public static boolean pow10 ( int v ) {
  while ( v > 1 && v % 10 == 0 ) v /= 10 ;
  return v == 1 ;
}

public static boolean pow10 ( int v ) { while ( v > 1 && v % 10 == 0 ) v /= 10 ; return v == 1 ; }
(method_declaration (modifiers) type: (boolean_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (while_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal)))) body: (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal)))) (return_statement (binary_expression left: (identifier) right: (decimal_integer_literal)))))