コード
scala> abstract class Engineer {
| def work():Unit
| }
defined class Engineer
scala> class Programmer(name:String,age:Int) extends Engineer {
| def work() = printf("%s(%d)さんはコーディングします",name,age)
| }
defined class Programmer
scala> val p = new Programmer("taro", 25)
p: Programmer = Programmer@c32fc9
scala> p.work
taro(25)さんはコーディングします
scala> abstract class Engineer {
| def work():Unit
| def study() = printf("勉強します")
| }
defined class Engineer
scala> class Programmer(name:String,age:Int) extends Engineer {
| def work() = printf("%s(%d)さんはコーディングします",name,age)
| override def study() = println("プログラミングの勉強をします")
| }
defined class Programmer
scala> abstract class Engineer(val name:String) {
| println("Engineer.name = " + name)
|
| def work():Unit
| }
defined class Engineer
scala> class Programmer(name:String,age:Int) extends Engineer(name) {
| println("Programmer.name=" + name)
| println("Programmer.age=" + age)
|
| def work() = printf("%s(%d)さんはコーディングします",name,age)
| }
defined class Programmer
scala> class Programmer(name:String,age:Int) extends Engineer(name) {
| println("Programmer.name=" + name)
| println("Programmer.age=" + age)
|
| def work() = printf("%s(%d)さんはコーディングします",name,age)
| }
defined class Programmer
scala> val p = new Programmer("taro", 30)
Engineer.name = taro
Programmer.name=taro
Programmer.age=30
p: Programmer = Programmer@77b29a
