How to fix java warning for "The value of the local variable is not used "

Question

How to avoid java warning which says

The value of the local variable is not used

for the variable which is declared as private?

Answer 1

You have multiple choices:

1. Remove the field.
   It is unused, so it shouldn't be there.
2. Comment out the field, e.g. using // TODO
   Good for temporary hiding of warning until you write code using field.
3. Suppress the warning using @SuppressWarnings("unused").
4. Disable the warning in IDE settings. For Eclipse, that would be in
   • Window > Preferences
   • Java > Compiler > Error/Warnings
   • Unnecessary code > Unused private member
   • Select option Ignore

For #3 and #4, though, although you can, why would you want to?