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How to use WeakReference in Java and Android development?
...lems: WeakHashMap is not a cache!
Tom is right that there have been complaints about poor Netbeans performance due to WeakHashMap caching.
I still think it would be a good learning experience to implement a cache with WeakHashMap and then compare it against your own hand-rolled cache implemented...
Git and Mercurial - Compare and Contrast
...erge by a series of two-parent merges, this might cause complications when converting between Mercurial and Git repositories.
As far as I know Mercurial doesn't have equivalent of annotated tags (tag objects) from Git. A special case of annotated tags are signed tags (with PGP / GPG signature); equi...
Correct way to delete cookies server-side
...ntication process I create a unique token when a user logs in and put that into a cookie which is used for authentication.
...
Stack vs heap allocation of structs in Go, and how they relate to garbage collection
...-programming where the only thing that lives on the stack are references/pointers to objects on the heap.
5 Answers
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Why is C so fast, and why aren't other languages as fast or faster? [closed]
... for uninitialized variable values
Check for memory leaks
Check for null pointer dereference
When you index into an array, in Java it takes some method call in the virtual machine, bound checking and other sanity checks. That is valid and absolutely fine, because it adds safety where it's due. But ...
Abusing the algebra of algebraic data types - why does this work?
... to blatantly disregard that for the sake of simplicity.
A few initial points:
Note that "union" is probably not the best term for A+B here--that's specifically a disjoint union of the two types, because the two sides are distinguished even if their types are the same. For what it's worth, the m...
List of Delphi language features and version in which they were introduced/deprecated
Before I begin, I would like to point out that I have honestly and genuinely searched repeatedly and exhaustively via Google for such a thing, and been unable to find one.
...
Is “inline” without “static” or “extern” ever useful in C99?
...re of these optimizations.)
Visibility is assured if the function has internal linkage, or if it has external linkage and the call
is in the same translation unit as the external definition. In these cases, the presence of the
inline keyword in a declaration or definition of the function ha...
What is the purpose of a stack? Why do we need it?
...ntime another compiler called the JIT (Just In Time) compiler turns the IL into actual machine code that can execute.
So first let's answer the question "why have MSIL at all?" Why not just have the C# compiler write out machine code?
Because it is cheaper to do it this way. Suppose we didn't do...
Difference between
...ber (in this context)
List<? extends Number> foo3 = new ArrayList<Integer>(); // Integer extends Number
List<? extends Number> foo3 = new ArrayList<Double>(); // Double extends Number
Reading - Given the above possible assignments, what type of object are you guaranteed t...