Java OOPs Concepts Test 5

Which is true about objects in Java?

What will be printed?

class A {
    A() { System.out.println("A"); }
}
class B extends A {
    B() { System.out.println("B"); }
}
public class Main {
    public static void main(String[] args) {
        B obj = new B();
    }
}

Which statement is true?

Which is true?

Which is correct?

Which of the following is not a benefit of encapsulation?

Which of the following is correct?

How can you access `Test` class without importing package?

Which of the following is true?

Which statement is correct about clone() method?

What does the this keyword represent in Java?

class Test {
    int x;
    Test(int x) { this.x = x; }
}

Will this code compile?

class Test {
    Test(int x) {}
}
public class Main {
    public static void main(String[] args) {
        Test t = new Test();
    }
}

Which is true about abstract class inheritance?

Which is correct regarding interface polymorphism?

What is the main purpose of abstraction in Java?

Which statement about encapsulation is correct?

What is the main purpose of interfaces in Java?

Which of the following is not a benefit of packages?

What is the main purpose of final keyword in Java?

Which of the following rules is true for overriding?