Scala中的多个构造函数应该调用不同的超级方法

class Animal(val name: String) {
  def eat() {
    println(s"$name is eating.")
  }
}

class Dog(override val name: String, val breed: String) extends Animal(name) {
  override def eat() {
    println(s"$name the $breed is eating.")
  }
}

class Cat(override val name: String, val color: String) extends Animal(name) {
  override def eat() {
    println(s"$name the $color cat is eating.")
  }
}

object Main {
  def main(args: Array[String]): Unit = {
    val dog = new Dog("Buddy", "Golden Retriever")
    val cat = new Cat("Fluffy", "White")

    dog.eat()
    cat.eat()
  }
}