package test;
class A {
int x = 1;
class B
{
int x = 2;
void func() {
int x = 3;
System.out.println( x+"_"+this.x+"_"+A.this.x );
}
}
public void method(){
B b=new B();
b.func();
}
}
public class ABC {
public static void main(String[] args) {
A a=new A();
a.method();