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java: (String[])List.toArray() gives ClassCastException
The following code (run in android) always gives me a ClassCastException in the 3rd line:
4 Answers
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Altering column size in SQL Server
...x on that column you'll have to drop it, then execute the alter table code and then create the index again
– Sr.PEDRO
Sep 5 '17 at 19:18
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StringUtils.isBlank() vs String.isEmpty()
...ngUtils.isEmpty(" bob ") = false
Warning: In java.lang.String.isBlank() and java.lang.String.isEmpty() work the same except they don't return true for null.
java.lang.String.isBlank() (since Java 11)
java.lang.String.isEmpty()
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Setting multiple attributes for an element at once with JavaScript
...ibute change. Accessing this.getAttribute('your-attr') for both attributes and exiting if one of them is still empty is a first solution BUT it does not handle the case where only one attribute is set, and the other one already has a previous value. But god helps this is not the question actually ob...
Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
I have a data frame df and I use several columns from it to groupby :
7 Answers
7
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Can I pass an array as arguments to a method with variable arguments in Java?
...rds compatibility.
So you should just be able to prepend extraVar to args and call String.format(format, args).
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How do you use window.postMessage across domains?
... },
false);
</script>
</body>
</html>
A and B must be something like http://domain.com
EDIT:
From another question, it looks the domains(A and B here) must have a / for the postMessage to work properly.
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Find object by id in an array of JavaScript objects
... '45').map(x => x.foo);
Side note: methods like find() or filter(), and arrow functions are not supported by older browsers (like IE), so if you want to support these browsers, you should transpile your code using Babel (with the polyfill).
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Shell script to send email [duplicate]
I am on linux machine and I monitor a process usage. Most of the time I will be away from my system and I have access to internet on my device. So I planned to write a shell-script that can mail me the output of the process.
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How to construct a std::string from a std::vector?
...only after assert(not v.empty());, since if the vector is empty, both v[0] and v.front() would invoke undefined behavior. That, aside from the syntactic simplicity of not having to use the address-of operator, is the real benefit of C++11's data() function, which works even on an empty vector.
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