| Date and Time: |
|---|
| Date and time, An essential factor in a program for implementing many concepts at real-time. Java provides a special class – date Class in the java.util Package (sort of catch-all for handy utilities). |
| Date provides methods for examining and manipulating date and time. Time in java is measured in milliseconds since January 1, 1970. Java attempts to handle time from the system with which it is interfacing. UTC is coordinated Universal Time, which seems to be the worldwide standard. |
| Note : In the date class, dates before January 1, 1970 are generally not usable. |
| Methods | Purpose |
|---|---|
| UTC(int, int, int, int, int) | Calculates a UTC value from YMDHMS |
| after(Date) | check whether this date comes after the specified date |
| before(Date) | Checks whether this date comes before the specified date |
| equals(Object) | Compares this object against specified object |
| getDate() | Returns the day of the month |
| getDay() | Returns the day of the week |
| getHours() | Returns the hour |
| getMinutes() | Returns the minute |
| getMonth() | Returns the month |
| getSeconds() | Returns the seconds |
| getTime() | Returns the time in milliseconds since the epoch |
| getTimezoneOffset() | Returns the time zone offset in minutes for the current locale that is appropriate for this time |
| getYear() | Returns the year after 1900 |
| hashCode() | Compares a number that is used when storing objects in hash tables. |
| parse(String) | given a string representing a time, parses it and returns the time value. |
| setDate(int) | Sets the date |
| setHours(int) | Sets the hour |
| setMinutes(int) | Sets the minute |
| setMonth(int) | Sets the month |
| setSecondsint() | Sets the seconds |
| setTime(int) | Sets the time |
| setYear(int) | Sets the year |
| toGMTString() | Converts a date to string object, using the internet GMT conversions. |
| toLocalString() | Converts a date to string object, using the locale conversions. |
| toString() | Converts a date to string object, using UNIX conversions. |
import java.util.*; public class ForgetCodeTime { public static void main (string args[]) { BDay b; b = new BDay(args[0]); b.printBDayInfo(); } } class BDay { String sign; Date d; Public BDay(String date) { Date c; int year; d = new Date(date); year = d.getyear(); while (true) { c = new Date(“20 Jan“ + year); If(d.before(c)) { sign = new String(“Capricorn”); break; } c = new Date(“19 Feb“ + year); If(d.before(c)) { sign = new String(“Aquarius”); break; } c = new Date(“21 Mar“ + year); If(d.before(c)) { sign = new String(“Pisces”); break; } c = new Date(“20 Apr“ + year); If(d.before(c)) { sign = new String(“Aries”); break; } c = new Date(“21 May“ + year); If(d.before(c)) { sign = new String(“Taurus”); break; } c = new Date(“21 Jun“ + year); If(d.before(c)) { sign = new String(“Gemini”); break; } c = new Date(“23 Jul“ + year); If(d.before(c)) { sign = new String(“Cancer”); break; } c = new Date(“23 Aug“ + year); If(d.before(c)) { sign = new String(“Leo”); break; } c = new Date(“23 Sep“ + year); If(d.before(c)) { sign = new String(“Virgo”); break; } c = new Date(“23 Oct“ + year); If(d.before(c)) { sign = new String(“Libra”); break; } c = new Date(“23 Nov“ + year); If(d.before(c)) { sign = new String(“Scorpio”); break; } c = new Date(“23 Dec“ + year); If(d.before(c)) { sign = new String(“Sagittarius”); break; } c = new Date(“31 Dec“ + year); If(d.before(c)) { sign = new String(“Capricorn”); break; } } } Public void printBDayInfo() { Date t,c; t = new Date(); t.setHours(0); t.setMinutes(0); t.setSeconds(0); c = new Date(t.getYear(), (d.getMonth() – 1), d.getDate()); System.out.println(“You were born on: “+ (d.getMonth()+1) + “/” + d.getDate() + “/” + d.getYear()); System.out.println(“Your sign is : “ + sign); If (c.before(t)) System.out.println(“ your birthday is already occurred this year”); Else If (c.after(t)) style='color:gray'> System.out.println(“ your birthday is yet to occur this year “); Else System.out.println(“TODAY IS YOUR BIRTHDAY”); } }