Given:

class C2 {
public void displayC2() {
System.out.println("C2");
}
}

interface I {
public void display();
}

class C1 extends C2 implements I {
public void display() {
System.out.println("C1");
}
}

And given the code fragment:

C2 obj1 = new C1();
I obj2 = new C1();

C2 s = obj1;
I t = obj2;

s.display();
t.displayC2();

What is the result?

Question

Given:

class C2 {
 public void displayC2() {
 System.out.println("C2");
 }
}

interface I {
 public void display();
}

class C1 extends C2 implements I {
 public void display() {
 System.out.println("C1");
 }
}

And given the code fragment:

C2 obj1 = new C1();
I obj2 = new C1();

C2 s = obj1;
I t = obj2;

s.display();
t.displayC2();

What is the result?

Accepted Answer

D. Compilation fails.

Answer

A. C2C2

Answer

B. C1C2

Answer

C. C1C1

Given: class C2 { public void displayC2() { System.out.println("C2"); } } interface I { public void display(); } class C1 extends C2 implements I { public void display() { System.out.println("C1")…