Defensive copy of Calendar

Question

Been trying to find the best way to implement a method that makes a defensive copy of a Calendar object.

eg:

public void setDate(Calendar date) {
            


        

Answer 1

What about the below ?

public synchronized void setDate(Calendar date) {
    // What to do.... 
    Calendar anotherCalendar = Calendar.getInstance();
    anotherCalendar.setTimeInMillis(date.getTimeInMillis());
}

The correct usage in code of synchronized depends on your use case.