Can abstract class constructors with parameters be created or not?

Constructors with parameters can be created in an abstract class. An abstract class can have any constructors — both parameterless and with parameters. This is necessary so that when inheriting, derived classes can call these constructors to initialize the base part of the object.

For example, in C#:

abstract class Base
{
    protected int value;
    public Base(int val) { value = val; }
}

class Derived : Base
{
    public Derived(int val) : base(val) {}
}

Thus, having constructors with parameters in an abstract class is a normal practice for passing data to the base part of the object.