String Methods
Java also has a variety of methods you can use on Strings to manipulate them: https://www.w3schools.com/java/java_ref_string.asp
You should be familiar with the following methods:
- charAt()
- compareTo()
- compareToIgnoreCase()
- contains()
- equals()
- equalsIgnoreCase()
- indexOf()
- isEmpty()
- lastIndexOf()
- length()
- replace()
- split()
- substring()
- toCharArray()
- toLowerCase()