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How to check type of variable in Java?
...instanceof operator only determines the datatype of the object referred to by the variable. It does not determine the datatype of the actual VARIABLE as originally requested.
– GrantRobertson
Jul 25 '16 at 4:16
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Breakpoints are crossed out, how can I make them valid?
...here may be a hot-key defined as well, all of which you may have triggered by accident.
Take a look at the Run -> Skip All Breakpoints.
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Can I compile all .cpp files in src/ to .o's in obj/, then link to binary in ./?
...th GCC in can be done in a single pass as a side effect of the compilation by adding -MMD flag to CXXFLAGS and -include $(OBJ_FILES:.o=.d) to the end of the makefile body:
CXXFLAGS += -MMD
-include $(OBJ_FILES:.o=.d)
And as guys mentioned already, always have GNU Make Manual around, it is very ...
Fully backup a git repo?
... the result is still optimized, it's still a backup (2) is already covered by git itself. -- The point I'd like to give is, that if git clone already cover the relevant points, for what you need a different tool? Although I also prefer git bundle I don't think my answer is wrong, or invalid. You can...
git: difference between “branchname” and “refs/heads/branchname”
...bolic ref name. E.g. master typically means the commit object
referenced by refs/heads/master. If you happen to have both
heads/master and tags/master, you can explicitly say heads/master to
tell Git which one you mean. When ambiguous, a <refname> is
disambiguated by taking the first m...
MySQL CONCAT returns NULL if any field contain NULL
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convert the NULL values with empty string by wrapping it in COALESCE
SELECT CONCAT(COALESCE(`affiliate_name`,''),'-',COALESCE(`model`,''),'-',COALESCE(`ip`,''),'-',COALESCE(`os_type`,''),'-',COALESCE(`os_version`,'')) AS device_name
FROM devices
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How do I make UILabel display outlined text?
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I was able to do it by overriding drawTextInRect:
- (void)drawTextInRect:(CGRect)rect {
CGSize shadowOffset = self.shadowOffset;
UIColor *textColor = self.textColor;
CGContextRef c = UIGraphicsGetCurrentContext();
CGContextSetLineWidt...
Is there a command like “watch” or “inotifywait” on the Mac?
...nge to that directory is received, the specified
shell command is executed by /bin/bash
If you're on GNU/Linux,
inotifywatch (part of the
inotify-tools package on most distributions) provides similar
functionality.
Update: fswatch can now be used across many platforms including BSD, Debian, and Wi...
Delete file from internal storage
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@user661543 What's full path returned by the ih.getImgPath()? What you'd passed as an argument to delete file? If the method above didn't work then most likely stored your file out of application package. Or you might have passed wrong file name as an argument.
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Using variables inside a bash heredoc
...ion is the default behavior inside of here-docs. You disable that behavior by quoting the label (with single or double quotes).
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