Thread: StudentQuizzesObject

the question is indicated in the commented out part. What to do in the getQ/setQ methods

create a getQuiz() method that takes in a quiz number as input and
then returns the appropriate quiz value. Likewise, setQuiz() will take as input
a quiz number and quiz score, and then put the value into the right variable.
Given these rules, how would I be able to create these methods(below)??? I mean you cant use an array(LIST) and only certain instance variables are allowed

but how to correlate quiz number and quiz score is my question

so like:
if(num == 1)
grade = qz1;
else if(num == 2)
grade = qz2;
........................

now the problem is the get quiz method Ill show you the updated method

/**
 * Write a description of class Student here.
 * 
 * @author (Landon L.) 
 * @version (a version number or a date)
 */
public class Student
{
    // instance variables - replace the example below with your own
    private String name;
    private int qz1;
    private int qz2;
    private int qz3;
    private int qz4;
    private int qz5;
    /**
     * Constructor for objects of class Student
     */
    public Student(String name, int q1, int q2, int q3, int q4, int q5)
    {
        // initialise instance variables
        name = name;
        qz1 = q1;
        qz2 = q2;
        qz3 = q3;
        qz4 = q4;
        qz5 = q5;
    }
       //Given these  rules, how would I be able to create these methods(below)??? I mean you cant use an array and only certain instance variables
       //are allowed.
      // Student will need instance variables name , qz1, qz2, qz3, qz4, and 
     //qz5 (of types String and int, respectively). 
     // Student will need appropriate methods and constructors. To make things 
     //interesting, create a getQuiz() method that takes in a quiz number as input and 
     //then returns the appropriate quiz value. Likewise, setQuiz() will take as input 
     //a quiz number and quiz score, and then put the value into the right variable. Make 
     //sure to have a toString() method that prints the name of the student along 
     //with the quiz scores. 
    public int getQuiz(int num)
    {
 
 
    }
 
    public void setQuiz(int num, int grade )
    {
      if(num == 1)
         grade = qz1;
           else if(num == 2)
                grade = qz2;
           else if(num == 3)
                grade = qz3;
           else if(num == 4)
                grade = qz4;
           else if(num == 5)
                grade = qz5;
      else 
      {
      String msg = " This quiz doesn't exist. ";
      throw new IllegalArgumentException(msg); 
      }
    } 
 
    public void setName(String s)
    {
        name = s;
    }
 
    public String getName()
    {
        return name;
    }
 
    public String toString()
    {
        return name + "   " +  
                qz1 + "   " + qz2 + "   " +  
                qz3 + "   " + qz4 + "   " + qz5;
    }
}

So, if I am undertanding you correctly my set quiz method is correct.

int a = 3;
int b = 4;
 
b = a;

What are the values of a and b? Is the left assigned to the right? or the right to the left?

right assigned to left, but Im not sure of your point

--- Update ---

But I dont think I can without having the getQuiz method working

But this works though I dont know if when the tester program that involves insertions and deletions will, if what youre saying is a problem???
The only problem is that the getter and setter are basically the same.

/**
 * Write a description of class Student here.
 * 
 * @author (Landon L.) 
 * @version (a version number or a date)
 */
public class Student
{
    // instance variables - replace the example below with your own
    private String name;
    private int qz1;
    private int qz2;
    private int qz3;
    private int qz4;
    private int qz5;
    /**
     * Constructor for objects of class Student
     */
    public Student(String name, int q1, int q2, int q3, int q4, int q5)
    {
        // initialise instance variables
        name = name;
        qz1 = q1;
        qz2 = q2;
        qz3 = q3;
        qz4 = q4;
        qz5 = q5;
    }
       //Given these  rules, how would I be able to create these methods(below)??? I mean you cant use an array and only certain instance variables
       //are allowed.
      // Student will need instance variables name , qz1, qz2, qz3, qz4, and 
     //qz5 (of types String and int, respectively). 
     // Student will need appropriate methods and constructors. To make things 
     //interesting, create a getQuiz() method that takes in a quiz number as input and 
     //then returns the appropriate quiz value. Likewise, setQuiz() will take as input 
     //a quiz number and quiz score, and then put the value into the right variable. Make 
     //sure to have a toString() method that prints the name of the student along 
     //with the quiz scores. 
    public int getQuiz(int num)
    {
        int grade;
     if(num == 1)
         grade = qz1;
           else if(num == 2)
                grade = qz2;
           else if(num == 3)
                grade = qz3;
           else if(num == 4)
                grade = qz4;
           else if(num == 5)
                grade = qz5;
      else 
      {
      String msg = " This quiz doesn't exist. ";
      throw new IllegalArgumentException(msg); 
      }
     return grade; 
    }
 
