Dream------scala--scala内部类实战

class Outer（val name:String）{ outer =>
         class Inner(val name:String){
                 def foo(b:Inner) = println(
      "Outer : " +outer.name + "Inner :" +b.name
) 
}           
}            

object OOPInScala{
         def main(args : Array[String]){
               val outer1 = new Outer("Hadoop")
               val outer2 = new Outer("Spark")
               val inner1 = new outer1.Inner("java")
               val inner2 = new outer2.Inner("scala")
               //这里inner1的foo不能引用inner2，inner2也不能引用inner1
               //也就是说inner1是从属于inner1这个实例的。因为你new的时候用的是outer1，并且赋值给了inner1.
               inner1.foo(inner1)
               inner2.foo(inner2)
               
}
}