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Java Clock assignment

1.Display the local date and time on the page.

2.The Clock need to be in AM PM format.

3.The time element on the page needs to be update automatically every second to give a clock update effect.

4.You are to create a way for the user to change the text color for the date and time element on the page.

2 個解答

  • HUNG
    Lv 7
    1 十年前

    Please see the following web site:

    Using the Java Data Class, you can easily achieve the aims that you want.

    public class Date

    extends Object

    implements Serializable, Cloneable, Comparable

    The class Date represents a specific instant in time, with millisecond precision.

    Prior to JDK 1.1, the class Date had two additional functions. It allowed the interpretation of dates as year, month, day, hour, minute, and second values. It also allowed the formatting and parsing of date strings. Unfortunately, the API for these functions was not amenable to internationalization. As of JDK 1.1, the Calendar class should be used to convert between dates and time fields and the DateFormat class should be used to format and parse date strings. The corresponding methods in Date are deprecated.

    In all methods of class Date that accept or return year, month, date, hours, minutes, and seconds values, the following representations are used:

    A year y is represented by the integer y - 1900.

    A month is represented by an integer from 0 to 11; 0 is January, 1 is February, and so forth; thus 11 is December.

    A date (day of month) is represented by an integer from 1 to 31 in the usual manner.

    An hour is represented by an integer from 0 to 23. Thus, the hour from midnight to 1 a.m. is hour 0, and the hour from noon to 1 p.m. is hour 12.

    A minute is represented by an integer from 0 to 59 in the usual manner.

    A second is represented by an integer from 0 to 61; the values 60 and 61 occur only for leap seconds and even then only in Java implementations that actually track leap seconds correctly. Because of the manner in which leap seconds are currently introduced, it is extremely unlikely that two leap seconds will occur in the same minute, but this specification follows the date and time conventions for ISO C.

    Datepublic Date(int year,

    int month,

    int date,

    int hrs,

    int min,

    int sec)

    Deprecated. As of JDK version 1.1, replaced by Calendar.set(year + 1900, month, date, hrs, min, sec) or GregorianCalendar(year + 1900, month, date, hrs, min, sec).

    Allocates a Date object and initializes it so that it represents the instant at the start of the second specified by the year, month, date, hrs, min, and sec arguments, in the local time zone.


    year - the year minus 1900.

    month - the month between 0-11.

    date - the day of the month between 1-31.

    hrs - the hours between 0-23.

    min - the minutes between 0-59.

    sec - the seconds between 0-59.

    See Also:


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  • 1 十年前

    Using the Java Date Class, you can display the local date and time on the page.

    Please see the relevant information from the sun java website.

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