6. Calendar methods

• Common methods of the Calendar and GregorianCalendar classes

  
  set(intYear, intMonth, ...)
  set(intField, intValue)
  setTime(Date) // use Date object to update the date/time
  add(intField, intValue) // adds/subtracts the intValue
  roll(intField, intValue) // same as add() but does not affect other fields
  roll(intField, booleanValue) // +1 if true, -1 if false
  get(intField)
  getTime() // convert GregorianCalendar to Date
  
  

  where the intField is one of the Calendar class fields.