static String decToBin ( int n ) {
  if ( n == 0 ) return "0" ;
  String bin = "" ;
  while ( n > 0 ) {
    bin = ( ( n & 1 ) == 0 ? '0' : '1' ) + bin ;
    n >>= 1 ;
  }
  return bin ;
}

static String decToBin ( int n ) { if ( n == 0 ) return "0" ; String bin = " " ; while ( n > 0 ) { bin = ( ( n & 1 ) == 0 ? '0' : '1' ) + bin ; n >>= 1 ; } return bin ; }
(method_declaration (modifiers) type: (type_identifier) 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 (string_literal))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (string_literal))) (while_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) body: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (parenthesized_expression (ternary_expression condition: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (decimal_integer_literal)) consequence: (character_literal) alternative: (character_literal))) right: (identifier)))) (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))))) (return_statement (identifier))))