Java SE 8 Programmer 1Z0–808 Practice Full Test 1

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Question : 82 of 84
 
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interface Downloadable {
  public void download();
}

interface Readable extends Downloadable { // line nl
  public void readBook();
}

abstract class Book implements Readable { // line n2
  public void readBook() {
    System.out.println("Read Book");
  }
}

class EBook extends Book { // line n3
  public void readBook() {
    System.out.println("Read E-Book");
  }
}

And given the code fragment:
Book book1 = new EBook();
boook1.readBook();

What is the result?
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