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Is there a destructor for Java?
...ast reference of an object to null" but rather getting (reading) the value from a reference so you can use it for subsequent operations.
– user146043
Sep 15 '15 at 12:53
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Are nullable types reference types?
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From Nullable Types (C# Programming Guide):
Nullable types are instances of the System.Nullable struct.
and
Nullable types represent value-type variables that can be assigned the value of null. You cannot create a ...
Python: Append item to list N times
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Itertools repeat combined with list extend.
from itertools import repeat
l = []
l.extend(repeat(x, 100))
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Switch to another Git tag
...de of “inspection and discardable experiments”. To create a new branch from the commitish you’re switching to, use git switch -c <new-branch> <start-point>.
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What is the difference between Class.this and this in Java
...rClass();
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}
In this example both Innerclass are instantiated from the same Outerclass hence they both have the same reference to the Outerclass.
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How to use Comparator in Java to sort
...ber) to:
lhs-rhs
That's in case you want to sort in ascending order : from smallest number to largest number.
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Is XML case-sensitive?
...u cannot use advanced XML technologies like JAXB based on XSD 1.1 built-in from the JDK this way.
– René
Dec 29 '15 at 17:19
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How to use a variable for the key part of a map
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@mmigdol this quote is from old groovy documentation in the newest documentation its like this: Map keys are strings by default: [a:1] is equivalent to ['a':1]. This can be confusing if you define a variable named a and that you want the value of ...
vertical & horizontal lines in matplotlib
... the axis.
Instead, use plt.plot((x1, x2), (y1, y2), 'k-') to draw a line from the point (x1, y1) to the point (x2, y2) in color k. See pyplot.plot.
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Why catch and rethrow an exception in C#?
...bout right... consider the case of null pointer exception thrown somewhere from a large body of code. The message is vanilla, without the stack trace you're left with "something was null somewhere". NOT good when production is dead; and you've NO minutes or less to work out the flamin' problem is, a...