scala regex code

HelloWorld.scala

import scala.util.matching.Regex
object HelloWorld {

    def main(args: Array[String]) {
        val pattern = new Regex("Id=(.*)")
        val str = "http://www.xyz.com?Id=798"
        
        val res = pattern.findAllMatchIn(str)
        
        res.foreach { m  => 
                     
                         
                         println("Grp=" + m.group(1))
                     
                     
    
                    }
    }
}