Scala的泛型类和泛型特质

1.Scala泛型类

object Test5 {
  //格式
  //定义:类名[T]
  //使用:类名[类型]
  abstract class A[T](){
    val data : Array[T]
  }
  class A1 extends A [Int]{
    override val data : Array[Int]=Array(1,2,3)
  }
  class A2 extends A[String]{
    override val data=Array("a","b","c")
  }
  def main(args: Array[String]): Unit = {
    val a = new A1()
    val rs = a.data(1)
    println(rs)

    val b = new A2()
    val rs1 = b.data(1)
    println(rs1)
  }
}

2.Scala泛型trait

//泛型trait
//定义格式:trait 特质名[泛型]
//使用格式:特质名[具体的类型]
object Test6 {
  trait Logger[T]{
    val name:T
    def show(b:T):Unit ={
      println(b)
    }
  }
  class A extends Logger[String]{
    override val name = "test"
  }
  def main(args: Array[String]): Unit = {
    val a1 = new A()
    a1.show("hi")
  }
}