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Convert array of strings into a string in Java
...arr) {
builder.append(s);
}
String str = builder.toString();
(Java 8 and above):
String str = String.join(",", arr);
And if you're coming from the Android angle:
String str = TextUtils.join(",", arr);
You can modify the above depending on what characters, if any, you want in between stri...
Getting a timestamp for today at midnight?
...bout getting a timestamp in php for today at midnight. Say it's monday 5PM and I want the Timestamp for Monday(today) at midnight(12 am) which already has happened.
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PHP json_decode() returns NULL with valid JSON?
... I've been using the special characters since I started the application and there were no problems before. Locally, the JSON decoding works perfectly. On my server, it doesn't. And I can't call json_last_error() because it's PHP 5.2.9. That function appears on PHP 5.3.0.
– J...
What does string::npos mean in this code?
...people think they can convert that into < 0 which is NOT the same thing and will not work.
– Andy Dent
Mar 26 '12 at 7:56
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What open source C++ static analysis tools are available? [closed]
...ry good open source static analysis tools such as FindBugs , Checkstyle and PMD . Those tools are easy to use, very helpful, runs on multiple operating systems and free .
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Default value in Go's method
...
Also this discussion with official statement and this related question.
– nemo
Oct 26 '13 at 23:13
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Python __call__ special method practical example
... I can use this special method, because one can simply create a new method and perform the same operation done in __call__ method and instead of calling the instance, you can call the method.
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Returning anonymous type in C#
I have a query that returns an anonymous type and the query is in a method. How do you write this:
15 Answers
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MongoDB Many-to-Many Association
...34000000000aa9","5783300334000000000aa943","6c6793300334001000000006"]
}
and set up the roles like:
{_id:"6c6793300334001000000006"
,rolename:"Engineer"
}
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How to limit the maximum value of a numeric field in a Django model?
...as various numeric fields available for use in models, e.g. DecimalField and PositiveIntegerField . Although the former can be restricted to the number of decimal places stored and the overall number of characters stored, is there any way to restrict it to storing only numbers within a certain ...