Date class
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The document summarizes key aspects of the java.util.Date class including: 1) The java.util.Date class represents a specific point in time with millisecond precision, though most methods are deprecated in favor of Calendar. 2) The Date class has constructors that allow initializing a date from the current time or from a long value of milliseconds since January 1, 1970. 3) Common methods allow getting/setting the date, comparing dates, converting to string, and more.
![Sample code for Date
package day5;
import java.util.Date;
public class DateClass
{
public static void main(String[] args)
{
Date d = new Date();
System.out.println(d);
}
}
Output :
Tue Jul 01 11:30:18 IST 2014](https://image.slidesharecdn.com/dateclass-140701221005-phpapp02/85/Date-class-7-320.jpg)
Date class
- 2. Date ● The java.util.Date class represents a specific instant in time, with millisecond precision. ● Most of the methods in the class are deprecated in favor of the java.util.Calendar class. ● Date d = new Date();
- 3. Constructors in java Constructor Description Date() This constructor allocates a date object and initializes it so that it represents the time at which was allocated, measured to the nearest milliseconds Date(long date) This constructor allocates a Date object and initializes it to represent the specified number of milliseconds since the standard base time known as “the epoch”, namely january 1,1940, 00:00:00 GMT
- 4. Methods in Date class Method Description Boolean after(Date when) This method tests if this date is after the specified date Boolean before(Date when) This method tests if this date is before the specified date Object clone() This method return a copy of this object. Int compareTo(date anotherDate) This method compares two dates for ordering Boolean equals(object obj) This method compares two dates for equality Long getTime() This method returns the number of milliseconds since january 1, 1970, 00:00:00 GMT represneted by this Date object. Int hasCode() This method returns a hash code value for this object Void setTime(long time) This method sets this Date object to represent a point in time that is time milliseconds after january 1, 1970
- 5. Cont'd Methods Description String toString() This method converts this Date object to string of the form
- 7. Sample code for Date package day5; import java.util.Date; public class DateClass { public static void main(String[] args) { Date d = new Date(); System.out.println(d); } } Output : Tue Jul 01 11:30:18 IST 2014
- 8. Code for comparing dates
- 10. Parsing string to date
- 11. Sample output
- 12. Any queries?
- 13. Thank you