Example usage for java.util Calendar JANUARY

Introduction

In this page you can find the example usage for java.util Calendar JANUARY.

Prototype

int JANUARY

To view the source code for java.util Calendar JANUARY.

Click Source Link

Document

Value of the #MONTH field indicating the first month of the year in the Gregorian and Julian calendars.

Usage

From source file:Main.java

public static int getDaysInMonth(int month, int year) {
    switch (month) {
    case Calendar.JANUARY:
    case Calendar.MARCH:
    case Calendar.MAY:
    case Calendar.JULY:
    case Calendar.AUGUST:
    case Calendar.OCTOBER:
    case Calendar.DECEMBER:
        return 31;
    case Calendar.APRIL:
    case Calendar.JUNE:
    case Calendar.SEPTEMBER:
    case Calendar.NOVEMBER:
        return 30;
    case Calendar.FEBRUARY:
        return (year % 4 == 0) ? 29 : 28;
    default:// www .  j a  va 2s .c om
        throw new IllegalArgumentException("Invalid Month");
    }
}

---

From source file:Main.java

public static int getDaysInMonth(int month, int year) {
    switch (month) {
    case Calendar.JANUARY:
    case Calendar.MARCH:
    case Calendar.MAY:
    case Calendar.JULY:
    case Calendar.AUGUST:
    case Calendar.OCTOBER:
    case Calendar.DECEMBER:
        return 31;
    case Calendar.APRIL:
    case Calendar.JUNE:
    case Calendar.SEPTEMBER:
    case Calendar.NOVEMBER:
        return 30;
    case Calendar.FEBRUARY:
        return (year % 4 == 0 && year % 100 != 0 || year % 400 == 0) ? 29 : 28;
    default:/*www .  j a  va2s . c  om*/
        throw new IllegalArgumentException("Invalid Month");
    }
}

---

From source file:Main.java

/** Helper method - creates a Phoenix date <I>String</I> from a Date object.
   @param dteValue <I>Date</I> object to be converted.
   @return A <I>String</I> that follows the format "YYYY-MM-DDTHH:NN:SS.00000".
 *//*from w  ww. ja  v  a2s.  co  m*/
public static String getXMLStringFromDate(Date dteValue) {
    if (null == dteValue)
        return null;

    Calendar pCalendar = Calendar.getInstance();

    pCalendar.setTime(dteValue);

    // Return the String value.
    // Special treatment for the month because the current implementation
    // values January as 0. Code below should work if that ever changes.
    return pCalendar.get(Calendar.YEAR) + "-" + padNumber(pCalendar.get(Calendar.MONTH) + 1 - Calendar.JANUARY)
            + "-" + padNumber(pCalendar.get(Calendar.DAY_OF_MONTH)) + "T"
            + padNumber(pCalendar.get(Calendar.HOUR_OF_DAY)) + ":" + padNumber(pCalendar.get(Calendar.MINUTE))
            + ":" + padNumber(pCalendar.get(Calendar.SECOND));
}

---

From source file:Main.java

public static int stringMonthToInt(@NonNull final String month) {
    switch (month) {
    case "Jan":
        return Calendar.JANUARY;

    case "Feb":
        return Calendar.FEBRUARY;

    case "Mar":
        return Calendar.MARCH;

    case "Apr":
        return Calendar.APRIL;

    case "May":
        return Calendar.MAY;

    case "Jun":
        return Calendar.JUNE;

    case "Jul":
        return Calendar.JULY;

    case "Aug":
        return Calendar.AUGUST;

    case "Sep":
        return Calendar.SEPTEMBER;

    case "Oct":
        return Calendar.OCTOBER;

    case "Nov":
        return Calendar.NOVEMBER;

    case "Dec":
        return Calendar.DECEMBER;

    default:/* ww  w.  j  ava 2  s.  c om*/
        return 0;
    }
}

---

From source file:Main.java

public static int getMonth(String str) {
    if (str.equals("jan"))
        return Calendar.JANUARY;
    if (str.equals("feb"))
        return Calendar.FEBRUARY;
    if (str.equals("mar"))
        return Calendar.MARCH;
    if (str.equals("apr"))
        return Calendar.APRIL;
    if (str.equals("may"))
        return Calendar.MAY;
    if (str.equals("jun"))
        return Calendar.JUNE;
    if (str.equals("jul"))
        return Calendar.JULY;
    if (str.equals("aug"))
        return Calendar.AUGUST;
    if (str.equals("sep"))
        return Calendar.SEPTEMBER;
    if (str.equals("oct"))
        return Calendar.OCTOBER;
    if (str.equals("nov"))
        return Calendar.NOVEMBER;
    if (str.equals("dec"))
        return Calendar.DECEMBER;

    return -1;/*from   ww  w  . j a  v a  2s.c  o  m*/
}

---

From source file:Util.java

private static int getMonthLastDate(int month, int year) {
    switch (month) {
    case Calendar.JANUARY:
    case Calendar.MARCH:
    case Calendar.MAY:
    case Calendar.JULY:
    case Calendar.AUGUST:
    case Calendar.OCTOBER:
    case Calendar.DECEMBER:
        return 31;

    case Calendar.APRIL:
    case Calendar.JUNE:
    case Calendar.SEPTEMBER:
    case Calendar.NOVEMBER:
        return 30;

    default: //  Calendar.FEBRUARY
        return year % 4 == 0 ? 29 : 28;
    }/*from  www  .  ja va 2s. c om*/
}

