How to compile only modified java files in Eclipse

Question

I am trying to build the project in Eclipse but it cleans the project first and then bulids. I want to complile files those are modified. how can i achieve the same in Eclipse

Answer 1

Eclipse by default (re)compiles only changed files and those that depend on them, just make sure you have checked Build automatically under the Project menu so that the compilation happens after saving the file edited.

EDIT

Check the settings under

Preferences > Java > Compiler

and

Preferences > Java > Compiler > Building

Try to restore the defaults in each one.