Some of the syntax of inheritance is closer to C++ than Java:

1. a colon is used instead of extends;
2. special syntax is employed to invoke a constructor from a constructor;
3. base is used instead of super.

These points are illustrated by the following classes:

public class Figure
{
    private int iX;
    private int iY;
    public Figure()
        : this(0, 0)                              // 2
    {
    }
    public Figure(int pX, int pY)
    {
        iX = pX;  iY = pY;
    }
    ...
    public override string ToString()
    {
        return iX + ":" + iY;
    }
}
public class Circle: Figure                       // 1
{
    private int iRadius;
    public Circle()
        : this(0, 0, 0)                           // 2
    {
    }
    public Circle(int pX, int pY, int pRadius)
        : base(pX, pY)                            // 2, 3
    {
        iRadius = pRadius;
    }
    ...
    public override string ToString()
    {
        return base.ToString() + ":" + iRadius;   // 3
    }
}