Scala trait exercise

object  practice  {
    

  abstract class Coder {
    
    var name: String = _
    var age: Int = _

    def eat(): Unit

    //  Skill 
    def skill(): Unit

  }

  class JavaCoder extends Coder {
    
    override def eat(): Unit = println("Java Programmers eat cabbage , Rice porridge ")

    override def skill(): Unit = println(" Master Java")
  }

  class PythonCode extends Coder {
    
    override def eat(): Unit = println("Python Programmers eat cabbage , Eat rice porridge ")

    override def skill(): Unit = println(" Master Python")
  }

  trait BigData {
    
    def learningBigData(): Unit = {
    
      println(" After the dark horse ")
      println(" Mastered ：Hadoop、Zookeeper、HBase、Hive、Spark、Flink etc. ")
      println(" Project experience ： Enterprise class 360° Full range of user portraits 、 Hundreds of billions of warehouses 、 Dark horse recommendation system 、 Telecommunication signal strength diagnosis ")
    }
  }

  class PartJavaCode extends JavaCoder with BigData {
    
    override def eat(): Unit = {
    
      super.eat()
      println(" Master Java + BigData The programmer , Eat beef , And beef soup ")
    }

    override def skill(): Unit = {
    
      super.skill()
      learningBigData()
    }
  }

  class PartPythonCoder extends PythonCode with BigData {
    
    override def eat(): Unit = {
    
      super.eat()
      println(" Master Python + BigData The programmer , Eat mutton , Drink mutton soup ")
    }

    override def skill(): Unit = {
    
      super.skill()
      learningBigData()
    }
  }

  def main(args: Array[String]): Unit = {
    
    println(" Ordinary Java The programmer ")
    val jc = new JavaCoder
    jc.name = " Xyy  "
    jc.age = 20
    println(jc.name, jc.age)
    jc.eat()
    jc.skill()

    println("-" * 20)

    println(" Master Java + BigData The programmer ")
    val pjc = new PartJavaCode
    pjc.name = " Brother dark horse "
    pjc.age = 30
    println(pjc.name, pjc.age)
    pjc.eat()
    pjc.skill()
  }

}