static void reverseStr ( int l , int h ) {
  int n = h - l ;
  for ( int i = 0 ;
  i < n / 2 ;
  i ++ ) {
    s = swap ( i + l , n - i - 1 + l ) ;
  }
}

static void reverseStr ( int l , int h ) { int n = h - l ; for ( int i = 0 ; i < n / 2 ; i ++ ) { s = swap ( i + l , n - i - 1 + l ) ; } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (identifier)))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal))) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (identifier) right: (method_invocation name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (identifier)) (binary_expression left: (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (decimal_integer_literal)) right: (identifier))))))))))