Exercises

Bruce Eckel's Thinking in Java Contents | Prev | Next

  1. Create two classes, A and B, with default constructors (empty argument lists) that announce themselves. Inherit a new class called C from A, and create a member B inside C. Do not create a constructor for C. Create an object of class C and observe the results.
  2. Modify Exercise 1 so that A and B have constructors with arguments instead of default constructors. Write a constructor for C and perform all initialization within C’s constructor.
  3. Take the file Cartoon.java and comment out the constructor for the Cartoon class. Explain what happens.
  4. Take the file Chess.java and comment out the constructor for the Chess class. Explain what happens.
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