If you attempt to insert the price field into MySQL without first converting the object from a Scala BigDecimal to a Java BigDecimal, you’ll get an exception that looks like this:[error] play - Cannot invoke the action, eventually got an error: java.lang.ClassCastException: scala.math....
import scala.jdk.CollectionConverters._ object myObject { def main(args: Array[String]): Unit = { val javaSet = new java.util.HashSet[Int]() javaSet.add(32) javaSet.add(100) javaSet.add(111) javaSet.add(100) val scalaString = javaSet.toString println("The string conversion of ...
Here, we will try to feed duplicate elements to the set in Java. importscala.collection.JavaConversions._objectMyClass{defmain(args:Array[String]):Unit={valjavaSetShorts=newjava.util.HashSet[Short]()javaSetShorts.add(65)javaSetShorts.add(541)javaSetShorts.add(-31234)javaSetShorts.add(0)jav...
As a quick note, I just got a little bit better about how to log stack traces when writing Java or Scala code. This tutorial shows the best way I know to log exceptions. I’ll useScalacode here, but it converts easily to Java. In Scala I used to get the text from a stack...
Let’s dive in and unravel the simple yet crucial task of converting boolean to string in Java. Using String.valueOf() Method One of the simplest and most effective ways to convert a boolean to a string in Java is by using the String.valueOf() method. This method is part of the ...
java.lang.NoClassDefFoundError: scala/convert/convert/DecorateAsScala，但pom.xml中的scala-library将...
import scala.util.{Try, Success, Failure} object MyClass { def makeInt(str: String): Try[Int] = Try(str.trim.toInt) def main(args: Array[String]) { val str = "scala" val number = makeInt(str) println(number) } } Producción : Failure (java.lang.NumberFormatException: For input...
Unfortunately, we can’t create a ZonedDateTime object directly from milliseconds, so we first need to create an Instant object:scala> val instant = Instant.ofEpochMilli(millis) instant: java.time.Instant = 2023-10-20T15:09:36.315ZCopy...
我在Java测试中创建EmbeddedKafkCaluster,但得到以下异常,但我添加了kafka_2.12个依赖项,它们具有scala依赖项。 Java版本:11 添加了以下依赖项 <!--Kafka Embedded Cluster dependencies --> <dependency> <groupId>org.apache.kafka</groupId> <artifactId>kafka_2.12</artifactId> ...
If you want to add a new feature, please first search for existing GitHub issues, or create a new one to discuss the feature and get feedback.Important Gson's main focus is on Java. Using it with other JVM languages such as Kotlin or Scala might work fine in many cases, but language...