JuniorTheoryVery common

What does the program print (lines separated by spaces)?

var a = new Pass(7);
var b = new Pass(7);
var c = new Card();
var d = new Card();
Console.WriteLine(a == b);
Console.WriteLine(c == d);

record Pass(int Room);
class Card { public int Room = 7; }

True False

Expecting False for the records: a record is a reference type, but its == compares every property, so two Pass(7) records are equal.
Expecting True for the class objects: for a class, == compares references, and two new Card() are separate objects even with equal fields.

What does Console.WriteLine(a) print for the record a?
What would c == d print after d = c;?

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

Back to questions

JuniorTheoryVery common

What does the program print (lines separated by spaces)?

var a = new Pass(7);
var b = new Pass(7);
var c = new Card();
var d = new Card();
Console.WriteLine(a == b);
Console.WriteLine(c == d);

record Pass(int Room);
class Card { public int Room = 7; }

True False

Expecting False for the records: a record is a reference type, but its == compares every property, so two Pass(7) records are equal.
Expecting True for the class objects: for a class, == compares references, and two new Card() are separate objects even with equal fields.

What does Console.WriteLine(a) print for the record a?
What would c == d print after d = c;?

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