How to get the first letter from a variable?

Question

Java

There is a variable of type String. How to find out what is the first letter in it?
For example, there is a variable s with the value "Hi". You need to find out the first letter (in this case it will be "P"). How to do it?

Answer 1

Use String.charAt() .

Answer 2

char firstLetter = s.charAt(0);