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What is the difference between the states selected, checked and activated in Android?
I'd like to know what differs those states. I didn't find any webpage clarifying this.
3 Answers
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Why is @autoreleasepool still needed with ARC?
...ol is nothing to do with ARC.
Update:
I took a look into the internals of what's going on here and wrote it up on my blog. If you take a look there then you will see exactly what ARC is doing and how the new style @autoreleasepool and how it introduces a scope is used by the compiler to infer infor...
Can I convert long to int?
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Just do (int)myLongValue. It'll do exactly what you want (discarding MSBs and taking LSBs) in unchecked context (which is the compiler default). It'll throw OverflowException in checked context if the value doesn't fit in an int:
int myIntValue = unchecked((int)myLon...
What are the recommendations for html tag?
...r to use the <base> tag or not, you need to understand how it works, what it can be used for and what the implications are and finally outweigh the advantages/disadvantages.
The <base> tag mainly eases creating relative links in templating languages as you don't need to worry about th...
Is it a bad practice to use an if-statement without curly braces? [closed]
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"ambiguity" is the wrong term. There is no ambiguity whatsoever in how the parser will see this: the else binds greedily to the nearest, innermost if. The problem arises where C or similar languages are being coded by people who don't know this, don't think about it, or didn't ...
In C# what is the difference between a destructor and a Finalize method in a class?
What is the difference, if there is one, between a destructor and a Finalize method in a class?
3 Answers
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What is the difference between DSA and RSA?
... x
compute y = g power x(mod p)
DSA key generation is related to, but somewhat more complex than El Gamal.
Mostly because of the use of the secondary 160-bit modulus q used to help
speed up calculations and reduce the size of the resulting signature.
DSA Signature Creation and Verification
to ...
What Xcode keyboard shortcuts do you use regularly? [closed]
What Xcode keyboard shortcuts do you use regularly?
16 Answers
16
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What really happens in a try { return x; } finally { x = null; } statement?
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Isn't this exactly what ocdedio said: the finally is executed after the calculation of the return value and before really returning from the funczion???
– mmmmmmmm
Jan 7 '09 at 20:04
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Disable browser's back button
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Note that making the page un-cacheable does not achieve what the OP wanted: to disable visiting pages using the back button. Even if a browser obeys no-cache when using the back button (which browsers are not obliged to do AFAIK) they still provide a way to reload that page (usua...