Okay I am finally stuck! How in the world do you add a user defined
object to a Set and display the individual members of that object? I
am a C++ programmer at heart, so I want to overload the insertion
operator, but there aren't any streams in Java? I'm confused, please
help, thanks in advance:
[code][color=green]/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/[/color]
[color=blue]package[/color] mycollectionproject;
[color=blue]import[/color] java.util.Set;
[color=blue]import[/color] java.util.HashSet;
[color=blue]import[/color] java.util.LinkedHashSet;
[color=blue]import[/color] java.util.ArrayList;
[color=blue]import[/color] java.util.Iterator;
[color=darkgreen]/**
*
* @author Phyxashun
*/[/color]
[color=blue]public class[/color] Main
[color=darkred]{[/color]
[color=darkgreen]/**
* @param args the command line arguments
*/[/color]
[color=blue]public static void[/color] main[color=darkred]([/color]
String[color=darkred][][/color] args[color=darkred])[/color]
[color=darkred]{[/color]
String str1 = [color=blue]new[/color] String[color=darkred]([/
color][color=red]"Dusty"[/color][color=darkred])[/color];
String str2 = [color=blue]new[/color] String[color=darkred]([/
color][color=red]"Phyxashun"[/color][color=darkred])[/color];
MyOwnClass myClass1 = [color=blue]new[/color] MyOwnClass
[color=darkred]([/color][color=red]"Dusty"[/color], [color=blue]29[/
color][color=darkred])[/color];
MyOwnClass myClass2 = [color=blue]new[/color] MyOwnClass
[color=darkred]([/color][color=red]"Old Man"[/color], [color=blue]54[/
color][color=darkred])[/color];
[color=darkblue]Integer[/color] i1 = [color=blue]new[/color]
[color=darkblue]Integer[/color][color=darkred]([/color][color=blue]5[/
color][color=darkred])[/color];
[color=darkblue]Integer[/color] i2 = [color=blue]new[/color]
[color=darkblue]Integer[/color][color=darkred]([/color][color=blue]55[/
color][color=darkred])[/color];
[color=darkblue]Integer[/color] i3 = [color=blue]new[/color]
[color=darkblue]Integer[/color][color=darkred]([/color][color=blue]555
[/color][color=darkred])[/color];
Set s = [color=blue]new[/color] HashSet[color=darkred]()[/
color];
s.add[color=darkred]([/color]str1[color=darkred])[/color];
s.add[color=darkred]([/color]str2[color=darkred])[/color];
s.add[color=darkred]([/color]myClass1[color=darkred])[/color];
s.add[color=darkred]([/color]myClass2[color=darkred])[/color];
s.add[color=darkred]([/color]i1[color=darkred])[/color];
s.add[color=darkred]([/color]i2[color=darkred])[/color];
s.add[color=darkred]([/color]i3[color=darkred])[/color];
Iterator iterator = s.iterator[color=darkred]()[/color];
[color=blue]while[/color] [color=darkred]([/color]
iterator.hasNext[color=darkred]())[/color]
[color=darkred]{[/color]
Object element = iterator.next[color=darkred]()[/color];
System.out.println[color=darkred]([/color]
[color=red]"HashSet: "[/color] + element[color=darkred])[/color];
[color=darkred]}[/color]
s = [color=blue]new[/color] LinkedHashSet[color=darkred]()[/
color];
s.add[color=darkred]([/color]str1[color=darkred])[/color];
s.add[color=darkred]([/color]str2[color=darkred])[/color];
s.add[color=darkred]([/color]myClass1[color=darkred])[/color];
s.add[color=darkred]([/color]myClass2[color=darkred])[/color];
s.add[color=darkred]([/color]i1[color=darkred])[/color];
s.add[color=darkred]([/color]i2[color=darkred])[/color];
s.add[color=darkred]([/color]i3[color=darkred])[/color];
System.out.println[color=darkred]()[/color];
iterator = s.iterator[color=darkred]()[/color];
[color=blue]while[/color] [color=darkred]([/color]
iterator.hasNext[color=darkred]())[/color]
[color=darkred]{[/color]
Object element = iterator.next[color=darkred]()[/color];
System.out.println[color=darkred]([/color]
[color=red]"LinkedHashSet: "[/color] + element[color=darkred])[/
color];
[color=darkred]}[/color]
ArrayList aList = [color=blue]new[/color] ArrayList
[color=darkred]()[/color];
aList.add[color=darkred]([/color]str1[color=darkred])[/color];
aList.add[color=darkred]([/color]str2[color=darkred])[/color];
aList.add[color=darkred]([/color]myClass1[color=darkred])[/
color];
aList.add[color=darkred]([/color]myClass2[color=darkred])[/
color];
aList.add[color=darkred]([/color]i1[color=darkred])[/color];
aList.add[color=darkred]([/color]i2[color=darkred])[/color];
aList.add[color=darkred]([/color]i3[color=darkred])[/color];
System.out.println[color=darkred]()[/color];
iterator = aList.iterator[color=darkred]()[/color];
[color=blue]while[/color] [color=darkred]([/color]
iterator.hasNext[color=darkred]())[/color]
[color=darkred]{[/color]
Object element = iterator.next[color=darkred]()[/color];
System.out.println[color=darkred]([/color]
[color=red]"ArrayList: "[/color] + element[color=darkred])[/color];
[color=darkred]}[/color]
[color=darkred]}[/color]
[color=darkred]}[/color][/code]
Cheers!
Dusty
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