static void printExpansion ( String str ) {
  for ( int i = str . length ( ) - 1 ;
  i >= 0 ;
  i -- ) {
    String subStr = str . substring ( i ) ;
    System . out . print ( subStr ) ;
  }
}

static void printExpansion ( String str ) { for ( int i = str . length ( ) - 1 ; i >= 0 ; i -- ) { String subStr = str . substring ( i ) ; System . out . print ( subStr ) ; } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (type_identifier) name: (identifier))) body: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: (decimal_integer_literal)))) condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))))