gistfile1.scala

class A(n:Int) {
  println(n)
}

cookie:tmp rnorris$ javap -classpath . A
Compiled from "test.scala"
public class A extends java.lang.Object{
    public A(int);
}

---

class A(n:Int) {
  println(n)
  def x = n
}

cookie:tmp rnorris$ javap -private -classpath . A
Compiled from "test.scala"
public class A extends java.lang.Object{
    private final int n;
    public int x();
    public A(int);
}