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How to convert CharSequence to String?
How can I convert a Java CharSequence to a String ?
3 Answers
3
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Remove ALL white spaces from text
...e(/ /g,'')
The g character means to repeat the search through the entire string. Read about this, and other RegEx modifiers available in JavaScript here.
If you want to match all whitespace, and not just the literal space character, use \s instead:
.replace(/\s/g,'')
...
Java List.add() UnsupportedOperationException
I try to add objects to a List<String> instance but it throws an UnsupportedOperationException .
Does anyone know why?
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Split string on the first white space occurrence
I didn't get an optimized regex that split me a String basing into the first white space occurrence:
13 Answers
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How to open a web page from my application?
...), it is safer to encapsulate it in a function that checks that the passed string is indeed a URI, to avoid accidentally starting random processes on the machine.
public static bool IsValidUri(string uri)
{
if (!Uri.IsWellFormedUriString(uri, UriKind.Absolute))
return false;
Uri t...
Contains method for a slice
...iom. Since you aren't interested in the value, you might also create a map[string]struct{} for example. Using an empty struct{} here has the advantage that it doesn't require any additional space and Go's internal map type is optimized for that kind of values. Therefore, map[string] struct{} is a po...
Escape regex special characters in a Python string
...tackoverflow.com'))
www\.stackoverflow\.com
Repeating it here:
re.escape(string)
Return string with all non-alphanumerics backslashed; this is useful if you want to match an arbitrary literal string that may have regular expression metacharacters in it.
As of Python 3.7 re.escape() was changed to...
Change text color of one word in a TextView
...
Easiest way I know is to just use html.
String first = "This word is ";
String next = "<font color='#EE0000'>red</font>";
t.setText(Html.fromHtml(first + next));
But this will require you to rebuild the TextView when (if?) you want to change the color...
Compiler Ambiguous invocation error - anonymous method and method group with Func or Action
...ion of your program:
class Program
{
delegate void D1();
delegate string D2();
static string X() { return null; }
static void Y(D1 d1) {}
static void Y(D2 d2) {}
static void Main()
{
Y(X);
}
}
So let's go through it line by line.
An implicit conversion ...
Difference between List, List, List, List, and List
...u can't mix oranges and apples. You would be able to add an Object to your String list if you could pass a string list to a method that expects object lists. (And not all objects are strings)
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