static int highestPower ( int n , int k ) {
  int i = 0 ;
  int a = ( int ) Math . pow ( n , i ) ;
  while ( a <= k ) {
    i += 1 ;
    a = ( int ) Math . pow ( n , i ) ;
  }
  return i - 1 ;
}

static int highestPower ( int n , int k ) { int i = 0 ; int a = ( int ) Math . pow ( n , i ) ; while ( a <= k ) { i += 1 ; a = ( int ) Math . pow ( n , i ) ; } return i - 1 ; }
(method_declaration (modifiers) type: (integral_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: (decimal_integer_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (identifier)))))) (while_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) body: (block (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))) (expression_statement (assignment_expression left: (identifier) right: (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (identifier)))))))) (return_statement (binary_expression left: (identifier) right: (decimal_integer_literal)))))