public class Demo
{	
	public static void main(String args[])
	{
		System.out.println("Starting App!");
	}
}

public class Demo
{	
	public static void main(String args[])
	{
		System.out.println("Starting App!");
		Alpha aref = new Alpha();
		aref.pr();
	}
}

class Alpha
{
	int a = 10;
	
	public void pr()
	{
		System.out.println("a: " + a);
	}
}

public class Demo
{	
	public static void main(String args[])
	{
		System.out.println("Starting App!");
		Alpha aref = new Alpha();
		aref.pr();
		
		Beta bref = new Beta();
		bref.show();			// Legal?  If so, what output?
		bref.pr();			// Legal?  If so, what output?
	}
}

class Alpha
{
	int a = 10;
	
	public void pr()
	{
		System.out.println("a: " + a);
	}
}

class Beta extends Alpha
{
	int b = 22;
	
	public void show()
	{
		System.out.println("b: " + b);
	}
}

public class Demo
{	
	public static void main(String args[])
	{
		System.out.println("Starting App!");
		Alpha aref = new Alpha();
		aref.pr();
		
		Beta bref = new Beta();
		bref.show();				// Legal?  If so, what output?
		bref.pr();					// Legal?  If so, what output?
		
		Gamma gref = new Gamma();
		gref.pr();    // Legal?  If so, what output?
		gref.top();  // Legal?  If so, what output?
		gref.show();  // Legal?  If so, what output?
		gref.other(100);  // Legal?  If so, what output?
		gref.other();  // Legal?  If so, what output?
		
		Alpha a2 = (Alpha) new Gamma();
		a2.pr();    // Legal?  If so, what output?
		a2.top();  // Legal?  If so, what output?
		a2.show();  // Legal?  If so, what output?
		a2.other(100);  // Legal?  If so, what output?
		a2.other();  // Legal?  If so, what output?	
	}
}

class Alpha
{
	int a = 10;
	
	public void pr()
	{
		System.out.println("a: " + a);
	}

	public void top()
	{
		System.out.println("top in a: " + a);
	}
}

class Beta extends Alpha
{
	int b = 22;
	
	public void show()
	{
		System.out.println("b: " + b);
	}
}

class Gamma extends Beta
{
	int g = 35;
	
	public void pr()
	{
		System.out.println("g: " + g);
	}
	
	public void other(int x)
	{
		System.out.println("Other: " + x);
	}
}

public class Demo
{	
	public static void main(String args[])
	{
		System.out.println("Starting App!");
		
		Gamma gref = new Gamma();
		gref.meth();
	}
}

class Alpha
{
	int y = 100;
	int z = 1;
	
	public void meth()
	{
		System.out.println("Alpha: " + y + ", " + z);
	}
}

class Beta extends Alpha
{
	int z = 2;
	
	public void meth()
	{
		System.out.println("Beta: " + y + ", " + z);
	}
}

class Gamma extends Beta
{
	int y = 300;
	int z = 3;
	
	public void meth()
	{
		System.out.println("Gamma: " + y + ", " + z);
		
		System.out.println("Gamma: " + y + ", " + super.z);
		
		System.out.println("Gamma: " + super.y + ", " + z);
		
		System.out.println("Gamma: " + this.y + ", " + this.z);
		
		System.out.println("Gamma: " + super.y + ", " + super.z);
		
		System.out.println("Gamma: " + y + ", " + ((Alpha) this).z  );
		
		System.out.println("Gamma: " + ((Beta) this).y + ", " + super.z);
	}
}

public class Demo
{	
	public static void main(String args[])
	{
		System.out.println("Starting App!");
		
		Gamma gref = new Gamma();
		gref.meth();
		
		Alpha aref = (Alpha) gref;
		Beta bref = (Beta) gref;
		
		System.out.println("Accessing Alpha ref z: " + aref.z);
		System.out.println("Accessing Beta ref z: " + bref.z);
		System.out.println("Accessing Gamma ref z: " + gref.z);
		
		System.out.println("Accessing Alpha ref meth: ");
		aref.meth();
		System.out.println("Accessing Beta ref meth: ");
		bref.meth();
		System.out.println("Accessing Gamma ref meth: ");
		gref.meth();
	}
}

class Alpha
{
	int y = 100;
	int z = 1;
	
	public void meth()
	{
		System.out.println("Alpha: " + y + ", " + z);
	}
}

class Beta extends Alpha
{
	int z = 2;
	
	public void meth()
	{
		System.out.println("Beta: " + y + ", " + z);
	}
}

class Gamma extends Beta
{
	int y = 300;
	int z = 3;
	
	public void meth()
	{
		System.out.println("Gamma: " + y + ", " + z);
	}
}

public class Demo
{	
	public static void main(String args[])
	{
		System.out.println("Starting App!");
		
		Gamma gref = new Gamma();
		gref.testing();
	}
}

class Alpha
{
	int y = 100;
	int z = 1;
	
	public void meth()
	{
		System.out.println("Alpha: " + y + ", " + z);
	}
}

class Beta extends Alpha
{
	int z = 2;
	
	public void meth()
	{
		System.out.println("Beta: " + y + ", " + z);
	}
}

class Gamma extends Beta
{
	int y = 300;
	int z = 3;

	public void testing()
	{
		this.meth();
		super.meth();
		((Alpha) this).meth();
		
		System.out.println("-----------------------");
		
		Alpha a2 = (Alpha) this;
		Beta b2 = (Beta) this;
		Gamma g2 = (Gamma) this;
		
		a2.meth();
		b2.meth();
		g2.meth();
	}

	public void meth()
	{
		System.out.println("At start of Gamma: " + y + ", " + z);
//		super.meth();
//		((Alpha) this).meth();	
	}
}