JAVA Difference of String and Charsequence?

Question

what is the differences of String and Charsequence?

Answer 1

CharSequence is an Interface.
https://docs.oracle.com/javase/9/docs/api/java/lang/CharSequence.html

As you can see String (also StringBuilder and StringBuffer) implements this Interface.

Interface: https://www.sololearn.com/learn/Java/2167/?ref=app

Answer 2

What

Answer 3

Complete >>>" "