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Programmer Puzzle: Encoding a chess board state throughout a game
...h this I've determined that the only way to store a complete game state is by storing a complete list of moves. Read on for why. So I use a slightly simplified version of the problem for piece layout.
The Problem
This image illustrates the starting Chess position. Chess occurs on an 8x8 board wi...
Read String line by line
Given a string that isn't too long, what is the best way to read it line by line?
11 Answers
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What's valid and what's not in a URI query?
...ed Characters
URIs include components and subcomponents that are delimited by characters in the "reserved" set. These characters are called "reserved" because they may (or may not) be defined as delimiters by the generic syntax, by each scheme-specific syntax, or by the implementation-specific synta...
Why is Class.newInstance() “evil”?
...#newInstance()):
Note that this method propagates any exception thrown by the nullary constructor, including a checked exception. Use of this method effectively bypasses the compile-time exception checking that would otherwise be performed by the compiler. The Constructor.newInstance method avoi...
Most simple but complete CMake example
Somehow I am totally confused by how CMake works. Every time I think that I am getting closer to understand how CMake is meant to be written, it vanishes in the next example I read. All I want to know is, how should I structure my project, so that my CMake requires the least amount of maintainance i...
What's the rationale for null terminated strings?
...ts strings much
like vectors of integers and
supplements general rules by a few
conventions. In both BCPL and B a
string literal denotes the address of
a static area initialized with the
characters of the string, packed into
cells. In BCPL, the first packed byte
contains the number o...
Cannot refer to a non-final variable inside an inner class defined in a different method
...ass object tries to access the variables after they have been cleaned up.
By making lastPrice and price final, they are not really variables anymore, but constants. The compiler can then just replace the use of lastPrice and price in the anonymous class with the values of the constants (at compile ...
Java: Difference between the setPreferredSize() and setSize() methods in components
...ents as expected if a layout manager is present; most layout managers work by getting the preferred (as well as minimum and maximum) sizes of their components, then using setSize() and setLocation() to position those components according to the layout's rules.
For example, a BorderLayout tries to ma...
How do I Geocode 20 addresses without receiving an OVER_QUERY_LIMIT response?
...hen saving the locations -- but it also means :
You'll be able to search by geographical coordinates
i.e. "I want a list of points that are near where I'm now"
Displaying the map will be a lot faster
Even with more than 20 locations on it
Oh, and, also (last but not least) : this will work ;...
What's a correct and good way to implement __hash__()?
...
As @loved.by.Jesus's answer below mentions, hash method should not be defined/overridden for a mutable object (defined by default and uses id for equality and comparison).
– Mr Matrix
Jan 5 at 20:...