Okay, I have been programming a C++ for a while, so I am little
befuddled trying to figure this one out. After assigning an instance
of a class to a container, how to you display all of the instance
variables. All I can figure out is how to display the reference, which
is what happens when you assign an object instance to a container. Any
help would be much appreciated; here's the code:
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package mycollectionproject;
import java.util.Set;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.ArrayList;
import java.util.Iterator;
import javax.swing.JOptionPane;
/**
*
* @author Phyxashun
*/
public class Main
{
/**
* @param args the command line arguments
*/
@SuppressWarnings("unchecked")
public static void main(String[] args)
{
Set s = new HashSet();
String msg = new String();
s.add(new String ("Dusty"));
s.add(new String ("Phyxashun"));
s.add(new MyOwnClass("Dusty", 29));
s.add(new MyOwnClass("Old Man", 54));
s.add(new Integer (5));
s.add(new Integer (55));
s.add(new Integer (555));
for (Iterator iterator = s.iterator(); iterator.hasNext(); )
{
msg += "HashSet: " + iterator.next() + "\n";
}
JOptionPane.showMessageDialog(null, msg, "HashSet", 1);
s = new LinkedHashSet(s);
msg = new String();
for (Iterator iterator = s.iterator(); iterator.hasNext(); )
{
msg += "LinkedHashSet: " + iterator.next() + "\n";
}
JOptionPane.showMessageDialog(null, msg, "LinkedHashSet", 1);
ArrayList aList = new ArrayList(s);
msg = new String();
for (Iterator iterator = aList.iterator(); iterator.hasNext
(); )
{
msg += "ArrayList: " + iterator.next() + "\n";
}
JOptionPane.showMessageDialog(null, msg, "ArrayList", 1);
}
}
Cheers!
Dusty
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