static float polyarea ( float n , float a ) {
  if ( a < 0 && n < 0 ) return - 1 ;
  float A = ( a * a * n ) / ( float ) ( 4 * Math . tan ( ( 180 / n ) * 3.14159 / 180 ) ) ;
  return A ;
}

static float polyarea ( float n , float a ) { if ( a < 0 && n < 0 ) return - 1 ; float A = ( a * a * n ) / ( float ) ( 4 * Math . tan ( ( 180 / n ) * 3.14159 / 180 ) ) ; return A ; }
(method_declaration (modifiers) type: (floating_point_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (floating_point_type) name: (identifier)) (formal_parameter type: (floating_point_type) name: (identifier))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) consequence: (return_statement (unary_expression operand: (decimal_integer_literal)))) (local_variable_declaration type: (floating_point_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (identifier))) right: (cast_expression type: (floating_point_type) value: (parenthesized_expression (binary_expression left: (decimal_integer_literal) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (binary_expression left: (parenthesized_expression (binary_expression left: (decimal_integer_literal) right: (identifier))) right: (decimal_floating_point_literal)) right: (decimal_integer_literal)))))))))) (return_statement (identifier))))