Planets                                        P.Komisar
  

class Planets3{
  public static void main(String[] args){
    String s1= "Mercury";
    String s2="Venus";
    String s3="Earth";

    System.out.println("The planets of the solar system are \n" +
    s1 + ", " + s2 + " and " + s3  + ".");
   }
}
// The + signs can be used for addtion but also to concatenate strings together.
// the \n is an example of what is called an escape sequence and is used here to
// cause the output to be placed on a new line.
     
Excercise        
 
First you should run this class. Then, having noticed the programmer didn't finish the job,
complete the program by adding the missing planets. Rename the class appropriately.