JuniorTheoryCommon

What does the program print?

var a = new House();
var b = new House();
var c = new House();
Console.WriteLine(House.Count + " " + a.Number);

class House
{
    public static int Count { get; private set; }
    public int Number { get; private set; }

    public House() => Number = ++Count;
}

3 1

Expecting 1 1: a static property is one for the whole class, so every constructor call raises the same Count.
Expecting a.Number to follow Count: the assignment copies the value at that moment, so the first house keeps 1.

What would the program print if Count were not static?
Why does a.Count not compile while House.Count does?

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JuniorTheoryCommon

What does the program print?

var a = new House();
var b = new House();
var c = new House();
Console.WriteLine(House.Count + " " + a.Number);

class House
{
    public static int Count { get; private set; }
    public int Number { get; private set; }

    public House() => Number = ++Count;
}

3 1

Expecting 1 1: a static property is one for the whole class, so every constructor call raises the same Count.
Expecting a.Number to follow Count: the assignment copies the value at that moment, so the first house keeps 1.

What would the program print if Count were not static?
Why does a.Count not compile while House.Count does?

Back to questions Open topic in roadmap →Answer it yourself — Quiz