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Else Short Hand If For Loop For-Each Loop. Arrays Loop Through an Array Multidimensional Arrays. abstract boolean break byte case catch char class continue default do double else enum extends final finally float for if implements import instanceof int interface long new package private protected public return short static super switch this throw throws try void while. Class Description LocalDate Represents a date year, month, day yyyy-MM-dd LocalTime Represents a time hour, minute, second and nanoseconds HH-mm-ss-ns LocalDateTime Represents both a date and a time yyyy-MM-dd-HH-mm-ss-ns DateTimeFormatter Formatter for displaying and parsing date-time objects.
I have been looking for this since a long time, turns out that Eposh converter does it easily:. You are using troublesome old date-time classes that are now legacy, supplanted by the modern java. time classes. Apparently you are storing a moment in your database in a column of some integer type.
That is unfortunate. You should instead be using a column of a type such as the SQL-standard TIMESTAMP WITH TIME ZONE. But, for this Answer, we will work with what we have. If your records represent moments with a resolution of milliseconds, and you want all the records for an entire day, then we need a time range.
We must have a start moment and a stop moment. Your query has only a single date-time criterion where it should have had a pair. The LocalDate class represents a date-only value without time-of-day and without time zone. A time zone is crucial in determining a date. For any given moment, the date varies around the globe by zone.
If no time zone is specified, the JVM implicitly applies its current default time zone. That default may change at any moment, so your results may vary. Never use the letter abbreviation such as EST or IST as they are not true time zones, not standardized, and not even unique! Better to be explicit, as the default may be changed at any moment during runtime by any code in any thread of any app within the JVM. Or specify a date. You may set the month by a number, with sane numbering for January-December.
Or, better, use the Month enum objects pre-defined, one for each month of the year. Tip: Use these Month objects throughout your codebase rather than a mere integer number to make your code more self-documenting, ensure valid values, and provide type-safety. With a LocalDate in hand, we next need to transform that into a pair of moment, the start and stop of the day.
Do not assume the day starts at time-of-day. Because of anomalies such as Daylight Saving Time DST , the day may start at another time such as So let java.
time determine the first moment of the day. We pass a ZoneId argument to LocalDate::atStartOfDay to look up any such anomalies. The result is a ZonedDateTime. Generally the best approach to defining a span of time is the Half-Open approach where the beginning is inclusive while the ending is exclusive. So a day starts with its first moment and runs up to, but not including, the first moment of the next day.
Our query for an entire day cannot make use of SQL command BETWEEN. That command is Fully-Closed  both beginning and ending are inclusive where as we want Half-Open [. Your column is poorly named. Avoid any of the thousand words reserved by various databases. But we have ZonedDateTime objects in hand, while your database apparently is storing integers as discussed above. If you had defined your column properly we could simply pass the ZonedDateTime objects with any JDBC driver supporting JDBC 4.
But instead we need to get a count-from-epoch in whole seconds. I will assume your epoch reference date is the first moment of in UTC. Beware of possible data loss, as the ZonedDateTime class is capable of nanosecond resolution. Any fractional second will be truncated in the following lines. When you retrieve your integer values from the ResultSet , you can transform into Instant objects always in UTC , or into ZonedDateTime objects with an assigned time zone.
The java. time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java. The Joda-Time project, now in maintenance mode , advises migration to the java.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR The ThreeTen-Extra project extends java. time with additional classes. This project is a proving ground for possible future additions to java. You may find some useful classes here such as Interval , YearWeek , YearQuarter , and more. First of all, you're not leveraging the advantage of using a PreparedStatement. I would first suggest that you modify your PreparedStatement as follows:.
You can then use statement. For conversion to timestamp , have a look at the following javadocs:. setTimeStamp Timestamp. You should probably provide a valid time as argument, or change the condition.
In case of timestamp use java. Timestamp and PreparedStatement. setTimestamp , ie:. new Date timestamp. getTime should work, but the new fancy Java 8 way which may be more elegant and more type safe, as well as help lead you to use the new time classes is to call Date.
from timestamp. Do not rely on the fact that Timestamp itself is an instance of Date ; see explanation in the comments of another answer.
I feel obliged to respond since other answers seem to be time zone agnostic which a real world application cannot afford to be. To make timestamp-to-date conversion correct when the timestamp and the JVM are using different time zones you can use Joda Time's LocalDateTime or LocalDateTime in Java8 like this:. The example below assumes that the timestamp is UTC as is usually the case with databases.
In case your timestamps are in different timezone, change the timezone parameter of the toDate statement. In my case, I was expecting the "" instead of the "". So the top result worked better for me. Stack Overflow for Teams — Start collaborating and sharing organizational knowledge. Create a free Team Why Teams? Learn more about Collectives. Learn more about Teams. How to convert TimeStamp to Date in Java? Ask Question. Asked 10 years, 1 month ago. Modified 8 days ago. Viewed k times.
How do I convert 'timeStamp' to date after I get the count in Java? currentTimeMillis ; java. Date timeStamp. getTime ; System. forName "com. executeQuery ; while result. println exc. getMessage ; } return count; } } This is my database: Here the output I got was 0, but the equivalent query returns 3. Why do I get 0? java date jdbc timestamp. Improve this question. edited Aug 7 at Mark Rotteveel asked Aug 7, at Krishna Veni Krishna Veni 2, 8 8 gold badges 26 26 silver badges 53 53 bronze badges.
