1.scala 类的继承
package smart.iot
//父类 animal 有三个参数
class animal(var name:String,var age:Int,var eat:String) {
}
//子类 panda 继承父类 animal
class Panda( name:String, age:Int, eat:String,var blackeye:String) extends animal(name,age,eat)
{
}
object load
{
def main(args: Array[String]): Unit = {
var panda=new Panda("panpan",2,"竹子","2个黑眼圈");
println("panda "+"Name"+panda.name+"age:"+panda.age+"eat:"+panda.eat+"blackeye:"+panda.blackeye)
}
}
2.方法的重写和参数的重写 override
package smart.iot
//父类 animal 有三个参数
class animal(var name:String,var age:Int,var eat:String) {
val wing:String="啊啊啊";
def talk()=println("say english");
}
//子类 panda 继承父类 animal
class Panda( name:String, age:Int, eat:String,var blackeye:String) extends animal(name,age,eat)
{
override val wing:String="熊猫大侠";
override def talk()=println("讲中文");
}
object load
{
def main(args: Array[String]): Unit = {
var panda=new Panda("panpan",2,"竹子","2个黑眼圈");
println("panda "+"Name"+panda.name+"age:"+panda.age+"eat:"+panda.eat+"blackeye:"+panda.blackeye)
println(panda.wing)
panda.talk()
}
}
resout:
panda Namepanpanage:2eat:竹子blackeye:2个黑眼圈
熊猫大侠
讲中文
scala 基础九 scala 类的扩展和继承extends override
原文：http://www.cnblogs.com/IChing/p/7111142.html