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final local variables

 
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Hello,

what are possible benefits of making local variables final. I'm asking for both, primitive and reference type.


 
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The advantage is we can have a variable whose value is safeguarded against reassignment..i.e. helps us to define a constant value for the method. We can do it globally but if it is only required for a particular method it is better to put it in local scope.
Eg: We have a method to calculate the area of circle, the constant pi could be local final variable. By making it final we ensure its value is constant
 
Rancher
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while variables can change value (because they are variable), it is generally bad practice to reuse variables.
If you obtain a value for a local variable and that value is not expected to change, you can prevent bugs by making the variable final.
 
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Some suggest that all method parameters should be marked final, to
assure that a reliable copy of each passed value is always available.

Jim ... ...
 
David O'Meara
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I'm not against that either
 
Martin Vanyavchich
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It's what I've been looking for . Thanks to all.
 
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