Question

public void func (Tree root)
{
func (root.left ();
func (root.right ());
System.out.println (root. data ());
}​

Answer 1

Answer:

error

Explanation:

you should close the parameter for left function

Answer 2

This code represents a recursive method that traverses a binary tree in postorder traversal. It takes the root of the tree as a parameter and calls the same method recursively on the left and right children of the root node until it reaches the leaves of the tree. Then, it prints out the data of the root node.

The postorder traversal visits the left subtree, then the right subtree, and finally the root node. Therefore, the nodes are processed in the order of their dependencies, which is useful in certain situations.

Note that there is a syntax error in the code due to an extra parenthesis after "root.left", which should be removed:

public void func(Tree root) {

func(root.left());

func(root.right());

System.out.println(root.data());

}

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