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What causes javac to issue the “uses unchecked or unsafe operations” warning
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This comes up in Java 5 and later if you're using collections without type specifiers (e.g., Arraylist() instead of ArrayList<String>()). It means that the compiler can't check that you're using the collection in a type-safe way, using generics.
To ge...
Using XPATH to search text containing
...example, you
may need to type text in a field like
this: "foo ". But if you simply
write <td>foo </td> in your
Selenese test case, we'll replace your
extra spaces with just one space.
This problem has a simple workaround.
We've defined a variable in Selenese,
${spa...
What is the meaning of polyfills in HTML5?
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I think the word Polyfills came up after HTML5. Is Shim different than Polyfills?
– Jitendra Vyas
Aug 17 '11 at 2:37
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Exactly what is a “third party”? (And who are the first and second party?)
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If you are developing software for a client, then there is a contract between you/your company, and the client/their company. These are the two parties to the contract. Anyone else, not bound by the contract, is a third party...
How can I give the Intellij compiler more heap space?
... I know this is slightly off-topic but might save someone some hair if they come across this. I was having the same problem, but mine stemmed from when I was doing a mvn install in IntelliJ. The solution was to modify the Settings | Maven | Runner | **VM Options** I must have tried every o...
Calling a Method From a String With the Method's Name in Ruby
...ully grok'd it I ran the FileUtils.send("load") and it ran my function. so if I understand this correctly by creating functions in "global" am I adding the methods onto the root object? or not?
– BuddyJoe
Sep 10 '09 at 21:50
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What is the JavaScript >>> operator and how do you use it?
...r.
So doing a bitwise operation with no actual effect, like a rightward-shift of 0 bits >>0, is a quick way to round a number and ensure it is in the 32-bit int range. Additionally, the triple >>> operator, after doing its unsigned operation, converts the results of its calculation t...
Best way to repeat a character in C#
... It may not be faster, but it can save on memory allocations (pressure) if you specify the correct capacity up front, and that can be as important as the micro benchmark of profiling this.
– wekempf
Apr 5 '16 at 13:03
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CSS /JS to prevent dragging of ghost image?
...JavaScript code" anyway, so it's not like you couldn't do it in the markup if you had the option of editing your markup.
– BoltClock♦
Aug 8 '13 at 11:49
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Why does ~True result in -2?
... "customized" versions of the integers 1 and 0 that only print themselves differently. They are subclasses of the integer type int.
So they behave exactly as 1 and 0, except that bool redefines str and repr to display them differently.
>>> type(True)
<class 'bool'>
>>> isin...