Remove all unused imports with one click

I am almost month old in my new company. The project I am working has 5K approx warnings and majority of them are because of unused imports and unused variables (gurrrrr). So I was looking for someway to fix these minor things using some tool and guess what I found eclipse "Organize Imports (Ctrl+Shift+O) in most eclipse" can be executed at package or project level. Bingoooooooooo resolved around half of warning. Feeling better inside :)

Choose the package -> Right click -> Source -> Organize Imports.

Now to the next job of finding the tool for unused variables. Wish me luck
Manisha