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explicit casting from super class to subclass
...[] args)
{
Dog d = getMeAnAnimal();// ERROR: Type mismatch: cannot convert Animal to Dog
Dog d = (Dog)getMeAnAnimal(); // Downcast works fine. No ClassCastException :)
d.eat();
}
private static Animal getMeAnAnimal()
{
Animal animal = new Dog();
return animal;
}
However, ...
Selenium WebDriver: Wait for complex page with JavaScript to load
...ge and could prolong the test significantly.
You never know what the right interval is. The script might be downloading something big that takes more than 500 ms. There are several scripts on our company's internal page that take several seconds in IE. Your computer may be temporarily short on resou...
The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communicat
...happen on your server side, and you didn't catch and handle it, and didn't convert it to a SOAP fault, either.
Now since the server side "bombed" out, the WCF runtime has "faulted" the channel - e.g. the communication link between the client and the server is unusable - after all, it looks like you...
efficient circular buffer?
...s answer is very misleading - Python's deque appears to be quite fast, but converting from and to numpy arrays slows it down considerably in the benchmarks you link to.
– xitrium
Dec 11 '19 at 18:09
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wkhtmltopdf: cannot connect to X server
I have been using wkthmltopdf to convert html to pdf documents on-the-fly on my linux web server. The program originally needed X11 or similar X server to run correctly, but through many requests by developers to have this run on servers without GUI, I am pretty sure it runs a virtual X server in...
Java 8 method references: provide a Supplier capable of supplying a parameterized result
...hrow. Otherwise you will get an error message like MyException cannot be converted to java.lang.RuntimeException
Update:- This was an issue with an older version of JDK. I don't see this issue with the latest versions.
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HTML-encoding lost when attribute read from input field
...finements - they appear to be handling an obscure Unicode issue as well as converting all non-alphanumeric characters to entities. I was under the impression the latter was not necessary as long as you have an UTF8 charset specified for your document.
I will note that (4 years later) Django still d...
Padding is invalid and cannot be removed?
...
My issue was that the string to be decrypted was being converted to lower case before I tried to decrypt it. I was obsessing with the padding and ciphers and all that stuff, but it turned out it was just bad input. Sometimes you just need to take a step back!
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How to get current time with jQuery
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Convert a Date object to an string, using one of Date.prototype's conversion getters, for example:
var d = new Date();
d+''; // "Sun Dec 08 2013 18:55:38 GMT+0100"
d.toDateString(); // "Sun Dec 08 2013"...
What Vim command(s) can be used to quote/unquote words?
...mments from current position to the end of the line; which helped me while converting some MSDOS scripts to bash.
– ILMostro_7
Mar 26 '14 at 7:57
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