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What is the difference between association, aggregation and composition?
What is the difference between association, aggregation, and composition?
Please explain in terms of implementation.
19 An...
boolean in an if statement
...ther hand:
if (booleanValue === true)
This will only satisfy the if condition if booleanValue is exactly equal to true. No other truthy value will satisfy it.
On the other hand if you do this:
if (someVar == true)
Then, what Javascript will do is type coerce true to match the type of someVar...
How do I syntax check a Bash script without running it?
Is it possible to check a bash script syntax without executing it?
8 Answers
8
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No output to console from a WPF application?
I'm using Console.WriteLine() from a very simple WPF test application, but when I execute the application from the command line, I'm seeing nothing being written to the console. Does anyone know what might be going on here?
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FileNotFoundException while getting the InputStream object from HttpURLConnection
...response body on POST/PUT, just a response status. You'd like to determine it instead of the body.
Replace
InputStream response = con.getInputStream();
by
int status = con.getResponseCode();
All available status codes and their meaning are available in the HTTP spec, as linked before. The web...
What is the equivalent of the C# 'var' keyword in Java?
One use of the var keyword in C# is implicit type declaration. What is the Java equivalent syntax for var ?
15 Answers
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Websocket API to replace REST API?
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Not to say that the other answers here don't have merit, they make some good points. But I'm going to go against the general consensus and agree with you that moving to websockets for more than just realtime features is very appealing.
I am seriously considering moving my app...
Cannot make a static reference to the non-static method
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Since getText() is non-static you cannot call it from a static method.
To understand why, you have to understand the difference between the two.
Instance (non-static) methods work on objects that are of a particular type (the class). These are created with the new like...
What does “coalgebra” mean in the context of programming?
...they make everything look cooler!)
An algebra, then, is just a type τ with some functions and identities. These functions take differing numbers of arguments of type τ and produce a τ: uncurried, they all look like (τ, τ,…, τ) → τ. They can also have "identities"—elements of τ that ha...
Should commit messages be written in present or past tense? [closed]
So which is it that you think is better and more intuitive?
12 Answers
12
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