public class ListMystery { public static void main(String[] args) { List<String> items = Arrays.asList("Java", "Kotlin", "Scala"); items.set(1, "Groovy"); items.add("Clojure"); // строка №5 System.out.println(items); } }
Варианты ответа:
1️⃣ Компилируется, выводит [Java, Groovy, Scala, Clojure] 2️⃣ Ошибка компиляции 3️⃣ Исключение времени выполнения 4️⃣ Выведет [Java, Groovy, Scala] — метод add проигнорирован
💡Подсказка: Метод Arrays.asList() не создаёт обычный ArrayList, а возвращает фиксированную обёртку над массивом. Размер менять нельзя.
✅ Ответ: 3 На строке `items.add("Clojure")` выбрасывается `UnsupportedOperationException`. Чтобы избежать этой ловушки, создавай изменяемый список явно:
List<String> items = new ArrayList<>(Arrays.asList("Java", "Kotlin", "Scala"));
public class ListMystery { public static void main(String[] args) { List<String> items = Arrays.asList("Java", "Kotlin", "Scala"); items.set(1, "Groovy"); items.add("Clojure"); // строка №5 System.out.println(items); } }
Варианты ответа:
1️⃣ Компилируется, выводит [Java, Groovy, Scala, Clojure] 2️⃣ Ошибка компиляции 3️⃣ Исключение времени выполнения 4️⃣ Выведет [Java, Groovy, Scala] — метод add проигнорирован
💡Подсказка: Метод Arrays.asList() не создаёт обычный ArrayList, а возвращает фиксированную обёртку над массивом. Размер менять нельзя.
✅ Ответ: 3 На строке `items.add("Clojure")` выбрасывается `UnsupportedOperationException`. Чтобы избежать этой ловушки, создавай изменяемый список явно:
List<String> items = new ArrayList<>(Arrays.asList("Java", "Kotlin", "Scala"));
Spiking bond yields driving sharp losses in tech stocks
A spike in interest rates since the start of the year has accelerated a rotation out of high-growth technology stocks and into value stocks poised to benefit from a reopening of the economy. The Nasdaq has fallen more than 10% over the past month as the Dow has soared to record highs, with a spike in the 10-year US Treasury yield acting as the main catalyst. It recently surged to a cycle high of more than 1.60% after starting the year below 1%. But according to Jim Paulsen, the Leuthold Group's chief investment strategist, rising interest rates do not represent a long-term threat to the stock market. Paulsen expects the 10-year yield to cross 2% by the end of the year.
A spike in interest rates and its impact on the stock market depends on the economic backdrop, according to Paulsen. Rising interest rates amid a strengthening economy "may prove no challenge at all for stocks," Paulsen said.
Telegram Auto-Delete Messages in Any Chat
Some messages aren’t supposed to last forever. There are some Telegram groups and conversations where it’s best if messages are automatically deleted in a day or a week. Here’s how to auto-delete messages in any Telegram chat. You can enable the auto-delete feature on a per-chat basis. It works for both one-on-one conversations and group chats. Previously, you needed to use the Secret Chat feature to automatically delete messages after a set time. At the time of writing, you can choose to automatically delete messages after a day or a week. Telegram starts the timer once they are sent, not after they are read. This won’t affect the messages that were sent before enabling the feature.