    public void setQuiz(int num, int grade )
    {
      if(num == 1)
         grade = qz1;
           else if(num == 2)
                grade = qz2;
           else if(num == 3)
                grade = qz3;
           else if(num == 4)
                grade = qz4;
           else if(num == 5)
                grade = qz5;
      else 
      {
      String msg = " This quiz doesn't exist. ";
      throw new IllegalArgumentException(msg); 
      }
    } 
 
    public void setName(String s)
    {
        name = s;
    }
 
    public String getName()
    {
        return name;
    }
 
    public String toString()
    {
        return name + "   " +  
                qz1 + "   " + qz2 + "   " +  
                qz3 + "   " + qz4 + "   " + qz5;
    }
}

Originally Posted by llowe29

But this works though

Show the code you used to test and verify that it works.

What I had

/**
 * Write a description of class Student here.
 * 
 * @author (Landon L.) 
 * @version (a version number or a date)
 */
public class Student
{
    // instance variables - replace the example below with your own
    private String name;
    private int qz1;
    private int qz2;
    private int qz3;
    private int qz4;
    private int qz5;
    /**
     * Constructor for objects of class Student
     */
    public Student(String name, int q1, int q2, int q3, int q4, int q5)
    {
        // initialise instance variables
        name = name;
        qz1 = q1;
        qz2 = q2;
        qz3 = q3;
        qz4 = q4;
        qz5 = q5;
    }
       //Given these  rules, how would I be able to create these methods(below)??? I mean you cant use an array and only certain instance variables
       //are allowed.
      // Student will need instance variables name , qz1, qz2, qz3, qz4, and 
     //qz5 (of types String and int, respectively). 
     // Student will need appropriate methods and constructors. To make things 
     //interesting, create a getQuiz() method that takes in a quiz number as input and 
     //then returns the appropriate quiz value. Likewise, setQuiz() will take as input 
     //a quiz number and quiz score, and then put the value into the right variable. Make 
     //sure to have a toString() method that prints the name of the student along 
     //with the quiz scores. 
    public int getQuiz(int num)
    {
        int grade;
     if(num == 1)
         grade = qz1;
           else if(num == 2)
                grade = qz2;
           else if(num == 3)
                grade = qz3;
           else if(num == 4)
                grade = qz4;
           else if(num == 5)
                grade = qz5;
      else 
      {
      String msg = " This quiz doesn't exist. ";
      throw new IllegalArgumentException(msg); 
      }
     return grade; 
    }
 
    public void setQuiz(int num, int grade )
    {
      if(num == 1)
         grade = qz1;
           else if(num == 2)
                grade = qz2;
           else if(num == 3)
                grade = qz3;
           else if(num == 4)
                grade = qz4;
           else if(num == 5)
                grade = qz5;
      else 
      {
      String msg = " This quiz doesn't exist. ";
      throw new IllegalArgumentException(msg); 
      }
    } 
 
    public void setName(String s)
    {
        name = s;
    }
 
    public String getName()
    {
        return name;
    }
 
    public String toString()
    {
        return name + "   " +  
                qz1 + "   " + qz2 + "   " +  
                qz3 + "   " + qz4 + "   " + qz5;
    }
}

Tester

/**
 * Write a description of class TestStudent here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class TestStudent
{
 
    public static void main(String[] args) 
    {
 
        Student k = new Student("Emily", 90, 95, 95, 90, 92);
        //k.setQuiz(1, 90);
        int a = k.getQuiz(1);
        System.out.println(a);
    }
}

yes it does

oh i thought you meant setQuiz(1,90) again

--- Update ---

Right it doesnt work, sometimes.