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Real World Example of the Strategy Pattern
... of comments, etc), and in case management doesn't yet know exactly how to order, and may want to experiment with different orderings at a later date. You make an interface (IOrderAlgorithm or something) with an order method, and let an Orderer-object delegate the ordering to a concrete implementati...
Case insensitive string as HashMap key
...ing, String> nodeMap =
new TreeMap<>(String.CASE_INSENSITIVE_ORDER);
That's really all you need.
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Get: TypeError: 'dict_values' object does not support indexing when using python 3.2.3 [duplicate]
...ersion of this implementation is UNSAFE. You should not rely on dictionary order. For example doing d=dict(**d) may change the iteration order of keys.
– xaviersjs
Oct 2 '19 at 0:08
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Why are iframes considered dangerous and a security risk?
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As soon as you're displaying content from another domain, you're basically trusting that domain not to serve-up malware.
There's nothing wrong with iframes per se. If you control the content of the iframe, they're perfectly safe.
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How do I find the caller of a method using stacktrace or reflection?
...f the
caller is only interested in the top few frames on the stack.
In order to find the immediate caller's class, first obtain a StackWalker:
StackWalker walker = StackWalker
.getInstance(StackWalker.Option.RETAIN_CLASS_REFERENCE);
Then either call the getCallerCla...
How do I set up IntelliJ IDEA for Android applications?
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How to get the contents of a webpage in a shell variable?
...get google.com -q -O -)
echo $content
We use the -O option of wget which allows us to specify the name of the file into which wget dumps the page contents. We specify - to get the dump onto standard output and collect that into the variable content. You can add the -q quiet option to turn off's wg...
Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
...ostreams to OS-specific I/O APIs and custom buffer management does give an order of magnitude improvement.
4 Answers
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Cannot create an array of LinkedLists in Java…?
...e the row map type a TreeMap, and same for traversing the columns in index order, but if you don't need those cases, HashMap is quicker than TreeMap. Helper methods to get and set an arbitrary cell, handling unset null values, would be useful, of course.
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How do I remove repeated elements from ArrayList?
...t);
yourList.clear();
yourList.addAll(set);
Of course, this destroys the ordering of the elements in the ArrayList.
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