static void dupLastIndex ( int arr [ ] , int n ) {
  if ( arr == null || n <= 0 ) return ;
  for ( int i = n - 1 ;
  i > 0 ;
  i -- ) {
    if ( arr [ i ] == arr [ i - 1 ] ) {
      System . out . println ( "Last index:" + i ) ;
      System . out . println ( "Last duplicate item: " + arr [ i ] ) ;
      return ;
    }
  }
  System . out . print ( "no duplicate found" ) ;
}

static void dupLastIndex ( int arr [ ] , int n ) { if ( arr == null || n <= 0 ) return ; for ( int i = n - 1 ; i > 0 ; i -- ) { if ( arr [ i ] == arr [ i - 1 ] ) { System . out . println ( " Last ▁ index : " + i ) ; System . out . println ( " Last ▁ duplicate ▁ item : ▁ " + arr [ i ] ) ; return ; } } System . out . print ( " no ▁ duplicate ▁ found " ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier) dimensions: (dimensions)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (null_literal)) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) consequence: (return_statement)) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (decimal_integer_literal)))) condition: (binary_expression left: (identifier) right: (decimal_integer_literal)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (string_literal) right: (identifier))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (string_literal) right: (array_access array: (identifier) index: (identifier)))))) (return_statement))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal))))))