Duplicate of stackoverflow. Can you show us examples of what the table data looks like? date ,, and status have Q,Q,Q — Krishna Veni. Duplicate of this Question, How to convert from java. Timestamp to java.
The title of this Question is a red herring. The real problem is the improper use of a PreparedStatement with incorrect syntax. You cannot embed Java variables in the text of your SQL string. Instead, embed? in the SQL string, then call the set methods to pass values to the PreparedStatement.
See the correct Answer by Sujay and Answer by tenorsax. Show 5 more comments. Sorted by: Reset to default. Highest score default Trending recent votes count more Date modified newest first Date created oldest first. println date ;. Improve this answer. edited May 24, at Ojonugwa Jude Ochalifu answered Aug 7, at Alex Coleman Alex Coleman 7, 1 1 gold badge 20 20 silver badges 31 31 bronze badges. vs06 What makes you think it is deprecated?
The latest java 7 and 8 docs both say otherwise docs. html getTime and docs. html getTime-- — Alex Coleman. This will produce an incorrect result if the Timestamp time zone and the JVM timezone are different. How to get this formatted to Is the Timestamp class required?
currentTimeMillis ; — Sujit. Add a comment. getTimeInMillis ;. edited Jan 10, at answered Apr 5, at VincentLamoute VincentLamoute 1 1 gold badge 9 9 silver badges 16 16 bronze badges.
Why did you multiply it by ? Beacause the initialization of the date is in milliseconds and the timestamp is in seconds! Same think for all other convertion! It's good? getTime ;. answered Dec 8, at Alberto Cerqueira Alberto Cerqueira 1, 14 14 silver badges 16 16 bronze badges.
format new java. edited Apr 15, at answered Apr 15, at AbdelKh AbdelKh 6 6 silver badges 19 19 bronze badges. tl;dr LocalDate. now ZoneId. atStartOfDay ZoneId.
A timestamp or time stamp is the current time when an event gets performed or recorded by a computer or digital camera. The current date and time are registered to a file and logs when data is created, executed, modified, or removed. A computer records the date and time when an action is taken over a document or folder. Another example of a timestamp is that a digital camera records the date and time of a photo when clicked.
In Java , a timestamp can be easily converted to date using a constructor of java. Date class. A constructor of Date class takes a parameter of long value. So, it is require to convert a Timestamp object into a long value using getTime method of java. Timestamp class. By passing the Timestamp object to Date constructor, we can convert the device current timestamp value to date.
Consider the following example:. The getInstance method of java. Calendar class is a static method, which is used with calendar object to get the instance of calendar based on the current time zone set by Java Runtime Environment. Python has several modules like time, datetime and calendar that deal with various dates and times format.
A UNIX timestamp passed out thousands of seconds between a particular date and time since January 1, , at UTC. We can get these timestamps and convert them into the current date and time. The module time gives many time-related methods; one of them is time that returns the number of seconds since epoch. The module datetime provides classes that manipulate date and time in an object-oriented way. One such module is datetime. now that returns the number of seconds since epoch in microseconds.
Python also offers a calendar module to get the current timestamp. Using the calendar module, we will use the timegm method to get a timestamp. However, it is not recommended to use a calendar module because you will lose some milliseconds or nanoseconds. We will simply use the fromtimestamp method of a datetime module to get the date from UNIX timestamp. The method datetime. fromtimestamp takes the timestamp value as input parameter and returns the result of local current date and time.
To get datetime in specific format you can use strftime method. The strftime method convert datetime objects into specified string format. An UNIX timestamp can be converted into any specified date format in PHP. There are lots of ways to get current timestamp value in PHP.
These functions returns the date and time in specified string format. time : The time function is one of the popular and widely used function to get current timestamp in PHP. This function doesn't require any argument to get timestamp value. strtotime : The strtotime function is mostly used to get UNIX timestamp value. The "now" string parameter in strtotime function returns current timestamp.
mktime : The mktime function is also used to return UNIX timestamp but it requires set of date parameters such as hour, minute, second, month, day, year. PHP DateTime class provides an object oriented approach to manipulate date and time. These queries are:. At first, we will create a simple table with a column of int type. JavaTpoint offers too many high quality services. Mail us on [email protected] , to get more information about given services.
println date ; } }. Calendar; import java. getInstance ; calendar. setTimeInMillis timestamp. println calendar. getTime ; } }. time ; print timestamp ;. timestamp ; print timestamp ;. timegm time. gmtime ; print timestamp ;. time ; print timestamp ; fromtimestamp timestamp. timestamp using time : timestamp using strtotime : timestamp using mktime : php echo microtime true ;?
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But, for this Answer, we will work with what we have. The title of this Question is a red herring. format myFormatObj ; System. Date package for using date constructor we need Date class and to use timestamp we use Timestamp class. Ashish Saini Ashish Saini 2, 24 24 silver badges 21 21 bronze badges. Your column is poorly named.Arrays in Java Split String method in Java with examples Arrays. To get datetime in specific format you can use strftime method. Java 9 adds some minor features and fixes. Submit Next Question. Instead, embed? Course Price View Course.