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What does .class mean in Java?
What does .class mean in Java? For example, if I created a class called Print . What does Print.class return?
7 Answer...
Replace all non-alphanumeric characters in a string
I have a string with which i want to replace any character that isn't a standard character or number such as (a-z or 0-9) with an asterisk. For example, "h^&ell`.,|o w]{+orld" is replaced with "h*ell*o*w*orld". Note that multiple characters such as "^&" get replaced with one asterisk. How would I go...
How to split a string in shell and get the last field
Suppose I have the string 1:2:3:4:5 and I want to get its last field ( 5 in this case). How do I do that using Bash? I tried cut , but I don't know how to specify the last field with -f .
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belongs_to through associations
Given the following associations, I need to reference the Question that a Choice is attached through from the Choice model. I have been attempting to use belongs_to :question, through: :answer to perform this action.
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git visual diff between branches
This answer is great for seeing a visual diff between two files that are checked into git:
How do I view 'git diff' output with a visual diff program?
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Load data from txt with pandas
I am loading a txt file containig a mix of float and string data. I want to store them in an array where I can access each element. Now I am just doing
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Underscore vs Double underscore with variables and methods [duplicate]
Somebody was nice enough to explain to me that __method() mangles but instead of bothering him further since there are a lot of other people who need help I was wondering if somebody could elaborate the differences further.
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How exactly does __attribute__((constructor)) work?
It seems pretty clear that it is supposed to set things up.
5 Answers
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How to set thousands separator in Java?
How to set thousands separator in Java?
I have String representation of a BigDecimal that I want to format with a thousands separator and return as String.
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Auto reloading python Flask app upon code changes
I'm investigating how to develop a decent web app with Python. Since I don't want some high-order structures to get in my way, my choice fell on the lightweight Flask framework . Time will tell if this was the right choice.
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