Exceptions and Overriding : overridden method « Object Oriented « SCJP

1. SCJP
2. Object Oriented
3. overridden method

Java compiler insists that all exceptions thrown by the new method must be 
the same as, or subclasses of, the exception classes thrown by the original method. 

import java.io.EOFException;
import java.io.IOException;
import java.net.MalformedURLException;

class BaseClass {
  public void method() throws IOException {
  }
}

class SubOne extends BaseClass {
  public void method() throws IOException {
  }
}

 class SubTwo extends BaseClass {
  public void method() {
  }
}

 class SubThree extends BaseClass {
  public void method() throws EOFException, MalformedURLException {
  }
}