public class Main{

  public static void main(String[] args){

  }
}

public class Main{

  public static void main(String[] args){
    new Student();
  }
}

public class Main{

  public static void main(String[] args){
    Student jane = new Student();
  }
}

public class Main{

  public static void main(String[] args){
    Student jane = new Student();
    System.out.println(jane.name);
  }
}

public class Main{

  public static void main(String[] args){
    Student jane = new Student();
    System.out.println(jane.name);
    jane.name = "Jane";
  }
}

public class Main{

  public static void main(String[] args){
    Student jane = new Student();
    System.out.println(jane.name);
    jane.name = "Jane";
    jane.age = jane.age + 15;
    jane.student_id = "123" + "456";
    jane.credits = 45
    jane.gpa = jane.gpa - 1.1;

    System.out.println(jane.name + ": " +
                          jane.student_id);
  }
}

public class Main{

  public static void main(String[] args){
    Student jane = new Student();
    System.out.println(jane.name);
    jane.name = "Jane";
    jane.age = jane.age + 15;
    jane.student_id = "123" + "456";
    jane.credits = 45
    jane.gpa = jane.gpa - 1.1;

    System.out.println(jane.name + ": " +
                          jane.student_id);

    jane.birthday();
    jane.grade(4, 12);
  }
}