Java中的一周糟糕的一周

Question

我有正确的一周的问题.我有JTextField,我以DD.MM.YYYY格式输入日期.

private void buttonAddCulturalActionActionPerformed(java.awt.event.ActionEvent evt) {                                               
    String date = textfieldDateOfEvent.getText();
    if (!isCorrectFormatDate(date)) {
        textareaExtract.append("Wrong date format!\n");
        return;
    }
    int day = Integer.parseInt(date.substring(0, 2));
    int month = Integer.parseInt(date.substring(3, 5));
    int year = Integer.parseInt(date.substring(6, 10));
    GregorianCalendar enteredDate = new GregorianCalendar(year, month, day);
    String actionName = textfieldActionName.getText();
    String placeActionName = textfieldPlaceActionName.getText();
    int startHourAction = Integer.parseInt(textfieldStartHourAction.getText());

    if (isAllEntered(actionName, enteredDate, placeActionName, startHourAction)) {
        CulturalAction newAction = new CulturalAction(actionName, enteredDate,
                placeActionName, startHourAction);
        // culturalActions is priority queue
        culturalActions.add(newAction);
        extractAction(newAction);
    } else {
        textareaExtract.append("You need entered all parameters!\n");
    }
}

在这里,我设置了文化操作(在构造函数中):

public CulturalAction(String nameAction, GregorianCalendar dateAction, String placeAction, int startHourAction) {
    this.nameAction = nameAction;
    this.placeAction = placeAction;
    this.startHourAction = startHourAction;
    // I have private attribute numberOfWeek in class CulturalAction
    cisloTydne = dateAction.get(GregorianCalendar.WEEK_OF_YEAR);
}

当我输入日期10.10.2013并且它将返回45号周,但40正确.我来自捷克共和国.

谢谢你的建议!

Answer 1

这就是问题:

GregorianCalendar enteredDate = new GregorianCalendar(year, month, day);

这将是呼唤new GregorianCalendar(2013, 10, 10)- 这意味着11月,而不是10月.

从GregorianCalendar构造函数文档:

month - 用于在日历中设置MONTH日历字段的值.月值基于0.例如,1月份为0.

另外两点建议:

• 如果必须只使用Java库,则使用它SimpleDateFormat来执行解析,而不是自己执行
• 如果可能,请使用Joda Time,这是一个更合理的API