We help IT Professionals succeed at work.
Get Started

How does this pseudocode for Tree traversals work?

shampouya
shampouya asked
on
399 Views
Last Modified: 2012-05-12
My algorithms textbook has a pseudocode implementation of how to list the names of all the files in a tree directory. Let's say you have this tree directory right here. Does the pseudocode below know to print the names of the three files in the first child folder and then print the three items in the second folder, or does the code have to be called once for each path?

ParentFolder
ChildFolder1  -  ChildFolder2
file1,file2,file3  -  file4,file5,file6
private void listAll( int depth )
{
	printName( depth ); // Print the name of the object
		if( isDirectory( ) )
 			for each file c in this directory (for each child)
				c.listAll( depth + 1 );


public void listAll( )
{
	listAll( 0 );
}

Open in new window

Comment
Watch Question
CERTIFIED EXPERT
Commented:
This problem has been solved!
Unlock 1 Answer and 8 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE