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Concatenating null strings in Java [duplicate]
...ng Conversion", requires this operation to succeed without failure:
...Now only reference values need to be considered. If the reference is null, it is converted to the string "null" (four ASCII characters n, u, l, l). Otherwise, the conversion is performed as if by an invocation of the toString...
Change text color of one word in a TextView
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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?) yo...
How to trigger a file download when clicking an HTML button or JavaScript
This is crazy but I don't know how to do this, and because of how common the words are, it's hard to find what I need on search engines. I'm thinking this should be an easy one to answer.
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How can I round down a number in Javascript?
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I have updated the answer so that the capitalization is now correct.
– chasen
Jun 8 '12 at 18:02
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Is there a visual profiler for Python? [closed]
I use cProfile now but I find it tedious to write pstats code just to query the statistics data.
12 Answers
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How to run mvim (MacVim) from Terminal?
... A year ago that was what you got when you downloaded MacVim. Now it's a.tbz file, but the script is still there.
– Gordon Robertson
Mar 9 '11 at 10:39
6
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How to programmatically set maxLength in Android TextView?
...om 10 to 20, but as in code we add filter its remain set MaxLength 10 bcus now in array we have 10,20 two max lengths.
– Nikhil
Jun 29 at 14:35
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How to have jQuery restrict file types on upload?
...t button through a JavaScript function already so I really just need to know how to check for the file types before submit or alert.
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How to remove trailing whitespaces with sed?
...kely forget to escape the t :) \t is a tab, for those who may not already know.
– Sean Allred
Dec 12 '14 at 19:27
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Best way to give a variable a default value (simulate Perl ||, ||= )
... = $bar ?: $baz;
Which assigns $bar if it's not an empty value (I don't know how this would be different in PHP from Perl), otherwise $baz, and is the same as this in Perl and older versions of PHP:
$foo = $bar ? $bar : $baz;
But PHP does not have a compound assignment operator for this (that i...