4 Assume that c is a reference of type C that refers to an object o

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4. Assume that c is a reference of type C that refers to an

object of type E. If D is a superclass class of E, what

happens with the code below?

D d = (D) c; ?

a. runtime error

b. runs fine

Solution

The answer for your question is option a that is,runtime

error.

Reason:Code for the above question is as below:

class C{

public void C(){

System.out.println(\"This is class C\");

}

}

class D{

public void D(){

System.out.println(\"This is class D\");

}

}

class E extends D{

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4. Assume that c is a reference of type C that refers to an object of type E. If D is a superclass class of E, what happens with the code below? D d = (D) c; ? a. runtime error b. runs fine Solution The answer for your question is option a that is,runtime error. Reason:Code for the above question is as below: class C{ public void C(){ System.out.println(\"This is class C\"); } } class D{ public void D(){ System.out.println(\"This is class D\"); } } class E extends D{ public void E(){ System.out.println(\"This is class E\"); } } public class HelloWorld{ public static void main(String []args ...
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