etc, which can not be infered from the specific examples.
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How do I run a Java program from the command line on Windows?
...
Source: javaindos.
Let's say your file is in C:\mywork\
Run Command Prompt
C:\> cd \mywork
This makes C:\mywork the current directory.
C:\mywork> dir
This displays the directory contents. You should see
filenamehere.java among the files.
C:\mywork&...