大约有 44,500 项符合查询结果（耗时：0.0438秒） [XML]
Dealing with “Xerces hell” in Java/Maven?
...
There are 2.11.0 JARs (and source JARs!) of Xerces in Maven Central since 20th February 2013! See Xerces in Maven Central. I wonder why they haven't resolved https://issues.apache.org/jira/browse/XERCESJ-1454...
I've used:
<depend...
How to map atan2() to degrees 0-360
atan2(y, x) has that discontinuity at 180° where it switches to -180°..0° going clockwise.
15 Answers
...
How to check if type of a variable is string?
...
20 Answers
20
Active
...
Size-limited queue that holds last N elements in Java
...eue;
Queue<Integer> fifo = new CircularFifoQueue<Integer>(2);
fifo.add(1);
fifo.add(2);
fifo.add(3);
System.out.println(fifo);
// Observe the result:
// [2, 3]
If you are using an older version of the Apache commons collections (3.x), you can use the Circ...
.NET Format a string with fixed spaces
...
482
This will give you exactly the strings that you asked for:
string s = "String goes here";
strin...
How do I use a custom Serializer with Jackson?
...
answered Aug 23 '11 at 22:39
StaxManStaxMan
98.6k2828 gold badges184184 silver badges223223 bronze badges
...
How to loop through all but the last item of a list?
...
324
for x in y[:-1]
If y is a generator, then the above will not work.
...
How much of a git sha is *generally* considered necessary to uniquely identify a change in a given c
...
233
This question is actually answered in Chapter 7 of the Pro Git book:
Generally, eight to t...
What is the ideal data type to use when storing latitude / longitude in a MySQL database?
...
21 Answers
21
Active
...
Convert python datetime to epoch with strftime
...s since epoch you could do it explicitly:
>>> (datetime.datetime(2012,04,01,0,0) - datetime.datetime(1970,1,1)).total_seconds()
1333238400.0
In Python 3.3+ you can use timestamp() instead:
>>> datetime.datetime(2012,4,1,0,0).timestamp()
1333234800.0
Why you should not use d...