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What does .class mean in Java?
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object.getClass() returns the class of the given object.
For example:
String string = "hello";
System.out.println(string.getClass().toString());
This will output:
class java.lang.String
This is the class of the string object :)
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How to allocate aligned memory only using the standard library?
...specialized things, like playing with graphics systems, they can need more stringent alignment than the rest of the system — hence questions and answers like this.)
The next step is to convert the void pointer to a char pointer; GCC notwithstanding, you are not supposed to do pointer arithmetic o...
Count the number of occurrences of a character in a string in Javascript
I need to count the number of occurrences of a character in a string.
33 Answers
33
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Why does Boolean.ToString output “True” and not “true”
...facts about it ;)
First, this is what it says in MSDN about the Boolean.ToString() method:
Return Value
Type: System.String
TrueString if the value of this
instance is true, or FalseString if
the value of this instance is false.
Remarks
This method returns the
constan...
T-SQL Cast versus Convert
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Convert has a style parameter for date to string conversions.
http://msdn.microsoft.com/en-us/library/ms187928.aspx
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Git: How to remove file from historical commit?
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You can use git-extras tool. The obliterate command completely remove a file from the repository, including past commits and tags.
https://github.com/tj/git-extras/blob/master/Commands.md
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How do you sort an array on multiple columns?
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A good way to sort on many fields that are strings is to use toLocaleCompare and the boolean operator ||.
Something like:
// Sorting record releases by name and then by title.
releases.sort((oldRelease, newRelease) => {
const compareName = oldRelease.name.local...
Iterating through a list in reverse order in java
...() {
throw new UnsupportedOperationException();
}
}
List<String> list = new ArrayList<String>();
list.add("A");
list.add("B");
list.add("C");
list.add("D");
list.add("E");
for (String s : new ReverseIterator<String>(list)) {
System.out.println(s);
}
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multiple prints on the same line in Python
...on accepts an end parameter which defaults to "\n". Setting it to an empty string prevents it from issuing a new line at the end of the line.
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How to get the current time as datetime
...ate?
Compared to Nate’s answer, you’ll get numbers with this one, not strings… pick your choice!
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