Java SE 9 : Improved try-with-resources statements
In java 7 or 8 if a resource is already declared outside the try-with-resources statement, we should re-refer it with local variable. That means we have to declare a new variable in try block. Let us look at the code explaining above argument :
In Java 9 we are not required to create this local variable. It means, if we have a resource which is already declared outside a try-with-resources statement as final or effectively final, then we do not have to create a local variable referring to the declared resource, that declared resource can be used without any issue. Let us look at java code explaining above argument.
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