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Fastest way to implode an associative array with keys
I'm looking for a fast way to turn an associative array in to a string. Typical structure would be like a URL query string but with customizable separators so I can use ' & ' for xhtml links or ' & ' otherwise.
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How to sort List of objects by some property
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Using Comparator
For Example:
class Score {
private String name;
private List<Integer> scores;
// +accessor methods
}
Collections.sort(scores, new Comparator<Score>() {
public int compare(Score o1, Score o2) {
// compare two ins...
Why can I type alias functions and use them without casting?
...amed types.
Named types are types with a name, such as int, int64, float, string, bool. In addition, any type you create using 'type' is a named type.
Unnamed types are those such as []string, map[string]string, [4]int. They have no name, simply a description corresponding to how they are to be st...
Haskell: Converting Int to String
I know you can convert a String to an number with read :
3 Answers
3
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Removing trailing newline character from fgets() input
...t the strtok function doesn't work as expected if the user enters an empty string (i.e. presses only Enter). It leaves the \n character intact.
There are others as well, of course.
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JavaScript style for optional callbacks
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typeof doesn't cause boxing. typeof "foo" is "string", not "object". It's actually the only real way you can tell whether you're dealing with a string primitive or String object. (Perhaps you're thinking of Object.prototype.toString, which is very handy, but does cause b...
How do I encode/decode HTML entities in Ruby?
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To encode the characters, you can use CGI.escapeHTML:
string = CGI.escapeHTML('test "escaping" <characters>')
To decode them, there is CGI.unescapeHTML:
CGI.unescapeHTML("test &quot;unescaping&quot; &lt;characters&gt;")
Of course, before that you need ...
Mark parameters as NOT nullable in C#/.NET?
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An example of the desired feature:
public class Person
{
public string Name { get; set; } // Not Null
public string? Address { get; set; } // May be Null
}
The preview is available for Visual Studio 2017, 15.5.4+ preview.
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Function overloading by return type?
...e modern languages. The usual objection is that in code like
int func();
string func();
int main() { func(); }
you can't tell which func() is being called. This can be resolved in a few ways:
Have a predictable method to determine which function is called in such a situation.
Whenever such a ...
How to display Toast in Android?
...splay Toast in your application, try this:
Toast.makeText(getActivity(), (String)data.result,
Toast.LENGTH_LONG).show();
Another example:
Toast.makeText(getActivity(), "This is my Toast message!",
Toast.LENGTH_LONG).show();
We can define two constants for duration:
int LENGTH_LONG...