Value as a string from a void function

if i use the @neilcsmith example the problem still exists as i said
i fix the code like this:

void displayinformation(){
  if (selection.equals("1")) {
    Information("John", 30);
  }
  if (selection.equals("2")) {
    Information("Melanie", 40,);
  } 
}

String information (String name, int age) {
  textSize(60);
  fill(0); 
  text("Name:"+name, 800,500);
  fill(0);
  text("Age:"+age, 850, 600);
  return "Name: " + name + "\nAge: " + age;
}
}