/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
class A {
	int i;
}
 
class B extends A {
	int i;
}
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		B b = new B();
		A a = b;
 
		a.i = 1;
		b.i = 2;
		System.out.println(a.i);
		System.out.println(b.i);
		System.out.println("Czy to ten sam obiekt? " + 
			(a == b ? "Tak." : "Nie."));
	}
}

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