Which one is correct about the following class?

$$

public class TestClass $\{$

$$ int instanceVariable;

$$ public void setInstanceVariable$($int passedInstanceVariable$)\{$

$$instanceVariable $=$ passedInstanceVariable;

$\}$

$\}$

$$

We cannot create objects from this class because it does not have any constructor.

We can create objects from this class because object creation does not necessarily need a constructor.

We can create objects from this class because it is non$-$static.

We can create objects from this class because "Object" class has a default constructor

None of them