Telegram Group & Telegram Channel
🕕 Задача по Java: Что будет выведено?


public class Main {
public static void main(String[] args) {
Integer a = 127;
Integer b = 127;
Integer c = 128;
Integer d = 128;

System.out.println(a == b); // ?
System.out.println(c == d); // ?
}
}


Варианты:
A) true, true
B) true, false
C) false, true
D) false, false

Правильный ответ: B

Объяснение:
Java кэширует объекты Integer в диапазоне -128 ... 127.
a == b — то же значение и тот же объект.
c == d — разные объекты вне кэша. Используй .equals() для сравнения!



tg-me.com/java_quizes/217
Create:
Last Update:

🕕 Задача по Java: Что будет выведено?


public class Main {
public static void main(String[] args) {
Integer a = 127;
Integer b = 127;
Integer c = 128;
Integer d = 128;

System.out.println(a == b); // ?
System.out.println(c == d); // ?
}
}


Варианты:
A) true, true
B) true, false
C) false, true
D) false, false

Правильный ответ: B

Объяснение:
Java кэширует объекты Integer в диапазоне -128 ... 127.
a == b — то же значение и тот же объект.
c == d — разные объекты вне кэша. Используй .equals() для сравнения!

BY Java tests


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

Share with your friend now:
tg-me.com/java_quizes/217

View MORE
Open in Telegram


telegram Telegram | DID YOU KNOW?

Date: |

Telegram today rolling out an update which brings with it several new features.The update also adds interactive emoji. When you send one of the select animated emoji in chat, you can now tap on it to initiate a full screen animation. The update also adds interactive emoji. When you send one of the select animated emoji in chat, you can now tap on it to initiate a full screen animation. This is then visible to you or anyone else who's also present in chat at the moment. The animations are also accompanied by vibrations. This is then visible to you or anyone else who's also present in chat at the moment. The animations are also accompanied by vibrations.

Telegram is riding high, adding tens of million of users this year. Now the bill is coming due.Telegram is one of the few significant social-media challengers to Facebook Inc., FB -1.90% on a trajectory toward one billion users active each month by the end of 2022, up from roughly 550 million today.

telegram from pl


Telegram Java tests
FROM USA