システム日付の取得

Pythonでのシステム日付の取得はdateオブジェクトを用います。

例）Python

from datetime import date

date.today().year
date.today().month
date.today().day

date.isoformat(date.today())

出力）

> 2009
> 10
> 1
> '2009-10-01'

例）Java

System.out.println(Calendar.getInstance().get(Calendar.YEAR));
System.out.println(Calendar.getInstance().get(Calendar.MONTH));
System.out.println(Calendar.getInstance().get(Calendar.DAY_OF_MONTH));

SimpleDateFormat sdf = new SimpleDateFormat("yyyy'-'MM'-'dd");
System.out.println(sdf.format(Calendar.getInstance().getTime()));