Telegram Group & Telegram Channel
Что выведет следующий код на C#?


using System;

class Program {
static void Main() {
int a = 1000;
int b = 1000;

object x = a;
object y = b;

Console.WriteLine(x == y); // #1
Console.WriteLine(x.Equals(y)); // #2
}
}


🔢 Варианты ответа:

A)

True


B)

False


C)

True


D)

False


Правильный ответ: C

💡 Почему?

-
x и y — boxed значения типа int, то есть ссылки на два разных объекта в куче.
-
x == y сравнивает ссылки, а не значения → False.
-
x.Equals(y) вызывает метод Equals для int, который сравнивает значения → True.

📌 Подвох — в различии
== и .Equals() при использовании упакованных типов.

@csharp_ci



tg-me.com/csharp_ci/1336
Create:
Last Update:

Что выведет следующий код на C#?


using System;

class Program {
static void Main() {
int a = 1000;
int b = 1000;

object x = a;
object y = b;

Console.WriteLine(x == y); // #1
Console.WriteLine(x.Equals(y)); // #2
}
}


🔢 Варианты ответа:

A)

True


B)

False


C)

True


D)

False


Правильный ответ: C

💡 Почему?

-
x и y — boxed значения типа int, то есть ссылки на два разных объекта в куче.
-
x == y сравнивает ссылки, а не значения → False.
-
x.Equals(y) вызывает метод Equals для int, который сравнивает значения → True.

📌 Подвох — в различии
== и .Equals() при использовании упакованных типов.

@csharp_ci

BY C# (C Sharp) programming


Warning: Undefined variable $i in /var/www/tg-me/post.php on line 283

Share with your friend now:
tg-me.com/csharp_ci/1336

View MORE
Open in Telegram


C C Sharp programming Telegram | DID YOU KNOW?

Date: |

The SSE was the first modern stock exchange to open in China, with trading commencing in 1990. It has now grown to become the largest stock exchange in Asia and the third-largest in the world by market capitalization, which stood at RMB 50.6 trillion (US$7.8 trillion) as of September 2021. Stocks (both A-shares and B-shares), bonds, funds, and derivatives are traded on the exchange. The SEE has two trading boards, the Main Board and the Science and Technology Innovation Board, the latter more commonly known as the STAR Market. The Main Board mainly hosts large, well-established Chinese companies and lists both A-shares and B-shares.

Start with a fresh view of investing strategy. The combination of risks and fads this quarter looks to be topping. That means the future is ready to move in.Likely, there will not be a wholesale shift. Company actions will aim to benefit from economic growth, inflationary pressures and a return of market-determined interest rates. In turn, all of that should drive the stock market and investment returns higher.

C C Sharp programming from ru


Telegram C# (C Sharp) programming
FROM USA