static int bellNumber ( int n ) {
  int [ ] [ ] bell = new int [ n + 1 ] [ n + 1 ] ;
  bell [ 0 ] [ 0 ] = 1 ;
  for ( int i = 1 ;
  i <= n ;
  i ++ ) {
    bell [ i ] [ 0 ] = bell [ i - 1 ] [ i - 1 ] ;
    for ( int j = 1 ;
    j <= i ;
    j ++ ) bell [ i ] [ j ] = bell [ i - 1 ] [ j - 1 ] + bell [ i ] [ j - 1 ] ;
  }
  return bell [ n ] [ 0 ] ;
}

static int bellNumber ( int n ) { int [ ] [ ] bell = new int [ n + 1 ] [ n + 1 ] ; bell [ 0 ] [ 0 ] = 1 ; for ( int i = 1 ; i <= n ; i ++ ) { bell [ i ] [ 0 ] = bell [ i - 1 ] [ i - 1 ] ; for ( int j = 1 ; j <= i ; j ++ ) bell [ i ] [ j ] = bell [ i - 1 ] [ j - 1 ] + bell [ i ] [ j - 1 ] ; } return bell [ n ] [ 0 ] ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (array_type element: (integral_type) dimensions: (dimensions)) declarator: (variable_declarator name: (identifier) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (binary_expression left: (identifier) right: (decimal_integer_literal))) dimensions: (dimensions_expr (binary_expression left: (identifier) right: (decimal_integer_literal)))))) (expression_statement (assignment_expression left: (array_access array: (array_access array: (identifier) index: (decimal_integer_literal)) index: (decimal_integer_literal)) right: (decimal_integer_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 (expression_statement (assignment_expression left: (array_access array: (array_access array: (identifier) index: (identifier)) index: (decimal_integer_literal)) right: (array_access array: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) index: (binary_expression left: (identifier) right: (decimal_integer_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: (expression_statement (assignment_expression left: (array_access array: (array_access array: (identifier) index: (identifier)) index: (identifier)) right: (binary_expression left: (array_access array: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (array_access array: (array_access array: (identifier) index: (identifier)) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))))))) (return_statement (array_access array: (array_access array: (identifier) index: (identifier)) index: (decimal_integer_literal)))))