Given:
java
int post = 5;
int pre = 5;
int postResult = post++ + 10;
int preResult = ++pre + 10;
System.out.println("postResult: " + postResult +
", preResult: " + preResult +
", Final value of post: " + post +
", Final value of pre: " + pre);
What is printed?

• A. postResult: 15, preResult: 16, Final value of post: 5, Final value of pre: 6
• B. postResult: 15, preResult: 16, Final value of post: 6, Final value of pre: 6
• C. postResult: 16, preResult: 15, Final value of post: 6, Final value of pre: 5
• D. postResult: 16, preResult: 16, Final value of post: 6, Final value of pre: 6

Given:
java
CopyOnWriteArrayList<String> list = new CopyOnWriteArrayList<>();
list.add("A");
list.add("B");
list.add("C");
// Writing in one thread
new Thread(() -> {
list.add("D");
System.out.println("Element added: D");
}).start();
// Reading in another thread
new Thread(() -> {
for (String element : list) {
System.out.println("Read element: " + element);
}
}).start();
What is printed?

• A. It prints all elements, but changes made during iteration may not be visible.
• B. It prints all elements, including changes made during iteration.
• C. It throws an exception.
• D. Compilation fails.

Given:
java
package vehicule.parent;
public class Car {
protected String brand = "Peugeot";
}
and
java
package vehicule.child;
import vehicule.parent.Car;
public class MiniVan extends Car {
public static void main(String[] args) {
Car car = new Car();
car.brand = "Peugeot 807";
System.out.println(car.brand);
}
}
What is printed?

• A. An exception is thrown at runtime.
• B. Peugeot
• C. Peugeot 807
• D. Compilation fails.

Which of the following java.io.Console methods doesnotexist?

• A. readPassword()
• B. readLine(String fmt, Object... args)
• C. readLine()
• D. reader()
• E. read()
• F. readPassword(String fmt, Object... args)

Given:
java
var sList = new CopyOnWriteArrayList<Customer>();
Which of the following statements is correct?

• A. The CopyOnWriteArrayList class is a thread-safe variant of ArrayList where all mutative operations are implemented by making a fresh copy of the underlying array.
• B. The CopyOnWriteArrayList class's iterator reflects all additions, removals, or changes to the list since the iterator was created.
• C. Element-changing operations on iterators of CopyOnWriteArrayList, such as remove, set, and add, are supported and do not throw UnsupportedOperationException.
• D. The CopyOnWriteArrayList class does not allow null elements.
• E. The CopyOnWriteArrayList class is not thread-safe and does not prevent interference amongconcurrent threads.