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Given:
1. class A {
2. public void process() { System.out.print("A,"); }}
3. class B extends A {
4. public void process() throws IOException {
5. super.process();
6. System.out.print("B,");
7. throw new IOException();
8.}
9. public static void main(String[] args) {
10. try { new B().process(); }
11. catch (IOException e) { System.out.println("Exception"); }}}

What is the result?

A.	Exception	B.	A,B,Exception
C.	Compilation fails because of an error in line 10.	D.	Compilation fails because of an error in line 4.
E.	A NullPointerException is thrown at runtime.

Answer and Explanation

Answer:Compilation fails because of an error in line 4.

Explanation:
process( ) in super class A is not throwing any exception. When we override in child class it should not throw any exception. If in child class overridden method throws an exception then it fails during compilation time.
So D) is correct.

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