public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int h = sc . nextInt ( ) ;
  int w = sc . nextInt ( ) ;
  s = new String [ h ] [ w ] ;
  for ( int i = 0 ;
  i < h ;
  i ++ ) {
    s [ i ] = sc . next ( ) . split ( "" ) ;
  }
  for ( int i = 0 ;
  i < h ;
  i ++ ) {
    for ( int j = 0 ;
    j < w ;
    j ++ ) {
      if ( "." . equals ( s [ i ] [ j ] ) ) {
        continue ;
      }
      if ( ! hasNeighbor ( i , j ) ) {
        System . out . println ( "No" ) ;
        return ;
      }
    }
  }
  System . out . println ( "Yes" ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int h = sc . nextInt ( ) ; int w = sc . nextInt ( ) ; s = new String [ h ] [ w ] ; for ( int i = 0 ; i < h ; i ++ ) { s [ i ] = sc . next ( ) . split ( " " ) ; } for ( int i = 0 ; i < h ; i ++ ) { for ( int j = 0 ; j < w ; j ++ ) { if ( " . " . equals ( s [ i ] [ j ] ) ) { continue ; } if ( ! hasNeighbor ( i , j ) ) { System . out . println ( " No " ) ; return ; } } } System . out . println ( " Yes " ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (assignment_expression left: (identifier) right: (array_creation_expression type: (type_identifier) dimensions: (dimensions_expr (identifier)) dimensions: (dimensions_expr (identifier))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (method_invocation object: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) name: (identifier) arguments: (argument_list (string_literal))))))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (method_invocation object: (string_literal) name: (identifier) arguments: (argument_list (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier))))) consequence: (block (continue_statement))) (if_statement condition: (parenthesized_expression (unary_expression operand: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) (return_statement))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))))