static boolean isSquare ( int num ) {
  int root = ( int ) Math . sqrt ( num ) ;
  return ( root * root ) == num ;
}

static boolean isSquare ( int num ) { int root = ( int ) Math . sqrt ( num ) ; return ( root * root ) == num ; }
(method_declaration (modifiers) type: (boolean_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))))) (return_statement (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) right: (identifier)))))