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How to check if BigDecimal variable == 0 in java?
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Use compareTo(BigDecimal.ZERO) instead of equals():
if (price.compareTo(BigDecimal.ZERO) == 0) // see below
Comparing with the BigDecimal constant BigDecimal.ZERO avoids having to construct a new BigDecimal(0) every execution.
FYI, BigDecimal also has constants BigDecimal.O...
How to find out if an installed Eclipse is 32 or 64 bit version?
How can I find out if a specific Eclipse instance on my (Windows 7) PC is the 32-bit or 64-bit version?
5 Answers
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Change Active Menu Item on Page Scroll?
... menuItems.map(function(){
var item = $($(this).attr("href"));
if (item.length) { return item; }
});
// Bind to scroll
$(window).scroll(function(){
// Get container scroll position
var fromTop = $(this).scrollTop()+topMenuHeight;
// Get id of current scroll item
var cur...
How to properly check if std::function is empty in C++11?
I was wondering how to properly check if an std::function is empty. Consider this example:
3 Answers
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Finding local IP addresses using Python's stdlib
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This appears to only return a single IP address. What if the machine has multiple addresses?
– Jason R. Coombs
Oct 23 '09 at 14:39
29
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Regex doesn't work in String.matches()
...tches ALL the input. Unfortunately, other languages have followed suit :(
If you want to see if the regex matches an input text, use a Pattern, a Matcher and the .find() method of the matcher:
Pattern p = Pattern.compile("[a-z]");
Matcher m = p.matcher(inputstring);
if (m.find())
// match
If...
Paging UICollectionView by cells, not screen
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for anyone asking about this in swift 5: collectionView.isPagingEnabled = true does this!
– Mohammad Bashir Sidani
Apr 14 at 20:19
add...
A non-blocking read on a subprocess.PIPE in Python
...standard output. Is there a way to make .readline non-blocking or to check if there is data on the stream before I invoke .readline ? I'd like this to be portable or at least work under Windows and Linux.
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How do I measure execution time of a command on the Windows command line?
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If you are using Windows 2003 (note that windows server 2008 and later are not supported) you can use The Windows Server 2003 Resource Kit, which contains timeit.exe that displays detailed execution stats. Here is an example...
_DEBUG vs NDEBUG
Which preprocessor define should be used to specify debug sections of code?
6 Answers
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