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In Java SE, variable scope determines where they are accessible and valid within a program. Local variables are confined to the block, method, or constructor where they are declared, created when ...
i.e. intuitively it looks like the variable will only be available within the block but it is accessible outside the block .. in javascript's case, because var doesn't make a block level ...
It is generally accepted that variables with a narrow syntactic scope can have short names, whereas variables with a broad scope require more informative longer names. We study how names are given in ...