Eclipse 您的类作为对象。选择“spark应用程序”后会发生什么？ def main(args:Array[String]) { <some nice code here> } package greeter object Hello extends _Eclipse_Scala

Eclipse 您的类作为对象。选择“spark应用程序”后会发生什么？ def main(args:Array[String]) { <some nice code here> } package greeter object Hello extends

eclipse scala

Eclipse 您的类作为对象。选择“spark应用程序”后会发生什么？ def main(args:Array[String]) { <some nice code here> } package greeter object Hello extends ,eclipse,scala,Eclipse,Scala,您的类作为对象。选择“spark应用程序”后会发生什么？ def main(args:Array[String]) { <some nice code here> } package greeter object Hello extends App { println("Hello, World!") } package greeter object Hello { def main(args:Array[String]) {

您的类作为对象。选择“spark应用程序”后会发生什么？

def main(args:Array[String]) { <some nice code here> }

package greeter
object Hello extends App {
  println("Hello, World!")
}

 package greeter

    object Hello {
        def main(args:Array[String]) { 
          println("Hello, World") 
        }   
    }

    $ sbt
    > eclipse 
    [info] About to create Eclipse project files for your project(s).
    [info] Updating {file:/...path-to-your-project}root...
    [info] Resolving jline#jline;2.12.1 ...
    [info] Done updating.
    [info] Successfully created Eclipse project files for project(s):
    [info] your-project-name

package main.scala

object Main {
  def main(args: Array[String]){
    println("Hello, I am the main object")
  }
}

    <!-- https://mvnrepository.com/artifact/org.apache.spark/spark-core -->
<dependency>
    <groupId>org.apache.spark</groupId>
    <artifactId>spark-core_2.12</artifactId>
    <version>2.4.1</version>
</dependency>

    <!-- https://mvnrepository.com/artifact/org.apache.spark/spark-sql -->
<dependency>
    <groupId>org.apache.spark</groupId>
    <artifactId>spark-sql_2.12</artifactId>
    <version>2.4.1</version>
</dependency>

<!-- https://mvnrepository.com/artifact/org.apache.spark/spark-graphx -->
<dependency>
    <groupId>org.apache.spark</groupId>
    <artifactId>spark-graphx_2.12</artifactId>
    <version>2.4.1</version>
</dependency>