Java - Why is it possible to declare a variable without an initial value?
I'm reading Gilles Dowek's Principles of Programming Languanges:
He says that it's also possible to declare a variable without giving it an initial value and also that we must be careful not to use a variable which has been declared without an initial value and that has not been assigned a value. This produces an error.
Note: The book's author mentions the possibility of declaring variables without an initial value on Java.
So, why is this declaration of variables valid? When am I going to use it?
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