static float cone ( float a ) {
  if ( a < 0 ) return - 1 ;
  float r = ( float ) ( a * Math . sqrt ( 2 ) ) / 3 ;
  float h = ( 2 * a ) / 3 ;
  float V = ( float ) ( 3.14 * Math . pow ( r , 2 ) * h ) ;
  return V ;
}

static float cone ( float a ) { if ( a < 0 ) return - 1 ; float r = ( float ) ( a * Math . sqrt ( 2 ) ) / 3 ; float h = ( 2 * a ) / 3 ; float V = ( float ) ( 3.14 * Math . pow ( r , 2 ) * h ) ; return V ; }
(method_declaration (modifiers) type: (floating_point_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (floating_point_type) name: (identifier))) body: (block (if_statement condition: (parenthesized_expression (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: (cast_expression type: (floating_point_type) value: (parenthesized_expression (binary_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal)))))) right: (decimal_integer_literal)))) (local_variable_declaration type: (floating_point_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (parenthesized_expression (binary_expression left: (decimal_integer_literal) right: (identifier))) right: (decimal_integer_literal)))) (local_variable_declaration type: (floating_point_type) declarator: (variable_declarator name: (identifier) value: (cast_expression type: (floating_point_type) value: (parenthesized_expression (binary_expression left: (binary_expression left: (decimal_floating_point_literal) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (decimal_integer_literal)))) right: (identifier)))))) (return_statement (identifier))))