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Q: What is the output for the below code?
public class A {
public A() {
System.out.println("A");
}
}
public class Test {
public static void main(String... args) throws Exception {
A a = new A();
ObjectOutputStream save = new ObjectOutputStream(new
FileOutputStream("datafile"));
save.writeObject(a);
save.flush();
ObjectInputStream restore = new ObjectInputStream(new
FileInputStream("datafile"));
A z = (A) restore.readObject();
}
}
A. A A B. A
C. java.io.NotSerializableException D. None of the above

Answer and Explanation

Answer:java.io.NotSerializableException

Explanation:
Class A does not implements Serializable interface. So throws NotSerializableException
on trying to Serialize a non Serializable object.

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