/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
class Super {}
 
class Sub extends Super {}
 
class GenericArrayHolder<T extends Super>
{
    T[] array;
 
    @SuppressWarnings("unchecked")
    GenericArrayHolder(int n)
    {
        array = (T[]) new Super[n];
    }
 
    void set(int i, T t)
    {
        array[i] = t;
    }
}
 
class Test
{
    public static void main(String[] args)
    {
        GenericArrayHolder<Sub> h = new GenericArrayHolder<>(10);
        //h.set(3, new Sub());
        h.array[3] = null; // ClassCastException
    }
}

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