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Why java.lang.Object is not abstract? [duplicate]
...ve Java). However, I'm more of the opinion that hashCode(), equals() and clone() belong on separate, opt-in abstractions (i.e. interfaces). The other methods, wait(), notify(), finalize(), etc. are sufficiently complicated and/or are native, so it's best they're already implemented, and would not be...
Pass array to ajax request in $.ajax() [duplicate]
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yes...that worked..thanks..one more thing can be done ...that is initialize info = {}; then data: info,
– Poonam Bhatt
Jan 18 '12 at 4:45
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How do I watch a file for changes?
... exactly what you want (if you exchange the path of the directory with the one of the file you want to watch).
Otherwise, polling will probably be the only really platform-independent option.
Note: I haven't tried any of these solutions.
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How to get the current branch name in Git?
...e with Notepad++ and Netbeans. Just git bash (and Probobly Vim) and I mentioned that. I'm tring to work with other Ide's and text editors that arent command line.
– mike628
Jun 5 '11 at 20:30
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Will the base class constructor be automatically called?
...his by printing out the age of the customer after construction (link to ideone with a demo).
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How can I calculate the number of lines changed between two commits in git?
...ctually introduce changes), as well as the pretty output options (--pretty=oneline, short, medium, full...).
Here's a one-liner to get total changes instead of per-commit changes from git log (change the commit selection options as desired - this is commits by you, from commit1 to commit2):
git lo...
Subqueries vs joins
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A "correlated subquery" (i.e., one in which the where condition depends on values obtained from the rows of the containing query) will execute once for each row. A non-correlated subquery (one in which the where condition is independent of the containing q...
Remove tracking branches no longer on remote
...y to edit the list before deleting branches, you could do the following in one line:
git branch --merged >/tmp/merged-branches && \
vi /tmp/merged-branches && xargs git branch -d </tmp/merged-branches
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What is the worst real-world macros/pre-processor abuse you've ever come across?
...den exit from his chair to do a quick ten pushups. He explained this last one as "Compiler found error in code. This is punishment".
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edited May 24 '10 at 20:05
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Round a double to 2 decimal places [duplicate]
...o, use this instead
(Adapted from this answer by Louis Wasserman and this one by Sean Owen.)
public static double round(double value, int places) {
if (places < 0) throw new IllegalArgumentException();
BigDecimal bd = BigDecimal.valueOf(value);
bd = bd.setScale(places, RoundingMode...