The clear(int cal_field) method in Calendar class is used to set a given calendar field value and the time value of this Calendar undefined.
Note: Implementation of calendar class may use default field values for date and time calculations.
Syntax:
public final void clear(int cal_field)
Parameters: The method takes one parameter cal_field of Integer type and refers to the field value that is to be made undefined.
Return Value: The method does not return any value.
Below programs illustrate the working of clear() Method of Calendar class:
Example 1:
// Java Code to illustrate clear() Method import java.util.Calendar;
public class CalendarClassDemo {
public static void main(String args[])
{
// Creating a calendar object
Calendar calndr = Calendar.getInstance();
// Displaying the Current Date
System.out.println( "Current Date&Time: "
+ calndr.getTime());
// Clear method for undefining the month
// of the calendar
calndr.clear(Calendar.MONTH);
// Displaying the final result
System.out.println( "After clear method: "
+ calndr.getTime());
}
} |
Current Date&Time: Wed Mar 27 09:03:26 UTC 2019 After clear method: Sun Jan 27 09:03:26 UTC 2019
Example 2:
// Java Code to illustrate clear() Method import java.util.Calendar;
public class CalendarClassDemo {
public static void main(String args[])
{
// Creating a calendar object
Calendar calndr = Calendar.getInstance();
// Displaying the Current Date
System.out.println( "Current Date&Time: "
+ calndr.getTime());
// Clear method for undefining the year
// of the calendar
calndr.clear(Calendar.YEAR);
// Displaying the final result
System.out.println( "After clear method: "
+ calndr.getTime());
}
} |
Current Date&Time: Wed Mar 27 09:03:32 UTC 2019 After clear method: Fri Mar 27 09:03:32 UTC 1970
Reference: https://docs.oracle.com/javase/7/docs/api/java/util/Calendar.html#clear(int)