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How to scale an Image in ImageView to keep the aspect ratio
In Android, I defined an ImageView 's layout_width to be fill_parent (which takes up the full width of the phone).
25 ...
What is Persistence Context?
I am new to the Java world and JPA. I was studying JPA and came across many new terms like Entity, persistence. While reading, I could not understand the exact definition for Persistence Context .
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Getting attributes of a class
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Try the inspect module. getmembers and the various tests should be helpful.
EDIT:
For example,
class MyClass(object):
a = '12'
b = '34'
def myfunc(self):
return self.a
>>> import inspect
>>> inspect.getmembers(MyClass,...
count vs length vs size in a collection
From using a number of programming languages and libraries I have noticed various terms used for the total number of elements in a collection.
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Linux: copy and create destination dir if it does not exist
I want a command (or probably an option to cp) that creates the destination directory if it does not exist.
21 Answers
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Return value in a Bash function
I am working with a bash script and I want to execute a function to print a return value:
9 Answers
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How can I catch all the exceptions that will be thrown through reading and writing a file?
...ion that may get thrown is an Exception (Uppercase 'E').
If you want to handle your own exceptions first simply add a catch block before the generic Exception one.
try{
}catch(MyOwnException me){
}catch(Exception e){
}
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How do you fork your own repository on GitHub?
I have a public repository on GitHub. I want to replicate/copy it and work on a new project based on this repository, but I don't want to affect how it is now. I tried forking it using the GitHub UI but it didn't do anything.
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How can I copy the output of a command directly into my clipboard?
How can I pipe the output of a command into my clipboard and paste it back when using a terminal? For instance:
17 Answers
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What is string_view?
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The purpose of any and all kinds of "string reference" and "array reference" proposals is to avoid copying data which is already owned somewhere else and of which only a non-mutating view is required. The string_view in question is one such pro...