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How to count the number of occurrences of an element in a List
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I'm pretty sure the static frequency-method in Collections would come in handy here:
int occurrences = Collections.frequency(animals, "bat");
That's how I'd do it anyway. I'm pretty sure this is jdk 1.6 straight up.
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How to do associative array/hashing in JavaScript
...te between keys obj1 and obj2; they're both converted to string and just become something like "Object". Total fail, and makes type-safe serialization with references and cyclic-references intact difficult or non-performant in JavaScript. It's easy in Flash/AS3.
– Triynko
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Firebug says “No Javascript on this page”, even though JavaScript does exist on the page
...s for updating us here, much appreciated.
– David Newcomb
Nov 22 '16 at 22:12
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This should be th...
PostgreSQL - how to quickly drop a user with existing privileges
...ption of this.
Addition:
Apparently, trying to drop a user by using the commands mentioned here will only work if you are executing them while being connected to the same database that the original GRANTS were made from, as discussed here:
https://www.postgresql.org/message-id/83894A1821034948BA...
Placement of the asterisk in pointer declarations
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Whitespace is insignificant to a C compiler (ignoring the preprocessor). So no matter how many spaces there are or aren't between the asterisk and its surroundings, it has exactly the same meaning.
– ephemient
Oct 7 '08 ...
How do I concatenate const/literal strings in C?
... *strcat(char *dest, const char *src);
Here is an example from cplusplus.com:
char str[80];
strcpy(str, "these ");
strcat(str, "strings ");
strcat(str, "are ");
strcat(str, "concatenated.");
For the first parameter, you need to provide the destination buffer itself. The destination buffer must...
Check if a Bash array contains a value
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Shellcheck complains about this solution, SC2199 and SC2076. I couldn't fix the warnings without breaking the functionality. Any thoughts about that other than disabling shellcheck for that line?
– Ali Essam
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How to pass all arguments passed to my bash script to a function of mine? [duplicate]
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The $@ variable expands to all command-line parameters separated by spaces. Here is an example.
abc "$@"
When using $@, you should (almost) always put it in double-quotes to avoid misparsing of arguments containing spaces or wildcards (see below). This ...
How to pass the value of a variable to the stdin of a command?
...ld be somewhat secure i.e. does not pass secure data through parameters of commands and preferably does not use temporary files. How can I pass a variable to the stdin of a command? Or, if it's not possible, how to correctly use temporary files for such task?
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What is a daemon thread in Java?
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