calendarクラス
import java.util.Calendar;
Calendar cal1 = Calendar.getInstance();文字エンコード指定
int hour = cal1.get(Calendar.HOUR_OF_DAY);
int minute = cal1.get(Calendar.MINUTE);
int second = cal1.get(Calendar.SECOND);
int year = cal1.get(Calendar.YEAR);
int month = cal1.get(Calendar.MONTH);
int date = cal1.get(Calendar.DATE);
int weeknum = cal1.get(Calendar.DAY_OF_WEEK);
String week[] = {"土","日","月","火","水","木","金"};
response.setContentType("text/html; charset=UTF-8");
PrintWriter out = response.getWriter();文字化けする時、responseを先に記入しないと文字エンコード指定が適用されない。