WebHow to loop over lists. We showed how to loop over lists earlier in this book, but it’s worth showing the syntax again. Given a List like this: val names = List ( "Joel", "Chris", "Ed" ) you can print each string like this: for (name <- names) println (name) This is what it looks like in the REPL: scala> for (name <- names) println (name ... WebNov 15, 2016 at 2:15 I'm not sure this works, but worth to try SQL: select max (date) as mdate, id from tmp_table group by id; – evgenii Nov 15, 2016 at 23:06 Add a comment 2 Answers Sorted by: 4 You can try agg () with the max function : import static org.apache.spark.sql.functions.* df.groupBy ("id").agg (max ("date")) Share Improve this …
Functions and Methods in Scala Baeldung on Scala
WebJul 11, 2014 · if someone needs the date in a format so that to be able to add to PostgreSQL here we go: import java.util.Calendar val calendar = Calendar.getInstance val now = new Timestamp (calendar.getTime.getTime) or in one line: val now = new Timestamp (java.util.Calendar.getInstance.getTime.getTime) Share Improve this answer Follow WebJul 30, 2024 · You shouldn't use java.util.Date nor java.text.SimpleDateFormat since when Java 8 was released they were replaced with newer, easier to use and immutable alternatives: java.time.LocalDate and java.time.format.DateTimeFormatter.. For example, LocalDate has a very convenient method minusDays, which you could use: import … dailey chevy bad credit financing
Simple Tutorial for Handling Date and Time in Scala …
WebSep 29, 2016 · import java.text.SimpleDateFormat val minuteFormat = new SimpleDateFormat ("MM") val yearFormat = new SimpleDateFormat ("YYYY") val … Web5 Answers. => is syntactic sugar for creating instances of functions. Recall that every function in scala is an instance of a class. For example, the type Int => String, is equivalent to the type Function1 [Int,String] i.e. a function that takes an argument of type Int and returns a String. scala> val f: Function1 [Int,String] = myInt => "my ... WebNov 27, 2024 · From my research I've found below code to get the file that is 2 days older using Scala: import java.nio.file._ import java.time._ import java.time.temporal.ChronoUnit.DAYS val isMoreThan2DaysOld = Files.getLastModifiedTime (path).toInstant.plus (2, DAYS) isBefore Instant.now But this code doesn't work for a file … dailey chiropractic mooresville in