Google Tag Manager

2018/01/29

Apply LocalDate considering Locale to JTable and display calendar

java -Duser.language=en -jar example.jar
java -Duser.language=fr -jar example.jar
java -Duser.language=ar -jar example.jar

Code

class CalendarViewTableModel extends DefaultTableModel {
  private final LocalDate startDate;
  private final WeekFields weekFields = WeekFields.of(Locale.getDefault());
  public CalendarViewTableModel(LocalDate date) {
    super();
    LocalDate firstDayOfMonth = YearMonth.from(date).atDay(1);
    int dowv = firstDayOfMonth.get(weekFields.dayOfWeek()) - 1;
    startDate = firstDayOfMonth.minusDays(dowv);
  }
  @Override public Class< ?> getColumnClass(int column) {
    return LocalDate.class;
  }
  @Override public String getColumnName(int column) {
    return weekFields.getFirstDayOfWeek().plus(column)
      .getDisplayName(TextStyle.SHORT_STANDALONE, Locale.getDefault());
  }
  @Override public int getRowCount() {
    return 6;
  }
  @Override public int getColumnCount() {
    return 7;
  }
  @Override public Object getValueAt(int row, int column) {
    return startDate.plusDays(row * getColumnCount() + column);
  }
  @Override public boolean isCellEditable(int row, int column) {
    return false;
  }
}

References