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How to remove single character from a String
...other mutator methods.
Just delete the characters that you need to delete and then get the result as follows:
String resultString = sb.toString();
This avoids creation of unnecessary string objects.
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last day of month calculation
... of the month as well, as that part works now. thanks again for your time and effort
– OakvilleWork
Feb 22 '12 at 15:33
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Android View.getDrawingCache returns null, only null
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I was having this problem also and found this answer:
v.setDrawingCacheEnabled(true);
// this is the important code :)
// Without it the view will have a dimension of 0,0 and the bitmap will be null
v.measure(MeasureSpec.makeMeasureSpec(0, Me...
Display number with leading zeros
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In Python 2 (and Python 3) you can do:
print "%02d" % (1,)
Basically % is like printf or sprintf (see docs).
For Python 3.+, the same behavior can also be achieved with format:
print("{:02d}".format(1))
For Python 3.6+ the same...
How to represent empty char in Java Character class
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A null char literal is still a character and takes space in storage.
– Jimmy T.
Jun 15 '14 at 13:50
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HttpServletRequest to complete URL
...king a defensive copy that's a very good way to introduce strange behavior and bugs in other parts of code that expect it in it's original form.
– Ken Blair
May 22 '12 at 16:53
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Difference between Big-O and Little-O Notation
...it still has a lim sup: 4.)
I recommend memorizing how the Big-O notation converts to asymptotic comparisons. The comparisons are easier to remember, but less flexible because you can't say things like nO(1) = P.
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Count number of occurences for each unique value
...ncy? I have the exact same problem, but my table has roughly 20000 entries and I'd like to know how frequent the most common entries are.
– Torvon
Dec 1 '14 at 16:25
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What is the difference between “JPG” / “JPEG” / “PNG” / “BMP” / “GIF” / “TIFF” Image?
...pha Transparency for PNG-8 files. (Damn you, Photoshop!) There are ways to convert Photoshop PNG-24 to PNG-8 files while retaining their transparency, though. One method is PNGQuant, another is to save your files with Fireworks.
PNG-24 - Lossless / Direct
PNG-24 is a great format that combines L...
Separate REST JSON API server and client? [closed]
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I'm currently working on converting a huge CMS from option 1 to option 3, and it's going well. We chose to render the markup server-side because SEO is a big deal to us, and we want the sites to perform well on mobile phones.
I'm using node.js for t...