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Is there a way to instantiate a class by name in Java?
...ewInstance() method on this object:
Class<?> clazz = Class.forName("com.foo.MyClass");
Constructor<?> constructor = clazz.getConstructor(String.class, Integer.class);
Object instance = constructor.newInstance("stringparam", 42);
Both methods are known as reflection. You will typically...
Bash conditionals: how to “and” expressions? (if [ ! -z $VAR && -e $VAR ])
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This solution works even in strictly POSIX-compliant shells and therefore also in bash; however, to take full advantage of "bashisms", see @paxdiablo's answer.
– mklement0
Apr 1 '14 at 3:52
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Optimize Font Awesome for only used classes
I am using Font Awesome Sass file https://github.com/FortAwesome/Font-Awesome/blob/master/sass/font-awesome.sass to make it _font-awesome.sass so I can @import in my Sass project. I am also using http://middlemanapp.com/ to convert Sass to Css . Questions:
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Why can lambdas be better optimized by the compiler than plain functions?
...tion) Nicolai Josuttis states that lambdas can be better optimized by the compiler than plain functions.
2 Answers
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How to set selected item of Spinner by value, not by position?
...Spinner, and it contains as one of its choices: "some value".
To find and compare the position of "some value" in the Spinner use this:
String compareValue = "some value";
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.select_state, android.R.layout.simple...
How to sort in mongoose?
...work, but .sort([['date', -1]]) will work. See this answer: stackoverflow.com/a/15081087/404699
– steampowered
Apr 30 '16 at 21:52
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Can I get a list of files marked --assume-unchanged?
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My OS apparently has a weird collation setup, so Matt's command didn't work for me. Here's what I added under the [alias] section of my .gitconfig: ignored = !git ls-files -v | grep "^[[:lower:]]"
– Abe Voelker
Sep 3 '11 at 22:55
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Is there an equivalent to e.PageX position for 'touchstart' event as there is for click event?
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What is the expected syntax for checking exception messages in MiniTest's assert_raises/must_raise?
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Query for array elements inside JSON type
...ray_elements().
Better yet, use the new "contains" operator @> (best in combination with a matching GIN index on the expression data->'objects'):
CREATE INDEX reports_data_gin_idx ON reports
USING gin ((data->'objects') jsonb_path_ops);
SELECT * FROM reports WHERE data->'objects' @> ...