public class StudentTest {
  
  public static void main(String [] args) {
    // Creating an instance
    Student s = new Student("John Doe", 25, 3.8);
    
    // Getting stuff in the class
    System.out.println("Name is: " + s.name);
    System.out.println("Age is: " + s.age);
    System.out.println("GPA is: " + s.gpa);
    
    // Changing info in the class
    s.age = 28;
    s.gpa = 3.7;
    
    System.out.println("Name is: " + s.name);
    System.out.println("Age is: " + s.age);
    System.out.println("GPA is: " + s.gpa);
  }  
}