Quiz 4

There were three different versions of the quiz distributed, so you'll have to find your answers in each of these.

Problem 1 (8 points)

public boolean action (Event e, Object obj)
{
  if (e.target == b1)
  {
    sw = swField.getString();
    i1 = sw.length();
    i1Field.setInt(i1);
    return true;
  }
  return true;
}

public boolean action (Event e, Object obj)
{
  if (e.target == b1)
  {
    sw = swField.getString();
    sw = sw + "#";
    swField.setString(sw);
    return true;
  }
  return true;
}

public boolean action (Event e, Object obj)
{
  if (e.target == b1)
  {
    i1 = iField.getInt();
    i1 = i1 + 10;
    i1Field.setInt(i1);
    return true;
  }
  return true;
}

Problem 2 (4 points)

People had a lot of trouble with the array/loop problem, so we reduced it's value. Be sure to review this before the midterm.

if (ddd[i]==k1) 
{
  count = count + 1;
}

if (d1[i]==k) 
{
  d1[i] = d1[i] + 1;
}

if (key==dd[i]) 
{
  keyind = i;
}

Problem 3 (8 points)

Here, some people tried to use things like StringField's and action routines. This class is not an applet, so those things shouldn't be used.

public class Book
{
  protected String author;
  protected String title;
  protected double price;

  public Book (String a1, String t1)
  {
    author = a1;
    title = t1;
  }

  public void setAuthor(String aaa)
  {
    author = aaa;
  }

  public void fixAuthor()
  {
    author = "Dr." + author;
  }

}

public class Book
{
  protected String author;
  protected String title;
  protected double price;

  public Book (String tt)
  {
    title = tt;
  }

  public void setAuthor(String aa)
  {
    author = aa;
  }

  public void fixAuthor()
  {
    author = author.substring(1,author.length());
  }

}

public class Book
{
  protected String author;
  protected String title;
  protected double price;

  public Book (String a1)
  {
    author = a1;
  }

  public void setTitle(String t1)
  {
    title = t1;
  }

  public void fixTitle()
  {
    title = title.substring(0,title.length()-1);
  }

}