static boolean isPowerOfTwo ( int n ) {
  if ( n == 0 ) return false ;
  while ( n != 1 ) {
    if ( n % 2 != 0 ) return false ;
    n = n / 2 ;
  }
  return true ;
}

static boolean isPowerOfTwo ( int n ) { if ( n == 0 ) return false ; while ( n != 1 ) { if ( n % 2 != 0 ) return false ; n = n / 2 ; } return true ; }
(method_declaration (modifiers) type: (boolean_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (return_statement (false))) (while_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (return_statement (false))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))))) (return_statement (true))))