Defining the Method that just prints out a string, Why is there no return neccessary?

Question

class MyClass {
Static void sayHappyNewYear () {
System.out.println ("Happy New Year World!");
}

public Static void Main (String [ ] args) {
sayHappyNewYear ();
}
}

In the example where we add two Numbers there was a return value, right?. Is this different here in the Code above, because we use a method that already exists?

Answer 1

public class Program
{
static void addnumber(int x,int y){
System.out.println("sum is: " + (x+y));
}
public static void main(String[] args) {
addnumber(5,3);
}
}
you see , i didnt use return here and it works...you are probablly asking why
in my program i called function addnumber and send 2 numbers. in that same function output was called and we printed sum of 5 and 3

let se this program :

public class Program
{
static int addnumber(int x,int y){
return (x+y);
}
public static void main(String[] args) {
System.out.println("sum is" + addnumber(5,3));
}
}
in our main we first said :ok let's print and then called function where we send the numbers and execute sum 5+3 and then return that sum back to our main function