Someone let me know where im going wrong. I need basic examples please :) .

Heres my code.

public class Grades
{
String ssn;
String name;
String grade;

Grades(String s, String n, String g)
{
ssn = s;
name = n;
grade = g;
}
}

class Student{
public static void main(String args[])
{
Grades John = new Grades(351-63-2182, John, A);
Grades Kris = new Grades(432-35-2562, Kris, B);

System.out.println(John + " " + Kris);
}
}

When i attempt to compile this code i get an error. Any help possible would be much appreciated.

Thanks!