Hello

I have simple class Student like this:

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class Student{
    String studentName;
    int studentID;
    String studentAddress;

   public Student (String studentName, int studentID, String
studentAddress){
         this.studentID = studentID;
         this.studentAddress = studentAddress;
         this.studentName = studentName;
    }

   public String getStudentName(){
         return this.studentName;
   }
}
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Now I create a student object:

    Student aStudent = new Student ("John", 122121, "USA");

I want to have the name of this student Object, so I have two methods:

    //first method
   String studentName= aStudent.studentName;
   //another method
   String studentName = aStudent.getStudentName();

In a simple application like this, two results as the same. I know that the
first method is not correct. Could you please tell me the differences
between two methods and why I should choose method 2.

Many thanks
S.Hoa