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How do I invoke a Java method when given the method name as a string?
... has no arguments, only give methodName).
Then you invoke that method by calling
try {
method.invoke(obj, arg1, arg2,...);
} catch (IllegalArgumentException e) { ... }
catch (IllegalAccessException e) { ... }
catch (InvocationTargetException e) { ... }
Again, leave out the arguments in .in...
How do I make my GUI behave well when Windows font scaling is greater than 100%
...vides caveats and cautions against assuming DPI-awareness is easy.
I generally avoid DPI-aware scaling with TForm.Scaled = True. DPI awareness is only important to me when it becomes important to customers who call me and are willing to pay for it. The technical reason behind that point of view i...
Add UIPickerView & a Button in Action sheet - How?
...oblem and ultimately decided to take a different approach. I replaced the call to show the action sheet with a modal view controller containing a simple tableview.
There are many ways to accomplish this. Here's one way that I just implemented in a current project. It's nice because I can reuse it ...
What is Python used for? [closed]
....
– Paulo Scardine
Jul 15 '13 at 20:32
2
@obmon Just a simple (and very personal reason): C is gr...
What does the term “porcelain” mean in Git?
The term "porcelain" appears occasionally in the Git documentation. What does it mean?
9 Answers
...
JavaScript check if variable exists (is defined/initialized)
...
You want the typeof operator. Specifically:
if (typeof variable !== 'undefined') {
// the variable is defined
}
share
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improve this answer
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Difference between new and override
...se the last defined
implementation of a method. Even if
the method is called on a reference to
the base class it will use the
implementation overriding it.
public class Base
{
public virtual void DoIt()
{
}
}
public class Derived : Base
{
public override void DoIt()
{
...
What's the difference between Ruby's dup and clone methods?
..., name: "Favorites">
clone creates a new object with the same id, so all the changes made to that new object will overwrite the original record if hitting .save
category2 = category.clone
#=> #<Category id: 1, name: "Favorites">
...
Javascript call() & apply() vs bind()?
I already know that apply and call are similar functions which set this (context of a function).
22 Answers
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How to estimate how much memory a Pandas' DataFrame will need?
...ar 20906600
...
To include indexes, pass index=True.
So to get overall memory consumption:
>>> df.memory_usage(index=True).sum()
731731000
Also, passing deep=True will enable a more accurate memory usage report, that accounts for the full usage of the contained objects.
This is bec...