question: @ Override public String toStringKey ( ) { String result ; int i ; result = "Key:\n" ; for ( i = 0 ; i < getColCount ( ) ; i ++ ) { if ( getColHidden ( i ) ) { continue ; } result += LEFT_PARENTHESES + ( i + 1 ) + RIGHT_PARENTHESES + " " + removeFilterName ( m_ColNames [ i ] ) + "\n" ; } return result ; }
target:  returns returns a key for all the col names, for better readability if the names got cut off.