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TreeMap sort by value
I want to write a comparator that will let me sort a TreeMap by value instead of the default natural ordering.
8 Answers
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What is the difference between call and apply?
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The difference is that apply lets you invoke the function with arguments as an array; call requires the parameters be listed m>ex m>plicitly. A useful mnemonic is "A for array and C for comma."
See MDN's documentation on apply and call.
Pseudo syntax:
theFunction.apply(valueForThis, arrayOfArg...
How to set specific java version to Maven
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So I added a toolchain.xml file to my ~/.m2/ folder with following content:
<toolchains xmlns="http://maven.apache.org/TOOLCHAINS/1.1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/TOOLCHAINS/1.1.0 http://maven.apache.org/xsd/toolcha...
Creating an abstract class in Objective-C
I'm originally a Java programmer who now works with Objective-C. I'd like to create an abstract class, but that doesn't appear to be possible in Objective-C. Is this possible?
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Array vs. Object efficiency in JavaScript
I have a model with possibly thousands of objects. I was wondering what would be the most efficient way of storing them and retrieving a single object once I have it's id. The id's are long numbers.
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Immutability of Strings in Java
Consider the following m>ex m>ample.
26 Answers
26
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What is the difference between memoization and dynamic programming?
What is the difference between memoization and dynamic programming? I think dynamic programming is a subset of memoization. Is it right?
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What's the point of const pointers?
I'm not talking about pointers to const values, but const pointers themselves.
17 Answers
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How do I check if a string is unicode or ascii?
...ll this method over a class 'bytes', you would get a 'OK' with print("utf8 content:", html.decode()), for m>ex m>ample.
– RicarHincapie
Aug 24 at 19:54
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Rails raw SQL m>ex m>ample
...e in rails? Because When I deploy this code in heroku,there is a request timeout error.I think this will be faster if I use raw sql.
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