Browse DevX
Sign up for e-mail newsletters from DevX


Tip: Loop the Characters of a String

See how to use charAt() or toCharArray() to loop the characters of a string.


Looping the characters of a string can be done via charAt() or toCharArray() as follows:

String str = "hello world";

for (int i = 0; i<str.length(); i++) {
char ch = str.charAt(i);

Or, via toCharArray():

for(char ch: str.toCharArray()) {


Visit the DevX Tip Bank


Octavia Andreea Anghel is a senior PHP developer currently working as a primary trainer for programming teams that participate at national and international software-development contests. She consults on developing educational projects at a national level. She is a coauthor of the book "XML Technologies--XML in Java" (Albastra, ISBN 978-973-650-210-1), for which she wrote the XML portions. In addition to PHP and XML, she's interested in software architecture, web services, UML, and high-performance unit tests.
Thanks for your registration, follow us on our social networks to keep up-to-date