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/*ÄÚ²¿ÀàʹÓÃʾÀý*/
package demo;
class Outer{
int outer_i=100;
static int outer_j=200;
final int outer_k=300;
void test(){
Inner in = new Inner();
in.display();
}
static class Inner{
void display(){
  ......
/*¶à̬ʾÀý*/
package demo;
class AA {
public void f(){
System.out.println("f in AA");
}
}
class BB extends AA{
public void f(){
System.out.println("f in BB");
}
}
public class Test_Dt {
public static void main(String[] args) ......