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Strings are objects in Java, so why don't we use 'new' to create them?

We normally create objects using the new keyword, like: 15 Answers 15 ...
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Swift - class method which must be overridden by subclass

Is there a standard way to make a "pure virtual function" in Swift, ie. one that must be overridden by every subclass, and which, if it is not, causes a compile time error? ...
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How to output messages to the Eclipse console when developing for Android

How can I print messages (like a flag) to the Eclipse console (or log) when developing and debugging an Android app 5 Answe...
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bash assign default value

I thought I could use this feature to write ${LONG_VARIABLE_NAME:=hello} instead of the longer LONG_VARIABLE_NAME=${LONG_VARIABLE_NAME:-hello} , but now bash also tries to execute 'hello' and that gives a command not found. Any way to avoid that? Or will I have to stick to the latter? Can someone...
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What exactly does the post method do?

I've encountered a very weird feature. 4 Answers 4 ...
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How do you discover model attributes in Rails?

I am finding it difficult to easily see what attributes/properties exist on all of my model classes since they are not explicitly defined in my class files. ...
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How to initialize a dict with keys from a list and empty value in Python?

I'd like to get from this: 6 Answers 6 ...
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List submodules in a Git repository

I have a Git repository that has several submodules in it. How do I list the names of all the submodules after git submodule init has been run? ...
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How to start nginx via different port(other than 80)

Hi I am a newbie on nginx, I tried to set it up on my server(running Ubuntu 4), which already has apache running. 5 Answer...
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How to exclude file only from root folder in Git

I am aware of using .gitignore file to exclude some files being added, but I have several config.php files in source tree and I need to exclude only one, located in the root while other keep under revision control. ...