What use are constructors in abstract classes? [duplicate]

Answer 1

An example:

public abstract class BaseClass
{
    private String member;

    public BaseClass(String member)
    {
        this.member = member;
    }

    ... abstract methods...
}

public class ImplementingClass extends BaseClass
{
    public ImplementingClass(String member)
    {
        /* Implementing class must call a constructor from the abstract class */
        super(member);
    }

    ... method implementations...
}