---

From source file:Main.java

public static String getDateString() {
    String stringDate = "";
    Calendar calendar = Calendar.getInstance();
    int day = calendar.get(Calendar.DAY_OF_WEEK);
    int month = calendar.get(Calendar.MONTH);
    int dayInt = calendar.get(Calendar.DAY_OF_MONTH);
    switch (day) {
    case Calendar.SUNDAY:
        stringDate += "Sunday";
        break;/*from   w ww. j av  a 2s  .c o m*/

    case Calendar.MONDAY:
        stringDate += "Monday";
        break;

    case Calendar.TUESDAY:
        stringDate += "Tuesday";
        break;

    case Calendar.WEDNESDAY:
        stringDate += "Wednesday";
        break;

    case Calendar.THURSDAY:
        stringDate += "Thursday";
        break;

    case Calendar.FRIDAY:
        stringDate += "Friday";
        break;

    case Calendar.SATURDAY:
        stringDate += "Saturday";
        break;

    }
    switch (month) {
    case Calendar.JANUARY:
        stringDate += ", January";
        break;

    case Calendar.FEBRUARY:
        stringDate += ", February";
        break;

    case Calendar.MARCH:
        stringDate += ", March";
        break;

    case Calendar.APRIL:
        stringDate += ", April";
        break;

    case Calendar.MAY:
        stringDate += ", May";
        break;

    case Calendar.JUNE:
        stringDate += ", June";
        break;

    case Calendar.JULY:
        stringDate += ", July";
        break;

    case Calendar.AUGUST:
        stringDate += ", August";
        break;

    case Calendar.SEPTEMBER:
        stringDate += ", September";
        break;

    case Calendar.OCTOBER:
        stringDate += ", October";
        break;

    case Calendar.NOVEMBER:
        stringDate += ", November";
        break;

    case Calendar.DECEMBER:
        stringDate += ", December";
        break;

    }

    stringDate += (" " + dayInt);

    return stringDate;
}

---

From source file:Util.java

public static Date getMonday(Date today) {
    Calendar cal = Calendar.getInstance();

    cal.setTime(today);/*from w  ww  .  java2s  .co  m*/

    int dow = cal.get(Calendar.DAY_OF_WEEK);

    while (dow != Calendar.MONDAY) {
        int date = cal.get(Calendar.DATE);

        if (date == 1) {
            int month = cal.get(Calendar.MONTH);

            if (month == Calendar.JANUARY) {
                month = Calendar.DECEMBER;

                cal.set(Calendar.YEAR, cal.get(Calendar.YEAR) - 1);
            } else {
                month--;
            }

            cal.set(Calendar.MONTH, month);

            date = getMonthLastDate(month, cal.get(Calendar.YEAR));
        } else {
            date--;
        }

        cal.set(Calendar.DATE, date);

        dow = cal.get(Calendar.DAY_OF_WEEK);
    }

    return cal.getTime();
}

---

From source file:Main.java

@NonNull
static Date convertDate(int date, int time) {
    Calendar calendar = Calendar.getInstance();
    calendar.set(Calendar.YEAR, 1997);
    calendar.set(Calendar.MONTH, Calendar.JANUARY);
    calendar.set(Calendar.DAY_OF_MONTH, 1);
    calendar.set(Calendar.HOUR_OF_DAY, time / 60);
    calendar.set(Calendar.MINUTE, time % 60);

    calendar.add(Calendar.DATE, date);

    return calendar.getTime();
}

---

From source file:Main.java

public static int getDaysInMonth(int month, int year) {
    switch (month) {
    case Calendar.JANUARY:
    case Calendar.MARCH:
    case Calendar.MAY:
    case Calendar.JULY:
    case Calendar.AUGUST:
    case Calendar.OCTOBER:
    case Calendar.DECEMBER:
        return 31;
    case Calendar.APRIL:
    case Calendar.JUNE:
    case Calendar.SEPTEMBER:
    case Calendar.NOVEMBER:
        return 30;
    case Calendar.FEBRUARY:
        return ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) ? 29 : 28;
    default:/*  w  w  w  .j av  a  2  s .  c  o m*/
        throw new IllegalArgumentException("Invalid Month");
    }
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• »