question: gets the extension if present on a file by looking at the filename concode_field_sep Set<String> mTouchedExtensions concode_elem_sep File mFile concode_field_sep boolean ignores concode_elem_sep boolean checksForModification concode_elem_sep File getFile
target: String function ( String arg0 ) { int loc0 = arg0 . lastIndexOf ( '.' ) ; if ( loc0 == - 1 ) { return "srini_string" ; } return arg0 . substring ( loc0 + 1 ) ; }