[android] Calenderメソッドで１日後、１ヶ月後、１年後の日付を取得

Calenderメソッドで１日後、１ヶ月後、１年後の日付を取得

１日後

Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE, 1);

１日前

Calendar cal = Calendar.getInstance();
cal.add(Calendar.DATE, -1);

１ヶ月後

Calendar cal = Calendar.getInstance();
cal.add(Calendar.MONTH, 1);

１ヶ月前

Calendar cal = Calendar.getInstance();
cal.add(Calendar.MONTH, -1);

１年後

Calendar cal = Calendar.getInstance();
cal.add(Calendar.YEAR, 1);

１年前

Calendar cal = Calendar.getInstance();
cal.add(Calendar.YEAR, -1);