In this program , why there is need to write Void before bark() method

Question

public class Animal {
void bark() {
 System.out.println("Woof-Woof");
} }

Answer 1

Java course special for [2]
https://www.sololearn.com/Course/Java/?ref=app

Answer 2

If a function don't need to "return" something you should use "void"