Wednesday 14 November 2018

How to use toInstant() method of java.sql.Date class | Java Date and Time


Click here to watch on Youtube: 
https://www.youtube.com/watch?v=DEekRueftM8&list=UUhwKlOVR041tngjerWxVccw

SqlDateDemo.java

import java.sql.Date;
import java.time.Instant;

public class SqlDateDemo
{
    public static void main(String[] args)
    {
        long millis = System.currentTimeMillis();
        java.sql.Date date = new Date(millis);
        System.out.println(date);

        /*
         * This method always throws an UnsupportedOperationException
         * and should not be used because SQL Date values do not have
         * a time component.
         */

        Instant instant = date.toInstant();
        System.out.println(instant);
    }

}

Output

2018-10-15
Exception in thread "main" java.lang.UnsupportedOperationException
    at java.sql.Date.toInstant(Date.java:304)
    at SqlDateDemo.main(SqlDateDemo.java:17)

Click the below link to download the code:
https://sites.google.com/site/ramj2eev2/java_basics/SqlDateDemo_toInstant.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava_2018/SqlDateDemo_toInstant

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/4cfac93378c4f9d33f18bb5083115d18778294de/BasicJava_2018/SqlDateDemo_toInstant/?at=master

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