CP-1.008 Java Tutorial - StringBuilder

Problem: Filip (https://open.kattis.com/problems/filip) 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. You can find more info about StringBuilder here: https://download.java.net/java/early_access/jdk17/docs/api/java.base/java/lang/StringBuilder.html 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; s.append("Hello"); 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.