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How do I call one constructor from another in Java?
...
Yes, it is possible:
public class Foo {
private int x;
public Foo() {
this(1);
}
public Foo(int x) {
this.x = x;
}
}
To chain to a particular superclass constructor instead of one in the same class, use super instead of this. Note that you c...
What are good uses for Python3's “Function Annotations”
...no constructs that made this straightforward and part of the official syntax.
There are other uses for annotations beyond assurance. I can see how I could apply my Java-based tools to Python. For instance, I have a tool that lets you assign special warnings to methods, and gives you indications wh...
Drawing an image from a data URL to a canvas
...ge or purely in JS) by setting the src of the image to your data URL. For example:
var img = new Image;
img.src = strDataURI;
The drawImage() method of HTML5 Canvas Context lets you copy all or a portion of an image (or canvas, or video) onto a canvas.
You might use it like so:
var myCanvas = d...
Determining memory usage of objects? [duplicate]
...time ago I stole this little nugget from here:
sort( sapply(ls(),function(x){object.size(get(x))}))
it has served me well
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Where and why do I have to put the “template” and “typename” keywords?
...why do I have to put typename and template on dependent names?
What exactly are dependent names anyway?
6 Answers
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Compiling simple Hello World program on OS X via command line
I've got a simple hello world example that I'm trying to compile on OS X, named hw.cpp :
8 Answers
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what is Promotional and Feature graphic in Android Market/Play Store?
...it mean and need whether we are uploading our app into the market? Please Explain or give me a related links.
7 Answers
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Using do block vs braces {}
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Ruby cookbook says bracket syntax has higher precedence order than do..end
Keep in mind that the bracket syntax
has a higher precedence than the
do..end syntax. Consider the following
two snippets of code:
1.upto 3 do |x|
puts x
end
1.upto 3 ...