Example usage for java.util Calendar DECEMBER

Introduction

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

Prototype

int DECEMBER

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

Click Source Link

Document

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

Usage

From source file:Main.java

public static String getMonthString(int month) {
    switch (month) {
    case Calendar.JANUARY:
        return "Jan";
    case Calendar.FEBRUARY:
        return "Feb";
    case Calendar.MARCH:
        return "Mar";
    case Calendar.APRIL:
        return "Apr";
    case Calendar.MAY:
        return "May";
    case Calendar.JUNE:
        return "Jun";
    case Calendar.JULY:
        return "Jul";
    case Calendar.AUGUST:
        return "Aug";
    case Calendar.SEPTEMBER:
        return "Sep";
    case Calendar.OCTOBER:
        return "Oct";
    case Calendar.NOVEMBER:
        return "Nov";
    case Calendar.DECEMBER:
        return "Dec";
    default://w  w w.j a v a 2 s .c  o  m
        return "";
    }
}

---

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://from w w w  .j  a  v  a  2  s .  c o  m
        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 . ja  v  a  2s  .  c  o m
        throw new IllegalArgumentException("Invalid Month");
    }
}

---

From source file:Util.java

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

    cal.setTime(today);/*from   w ww.  j  ava2  s.  c  om*/

    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: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   w w  w. j ava  2s  .c  om
}

---

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:/*from  w w w  . j  av a 2s .c om*/
        return 0;
    }
}

---

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:/* ww w.  ja  v  a  2 s . com*/
        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)) ? 28 : 29;
    default://  ww w.  ja  v  a 2 s  .c o m
        throw new IllegalArgumentException("Invalid Month");
    }
}

---

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   w  w w.  j  a  va2 s  . c  o  m
}

---

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 ww  w . j  a  v  a2s .c  om*/

    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;
}

---

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