static void reverse ( int [ ] a , int n , int k ) {
  if ( k > n ) {
    System . out . println ( "Invalid k" ) ;
    return ;
  }
  for ( int i = 0 ;
  i < k / 2 ;
  i ++ ) {
    int tempswap = a [ i ] ;
    a [ i ] = a [ k - i - 1 ] ;
    a [ k - i - 1 ] = tempswap ;
  }
}

static void reverse ( int [ ] a , int n , int k ) { if ( k > n ) { System . out . println ( " Invalid ▁ k " ) ; return ; } for ( int i = 0 ; i < k / 2 ; i ++ ) { int tempswap = a [ i ] ; a [ i ] = a [ k - i - 1 ] ; a [ k - i - 1 ] = tempswap ; } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (integral_type) dimensions: (dimensions)) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) (return_statement))) (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 (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (array_access array: (identifier) index: (identifier)))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (decimal_integer_literal))))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (decimal_integer_literal))) right: (identifier)))))))