static boolean isPower ( int n ) {
  for ( int x = 2 ;
  x <= ( int ) Math . sqrt ( n ) ;
  x ++ ) {
    float f = ( float ) Math . log ( n ) / ( float ) Math . log ( x ) ;
    if ( ( f - ( int ) f ) == 0.0 ) return true ;
  }
  return false ;
}

static boolean isPower ( int n ) { for ( int x = 2 ; x <= ( int ) Math . sqrt ( n ) ; x ++ ) { float f = ( float ) Math . log ( n ) / ( float ) Math . log ( x ) ; if ( ( f - ( int ) f ) == 0.0 ) return true ; } return false ; }
(method_declaration (modifiers) type: (boolean_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))) update: (update_expression (identifier)) body: (block (local_variable_declaration type: (floating_point_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (cast_expression type: (floating_point_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) right: (cast_expression type: (floating_point_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (cast_expression type: (integral_type) value: (identifier)))) right: (decimal_floating_point_literal))) consequence: (return_statement (true))))) (return_statement (false))))