Date and calendar java -

class employee { private date doj;  public employee (date doj) { this.doj=doj; } public date getdoj() { return doj; } }   class testemployeesort { public static list<employee> getemployees() {   list<employee> col=new arraylist<employee>();   col.add(new employee(new date(1986,21,22)); } } 

in above code have used date set date. want know how use calendar function this. know can use getinstance() , set date. don't know how implement it. please me know how set date using calendar function

string months[] = { "jan", "feb", "mar", "apr", "may", "jun", "jul", "aug",         "sep", "oct", "nov", "dec" };  calendar calendar = calendar.getinstance();  system.out.print("date: "); system.out.print(months[calendar.get(calendar.month)]); system.out.print(" " + calendar.get(calendar.date) + " "); system.out.println(calendar.get(calendar.year));  system.out.print("time: "); system.out.print(calendar.get(calendar.hour) + ":"); system.out.print(calendar.get(calendar.minute) + ":"); system.out.println(calendar.get(calendar.second));  calendar.set(calendar.hour, 10); calendar.set(calendar.minute, 29); calendar.set(calendar.second, 22);  system.out.print("updated time: "); system.out.print(calendar.get(calendar.hour) + ":"); system.out.print(calendar.get(calendar.minute) + ":"); system.out.println(calendar.get(calendar.second));