title: Getters returning null values when called in another class file
body: <p>My 'driver' program will not return anything except null for the values I have put into the constructors. The other values work fine, but name, major, id, and studentType do not work, and only null is returned.</p>
  
  <p>Here is the Student file:</p>
  
  <pre><code>public class Student
  {
  private String name;        //name of the student
  private String id;          //student id
  private String major;       //student's major
  private int completedHours; //number of hours the student has completed
  private int qualityPoints;  //number of overall quality points the student has earned
  private char studentType;   //type of student G (graduate) U (undergraduate) X (invalid type)
  
  public Student()
  {
  
  }//end Student()
  
  public Student(String name)
  {
      getName();
  }//end Student(String)
  
  public Student(String name, String id, String major, char studentType)
  {
      getName();
      getId();
      getMajor();
      getStudentType();
  }//end Student(String, String, String, char)
  
  public void setName(String name)
  {
      name = this.name;
  }//end setName(String)
  
  public void setId(String id)
  {
      id = this.id;
  }//end setId(String)
  
  public void setMajor(String major)
  {
      major = this.major;
  }//end setMajor(String)
  
  public void setCompletedHours(int hours)
  {
      if (hours &gt; 0)
          completedHours = hours;
  }//end setCompletedHours(int)
  
  public void setQualityPoints(int points)
  {
      if (points &gt; 0)
          qualityPoints = points;
  }//end setQualityPoints(int)
  
  public void setStudentType(char type)
  {
      if (type == 'g' || type == 'G')
          type = 'G';
      if (type == 'u' || type == 'U')
          type = 'U';
      if (type != 'u' || type != 'g')
          type = 'X';
      if (type != 'U' || type != 'G')
          type = 'X';
  
      type = studentType;
  }//end setStudentType(char)
  
  public String getName()
  {
      return name;
  }//end getName()
  
  public String getId()
  {
      return id;
  }//end getId()
  
  public String getMajor()
  {
      return major;
  }//end getMajor()
  
  public int getCompletedHours()
  {
      return completedHours;
  }//end getCompletedHours()
  
  public int getQualityPoints()
  {
      return qualityPoints;
  }//end getQualityPoints()
  
  public char getStudentType()
  {
      return studentType;
  }//end getStudentType()
  
  public double gpa()
  {
      double dGPA;
      double dPoints = qualityPoints;
      double dHours = completedHours;
  
      dGPA = dPoints/dHours;
  
      return dGPA;
  }//end gpa()
  
  public void addCompletedHours(int hours)
  {
      if (hours &gt; 0)
          completedHours += hours;
  }//end addCompletedHours(int)
  
  public void addQualityPoints(int points)
  {
      if (points &gt; 0)
          qualityPoints += points;
  }//end addQualityHours(int)
  
  public String classification()
  {
      String strClass = "";
  
      if (studentType == 'G')
          strClass += "Graduate Student, ";
      if (studentType == 'U')
          strClass += "Undergraduate, ";
      if (studentType == 'X')
          strClass += "Invalid Student Type, ";
  
      if (completedHours &gt;= 90)
          strClass = "Senior";
      if (completedHours &lt; 90)
          strClass = "Junior";
      if (completedHours &lt; 60)
          strClass = "Sophomore";
      if (completedHours &lt; 30)
          strClass = "Freshman";
  
      return strClass;
  }//end classification()
  
  public String studentRecord()
  {
      DecimalFormat df = new DecimalFormat("#,###0.000");
      String strOutput = "";
  
      strOutput += "\n           Name: " + name;
      strOutput += "\n             ID: " + id;
      strOutput += "\n          Major: " + major;
      strOutput += "\nCompleted Hours: " + completedHours;
      strOutput += "\n Quality Points: " + qualityPoints;
      strOutput += "\n            GPA: " + df.format(gpa());
      strOutput += "\n Classification: " + classification();
  
      return strOutput;
  }//end studentRecord()
  }//end Student
  </code></pre>
  
  <p>and the 'driver' file:</p>
  
  <pre><code>import java.util.Scanner;
  
  public class Proj3
  {
  public static void main(String[] args)
  {
      Scanner kb = new Scanner(System.in);
  
      Student stu1 = new Student("John Smith", "1234B", "Nursing", 'U');
      stu1.setCompletedHours(34);
      stu1.setQualityPoints(85);
  
      Student stu2 = new Student("Helen Johnson", "5678T", "Computer Science", 'U');
      stu2.setCompletedHours(64);
      stu2.setQualityPoints(210);
  
      Student stu3 = new Student("Betty Jones", "7890E", "Mathematics", 'G');
      stu3.setCompletedHours(26);
      stu3.setQualityPoints(85);
  
      System.out.println("\nJohn Smith: " + stu1.classification());
      System.out.println("\nHelen Johnson: " + stu2.classification());
      System.out.println("\nBetty Jones: " + stu3.classification());
  
      stu1.addCompletedHours(51);
      stu1.addQualityPoints(170);
  
      System.out.print("\nJohn Smith: " + stu1.studentRecord());
      System.out.print("\n\nBetty Jones: " + stu3.studentRecord());
  }
  }
  </code></pre>
  
  <p>I need to have the name, id, major, and studentType displayed when stu1.studentRecord() is called.</p>