Java tilida Sealed deb e'lon qilingan sinfdan meros olish mumkinmi?

Java tilida, sealed sifatida e'lon qilingan sinf, undan meros olish mumkin bo'lgan sinflar doirasini cheklaydi. Sealed sinfdan meros olish mumkin, lekin faqat agar kichik sinfa rasmiy ravishda permits ro'yxatida ko'rsatilgan bo'lsa, ya'ni sealed sinf e'lonida.

Misol:

public sealed class Shape permits Circle, Rectangle {
    //...
}

public final class Circle extends Shape {
    //...
}

public final class Rectangle extends Shape {
    //...
}

Agar permits ro'yxatida ko'rsatilmagan sinfni yaratishga harakat qilsangiz, kompilyator xato beradi. Shunday qilib, sealed sinfdan meros olish mumkin, lekin qat'iy nazorat ostida.