Java Calendar getDisplayName() Method //return String

The getDisplayName() method of java.util.Calendar class returns String representation of the calendar field value passed as parameter in a given style and local. Style and local are also passed as parameter. If no String representation is available, getDisplayName() returns null value. If String representation is available, get() method is called to access the calendar field value.

Syntax

Parameter

field - the calendar fields are passed like MONTH , DAY_OF_WEEK etc

style - it is the style to be applied to String representation of field passed as parameter.

locale - the locale for the string representation.

Returns

The string representation of field passed as parameter in specified format (style) and local is returned.

Throws

IllegalArgumentExeption

NullPointerException

Example 1

import java.util.Calendar;
import static java.util.Calendar.DAY_OF_WEEK;
import static java.util.Calendar.LONG;
import static java.util.Calendar.SATURDAY;
import static java.util.Calendar.SUNDAY;
import java.util.Locale;
// first import all the required classes
public class JavaCalendargetDisplayNameExample1 {
    public static void main(String[] args) {
        //getting the instance of calendar class using getinstance() method.
      Calendar cal1 = Calendar.getInstance(new Locale("ja", "JP", "JP"));
    Calendar cal2 = Calendar.getInstance(Locale.US);

    // for loop starting from Sunday and running till Saturday
    for (int i = SUNDAY; i <= SATURDAY; i++) {
        cal1.set(DAY_OF_WEEK, i);
       

        String c1 = cal1.getDisplayName(DAY_OF_WEEK, LONG, Locale.US);
        System.out.println(c1);
           }
}
} 

Test it Now

Output:

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday

Example 2

import java.util.Calendar;
import static java.util.Calendar.DAY_OF_WEEK;
import static java.util.Calendar.DECEMBER;
import static java.util.Calendar.JANUARY;
import static java.util.Calendar.LONG;
import static java.util.Calendar.MONTH;
import static java.util.Calendar.SATURDAY;
import static java.util.Calendar.SUNDAY;
import java.util.Locale;
// first import all the required classes
public class JavaCalendargetDisplayNameExample11 {    
    public static void main(String[] args) {
        //getting the instance of calendar class using getinstance() method.
      Calendar cal1 = Calendar.getInstance(new Locale("ja", "JP", "JP"));
    Calendar cal2 = Calendar.getInstance(Locale.US);
    // for loop starting from Sunday and running till Saturday\
    System.out.println("Days of week are");
         for (int i = JANUARY; i <= DECEMBER; i++) {
        cal1.set(MONTH, i);
        String c2 = cal1.getDisplayName(MONTH, LONG, Locale.US);
        System.out.println(c2);
    }
    System.out.println("Months of year are");
    for (int i = SUNDAY; i <= SATURDAY; i++) {  
       cal2.set(DAY_OF_WEEK, i);
        String c1 = cal2.getDisplayName(DAY_OF_WEEK, LONG, Locale.US);
        System.out.println(c1);
              }
}
}

Test it Now

Output:

Days of week are
January
February
March
April
May
June
July
August
September
October
November
December
Months of year are
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday

Example 3

import java.util.Calendar;
import static java.util.Calendar.DAY_OF_YEAR;
import static java.util.Calendar.LONG;
import static java.util.Calendar.SATURDAY;
import static java.util.Calendar.SUNDAY;
import java.util.Locale;
// first import all the required classes
public class JavaCalendargetDisplayNameExample12 {
        public static void main(String[] args) {
        //getting the instance of calendar class using getinstance() method.
      Calendar cal1 = Calendar.getInstance(new Locale("ja"));
    Calendar cal2 = Calendar.getInstance(Locale.US);

    // for loop starting from Sunday and running till Saturday
    System.out.println("Days of year do not have String representation");
    for (int i = SUNDAY; i <= SATURDAY; i++) {
        cal1.set(DAY_OF_YEAR, i);
       String c1 = cal1.getDisplayName(DAY_OF_YEAR, LONG, Locale.US);
        System.out.println(c1);
        
    }
}
}

Test it Now

Output:

Days of year do not have String representation
null
null
null
null
null
null
null

Java Calendar getDisplayName(int field, int style, Locale locale) Method

The getDisplayName() method of java.util.Calendar class returns Map representation of the calendar field value passed as parameter in a given style and local. Style and local are also passed as parameter. As this method returns Map representation of passed field it has a String representation and a key value in integer form. Key value is used to uniquely identify.

Syntax

Parameter

field - the calendar fields are passed like MONTH , DAY_OF_WEEK etc

style - it is the style to be applied to String representation of field passed as parameter.

locale - the locale for the string representation.

Returns

The Map representation of field passed as parameter in specified format (style) and local is returned. Local and style is also passed as parameter.

Throws

IllegalArgumentExeption

NullPointerException

Example 1

import java.util.*;
public class JavaCalendargetDisplayNameExample2 {
 public static void main(String[] args) {
     // create calendar and locale
      Calendar cal1 = Calendar.getInstance();
      Locale loc = Locale.getDefault();
  // geting all the days of week using getDisplayName method 
      //and assigning it to a String tree set
      Map< String, Integer> tset = 
      cal1.getDisplayNames(Calendar.DAY_OF_WEEK, Calendar.LONG, loc);
      NavigableMap< String, Integer> Map =  
      new TreeMap< String, Integer>(tset);
      // print the results
      System.out.printf("List of Days in a week are :%n%s%n", Map);
   }
}

Test it Now

Output:

List of Days in a week are :
{Friday=6, Monday=2, Saturday=7, Sunday=1, Thursday=5, Tuesday=3, Wednesday=4}

Example 2

import java.util.*;
public class JavaCalendargetDisplayNameExample3 {
   public static void main(String[] args) {
      // create calendar and locale
      Calendar cal1 = Calendar.getInstance();
      Locale loc = Locale.getDefault();
      // geting all the months using getDisplayName method 
      //and assigning it to a String tree set
      Map< String, Integer> tset = 
      cal1.getDisplayNames(Calendar.MONTH, Calendar.LONG, loc);
      NavigableMap< String, Integer> Map =  
      new TreeMap< String, Integer>(tset);
      // print the results
      System.out.printf("List of Months are :%n%s%n", Map);
   }
}

Test it Now

Output:

List of Months are :
{April=3, August=7, December=11, February=1, January=0, July=6, June=5, March=2, May=4, November=10, October=9, September=8}

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