ANSWERS FOR PRACTICE FINAL -- SPRING 2003

1. 
     x[0] x[1] x[2] x[3] x[4] x[5] x[6] x[7] x[8]   a    b    c    y 
    +----+----+----+----+----+----+----+----+----+----+----+----+----+
    | 12 | 19 | 34 | 41 | 57 | 65 | 79 | 91 | 99 |  0 |  8 |  4 | 79 |
    |    |    |    |    |    |    |    |    |    |  4 |  8 |  6 |    |
    
    Output:
    Index is 6

2. (a)  +-------------------------------------------------+
        |  Patient                                        |
        +-------------------------------------------------+
        | - name                                          |
        | - age                                           |
        | - diagnosis                                     |
        | - doctor                                        |
        +-------------------------------------------------+
        | + Patient(n:String, a:int, d:String, doc:String)|
        | + getName() : String                            |
        | + getAge() : int                                |
        | + getDiagnosis() : String                       |
        | + getDoctor() : String                          |
        | + toString() : String                           |
        +-------------------------------------------------+

// Part (b) 
public class Patient
{
    private String name;
    private int age;
    private String diagnosis;
    private String doctor;

    public Patient(String n, int a, String d, String doc)
    {
        name = n;
        age = a;
        diagnosis = d;
        doctor = doc;
    }

    public String getName()
    {
        return name;
    }

    public int getAge()
    {
        return age;
    }

    public String getDiagnosis()
    {
        return diagnosis;
    }

    public String getDoctor()
    {
        return doctor;
    }

    public String toString()
    {
        return name + " " + age + " " + diagnosis + " " + doctor;
    }
}

// Part (c)
public static void main(String[] args)
{
    Patient p;
    p = new Patient("Bates,Jim", 35, "Fractured tibia", "Morgan,Dawn");
    System.out.println(p);
    System.out.println(p.getName());
    System.out.println(p.getAge());
    System.out.println(p.getDiagnosis());
    System.out.println(p.getDoctor());
}

// Part (d).  The output is:
    Bates, Jim
    35
    Fractured tibia
    Morgan, Dawn
    Bates, Jim 35 Fractured tibia Morgan, Dawn
    

3.  int count = 0;
    for(int i = 0; i < k.length; i++)
        if(k[i].getName().equals("Emily"))
            count++;
    System.out.println("Count = " + count);

4.  public static boolean isVowel(char x)
    {
        return x=='A' || x=='E' || x=='I' || x=='O' || x=='U' || 
               x=='a' || x=='e' || x=='i' || x=='o' || x=='u';
    }  
 
    public static String removeVowels(String s)
    {
        String t = "";
        for(int i; i < s.length(); i++)
            if(!isVowel(s.charAt(i)))
                t += s.charAt(i);
        return t;
    }

5.  public class RemoveVowels extends Applet implements ActionListener
    {
        private TextField input, output;
        private Button remove;

        public void init()
        {
            input = new TextField(12);
            output = new TextField(12);
            remove = new Button("Remove Vowels");

            add(input);
            add(output);
            add(remove);

            button.addActionListener(this);
        }

        public void actionPerformed(ActionEvent e)
        {
            String s, t;

            s = input.getText();
            t = removeVowels(s);
            output.setText(t);
        }
    }