/** Encapsulate information relating to a single student.
** @author: Jonathan Doughty
**/
public class Student3c {
public static void main(String args[]) {
Student3.tryIt();
Student3c.waitForUser(); // only needed for Windows/Javaedit
}
public static void tryIt() {
Student3c aStudent = new Student3c( "Jonathan Doughty",
"123-45-6789" );
aStudent.setGrade( 100 );
// When the preceding lines are executed, a Student3c object is
// created and its two fields are set.
// Does the following do something different? What does the
// result look like now?
System.out.println(aStudent);
}
// Instance variables (fields) that will be associated with
// each student
private String GMU_Id;
private String name;
private int homeworkGrade;
// Constructors for the class
private Student3c() { // why do you think this is?
}
public Student3c( String name, String id) {
this.name = name;
GMU_Id = id;
}
// An accessor method to set the Student's name field; not
// needed any more but left in because a student's name could
// change.
public void setName( String studentName ) {
name = studentName;
}
// An accessor method to set the Student's GMU_Id field (probably
// no longer necessary)
public void setId( String id ) {
GMU_Id = id;
}
// An accessor method to set the Student's homeworkGrade field
public void setGrade( int grade ) {
homeworkGrade = grade;
}
// Using the toString method to enable an instance of an
// object to identify itself usefully.
public String toString() {
String result = name + ":" + GMU_Id + " grade:" + homeworkGrade;
return result;
}
// The following is only needed for running the program from
// within the Javaedit application on Windows
public static void waitForUser() {
try {
byte[] line = new byte[80];
System.out.println("press enter key to end");
System.in.read(line);
}
catch (java.io.IOException e) {
// ignored
}
}
}
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