superobject中 JavaToDelphiDateTime的使用

procedure TForm1.FormCreate(Sender: TObject);
var
  n: TDateTime;
  i64: Int64;
  s: Integer;
begin  Memo1.Clear; Memo1.ReadOnly := True;
  n := StrToDateTime(‘2014-05-02 10:37:35‘);
  Memo1.Lines.Add( IntToStr( DateTimeToUnix(N) - 28800 ))  ;//1398998255
  Memo1.Lines.Add( IntToStr( DelphiToJavaDateTime(N )));    //1398998255000
  Memo1.Lines.Add( DateTimeToStr(  JavaToDelphiDateTime(DelphiToJavaDateTime(N ))));  //2014-05-02 10:37:35

  with TRegistry.Create(KEY_WOW64_64KEY or KEY_ALL_ACCESS) do
  try
    RootKey := HKEY_LOCAL_MACHINE;
    if OpenKey(‘SOFTWARE\Microsoft\Windows NT\CurrentVersion‘, False) then
    begin
      Memo1.Lines.Add(IntToStr(ReadInteger(‘InstallDate‘)));//1398998255
      Memo1.Lines.Add(DateTimeToStr(UnixToDateTime(ReadInteger(‘InstallDate‘) + 28800))); //2014-05-02 10:37:35
      i64 := ReadInteger(‘InstallDate‘); //这里 必须先这样转为64位，不能直接 * 1000，直接的话，按integer类型计算，结果超过MaxInt了。
      i64 := i64 * 1000;
      Memo1.Lines.Add(DateTimeToStr(JavaToDelphiDateTime(i64))); //2014-05-02 10:37:35
    end;
  finally
    Free
  end;
end;