Program to explain that the Non-generic class can be the Super class of a Generic subclass

// Program to explain that the Non-generic class can be 
// the Super class of a Generic subclass.
class  NonGen 
{
int num;
NonGen(int i) 
{
 num = i;
}
int getNumber() 
{
 return num;
}
}
class  Gen<T> extends  NonGen 
{ 
T ob; 
  
Gen(T o, int i)
{
 super(i);
 ob = o; 
} 

T getObject() 
{ 
 return ob; 
} 
} 

public class  GenericTest15
{ 
public static void main(String args[ ]) 
{ 
 Gen<String> w = new Gen<String>("NILS", 23);
  
 System.out.print(w.getObject() + " ");
 System.out.println(w.getNumber());
} 
}

Output:
NILS  23