Binary Tree Traversal Practice Quiz

Practice Problem

• Take out a piece of paper and put your name on the upper right corner.

• Write an in-order toString() method for a Binary Tree.

public class BinaryTree<E> {
  private BinaryNode<E> root;

  public String toString() {
   // your code
  }

  private class BinaryNode<E> {
    private E data;
    private BinaryNode<E> left;
    private BinaryNode<E> right;
  }
}

• You can use a helper method.
• Be sure to write JavaDoc comments for your code.
• After the code, write an explanation the Big-O performance of the binarySearch method.

Time Remaining:

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Try to complete the problem in 15 minutes.

If you cannot complete the program in 15 minutes, you can watch me solve the problem in a text editor.