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Why can't strings be mutable in Java and .NET?
...is it that they decided to make String immutable in Java and .NET (and some other languages)? Why didn't they make it mutable?
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Handling very large numbers in Python
I've been considering fast poker hand evaluation in Python. It occurred to me that one way to speed the process up would be to represent all the card faces and suits as prime numbers and multiply them together to represent the hands. To whit:
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Cosmic Rays: what is the probability they will affect a program?
...ss than the risk of cosmic rays" affecting the program, and it occurred to me that I didn't have the faintest idea what that probability is.
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ADB Shell Input Events
...? Which one should I use for inputting a character? Are the keycodes the same that we pass to both the commands?
8 Answers
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anchor jumping by using javascript
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You can get the coordinate of the target element and set the scroll position to it. But this is so complicated.
Here is a lazier way to do that:
function jump(h){
var url = location.href; //Save down the URL without hash.
location.href = "#"+h; ...
The necessity of hiding the salt for a hash
...rk we have two competing theories for salts. The products I work on use something like a user name or phone number to salt the hash. Essentially something that is different for each user but is readily available to us. The other product randomly generates a salt for each user and changes each tim...
Is it bad practice to return from within a try catch finally block?
So I came across some code this morning that looked like this:
6 Answers
6
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Python: Is it bad form to raise exceptions within __init__?
...rm to raise exceptions within __init__ ? If so, then what is the accepted method of throwing an error when certain class variables are initialized as None or of an incorrect type?
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Why does += behave unexpectedly on lists?
...or in python seems to be operating unexpectedly on lists. Can anyone tell me what is going on here?
8 Answers
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Is there a way to quickly capitalize the variable name in Eclipse
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Windows
After you press Alt+Shift+R as mentioned by kostja, you can select the text you want to change, then
Ctrl+Shift+Y for lowercase, or
Ctrl+Shift+X for uppercase.
Mac OS
Cmd+Shift+Y lowercase
Cmd+Shift+X uppercase
There is no intelligence in this. It ...