CP-1.008 Java Tutorial - StringBuilder

Java String is immutable so when you need to do a lot of String manipulation, it's more efficient to use the StringBuilder class instead. You can also do more like reversing the string, which I demonstrated in this video.

By the way, in the video I used the constructor to build a StringBuilder, e.g.

StringBuilder s = new StringBuilder("Hello");

but you can also do

StringBuilder s;

which may be faster to write.

Video Sections:
0:00 - Java String objects are immutable
3:36 - StringBuilder class
8:50 - Solution to the problem

Please note that all views and opinions expressed in this video are my own and does not reflect that of Kattis or any other person/organisation mentioned in the video.