Länkad lista?

Hur skapar man en länkad lista med hjälp av två klasser?

Menar du nåt i stil med detta:

package list;

import java.util.*;

public class CountryList {

private LinkedHashMap hm;

	public CountryList() {

		hm = new LinkedHashMap();
			hm.put("", "Select your Country");
			hm.put("af", "Afghanistan");
			hm.put("al", "Albania");
			hm.put("dz", "Algeria");
			hm.put("as", "American Samoa");
			hm.put("ad", "Andorra");
			hm.put("ao", "Angola");
			hm.put("ai", "Anguilla");
			hm.put("aq", "Antarctica");
			hm.put("ag", "Antigua and Barbuda");
			hm.put("ar", "Argentina");
			hm.put("am", "Armenia");
			hm.put("aw", "Aruba");
			hm.put("au", "Australia");
			hm.put("at", "Austria");
			hm.put("az", "Azerbaidjan");
			hm.put("bs", "Bahamas");
			hm.put("bh", "Bahrain");
			hm.put("Ba", "Bangladesh");
			hm.put("bb", "Barbados");
			hm.put("by", "Belarus");
			hm.put("be", "Belgium");
			hm.put("bz", "Belize");
			hm.put("bj", "Benin");
			hm.put("bm", "Bermuda");
			hm.put("bt", "Bhutan");
			hm.put("bo", "Bolivia");
			hm.put("ba", "Bosnia-Herzegovina");
			hm.put("bw", "Botswana");
			hm.put("bv", "Bouvet Island");
			hm.put("br", "Brazil");
			hm.put("io", "British Indian Ocean Territory");
			hm.put("bn", "Brunei Darussalam");
			hm.put("bg", "Bulgaria");
			hm.put("bf", "Burkina Faso");
			hm.put("bi", "Burundi");
			hm.put("kh", "Cambodia, Kingdom of");
			hm.put("cm", "Cameroon");
			hm.put("ca", "Canada");
			hm.put("cv", "Cape Verde");
			hm.put("ky", "Cayman Islands");
			hm.put("cf", "Central African Republic");
			hm.put("td", "Chad");
			hm.put("cl", "Chile");
			hm.put("cn", "China");
			hm.put("cx", "Christmas Island");
			hm.put("cc", "Cocos (Keeling) Islands");
			hm.put("co", "Colombia");
			hm.put("km", "Comoros");
			hm.put("cg", "Congo");
			hm.put("cd", "Congo, The Democratic Republic of the");
			hm.put("ck", "Cook Islands");
			hm.put("cr", "Costa Rica");
			hm.put("hr", "Croatia");
			hm.put("cu", "Cuba");
			hm.put("cy", "Cyprus");
			hm.put("cz", "Czech Republic");
			hm.put("dk", "Denmark");
			hm.put("dj", "Djibouti");
			hm.put("dm", "Dominica");
			hm.put("do", "Dominican Republic");
			hm.put("tp", "East Timor");
			hm.put("ec", "Ecuador");
			hm.put("eg", "Egypt");
			hm.put("sv", "El Salvador");
			hm.put("gq", "Equatorial Guinea");
			hm.put("er", "Eritrea");
			hm.put("ee", "Estonia");
			hm.put("et", "Ethiopia");
			hm.put("fk", "Falkland Islands");
			hm.put("fo", "Faroe Islands");
			hm.put("fj", "Fiji");
			hm.put("fi", "Finland");
			hm.put("fr", "France");
			hm.put("gf", "French Guyana");
			hm.put("tf", "French Southern Territories");
			hm.put("ga", "Gabon");
			hm.put("gm", "Gambia");
			hm.put("ge", "Georgia");
			hm.put("de", "Germany");
			hm.put("gh", "Ghana");
			hm.put("gi", "Gibraltar");
			hm.put("gr", "Greece");
			hm.put("gl", "Greenland");
			hm.put("gd", "Grenada");
			hm.put("gp", "Guadeloupe (French)");
			hm.put("gu", "Guam (USA)");
			hm.put("gt", "Guatemala");
			hm.put("gn", "Guinea");
			hm.put("gw", "Guinea Bissau");
			hm.put("gy", "Guyana");
			hm.put("ht", "Haiti");
			hm.put("hm", "Heard and McDonald Islands");
			hm.put("va", "Holy See (Vatican City State)");
			hm.put("hn", "Honduras");
			hm.put("hk", "Hong Kong");
			hm.put("hu", "Hungary");
			hm.put("is", "Iceland");
			hm.put("in", "India");
			hm.put("id", "Indonesia");
			hm.put("ir", "Iran");
			hm.put("iq", "Iraq");
			hm.put("ie", "Ireland");
			hm.put("il", "Israel");
			hm.put("it", "Italy");
			hm.put("ci", "Ivory Coast (Cote D'Ivoire)");
			hm.put("jm", "Jamaica");
			hm.put("jp", "Japan");
			hm.put("jo", "Jordan");
			hm.put("kz", "Kazakhstan");
			hm.put("ke", "Kenya");
			hm.put("ki", "Kiribati");
			hm.put("kw", "Kuwait");
			hm.put("kg", "Kyrgyz Republic (Kyrgyzstan)");
			hm.put("la", "Laos");
			hm.put("lv", "Latvia");
			hm.put("lb", "Lebanon");
			hm.put("ls", "Lesotho");
			hm.put("lr", "Liberia");
			hm.put("ly", "Libya");
			hm.put("li", "Liechtenstein");
			hm.put("lt", "Lithuania");
			hm.put("lu", "Luxembourg");
			hm.put("mo", "Macau");
			hm.put("mk", "Macedonia");
			hm.put("mg", "Madagascar");
			hm.put("mw", "Malawi");
			hm.put("my", "Malaysia");
			hm.put("mv", "Maldives");
			hm.put("ml", "Mali");
			hm.put("mh", "Marshall Islands");
			hm.put("mq", "Martinique (French)");
			hm.put("mr", "Mauritania");
			hm.put("mu", "Mauritius");
			hm.put("yt", "Mayotte");
			hm.put("mx", "Mexico");
			hm.put("fm", "Micronesia");
			hm.put("md", "Moldavia");
			hm.put("mc", "Monaco");
			hm.put("mn", "Mongolia");
			hm.put("ms", "Montserrat");
			hm.put("ma", "Morocco");
			hm.put("mz", "Mozambique");
			hm.put("mm", "Myanmar");
			hm.put("na", "Namibia");
			hm.put("nr", "Nauru");
			hm.put("np", "Nepal");
			hm.put("nl", "Netherlands");
			hm.put("an", "Netherlands Antilles");
			hm.put("nc", "New Caledonia (French)");
			hm.put("nz", "New Zealand");
			hm.put("ni", "Nicaragua");
			hm.put("ne", "Niger");
			hm.put("ng", "Nigeria");
			hm.put("nu", "Niue");
			hm.put("nf", "Norfolk Island");
			hm.put("kp", "North Korea");
			hm.put("mp", "Northern Mariana Islands");
			hm.put("no", "Norway");
			hm.put("om", "Oman");
			hm.put("pk", "Pakistan");
			hm.put("pw", "Palau");
			hm.put("pa", "Panama");
			hm.put("pg", "Papua New Guinea");
			hm.put("py", "Paraguay");
			hm.put("pe", "Peru");
			hm.put("ph", "Philippines");
			hm.put("pn", "Pitcairn Island");
			hm.put("pl", "Poland");
			hm.put("pf", "Polynesia (French)");
			hm.put("pt", "Portugal");
			hm.put("pr", "Puerto Rico");
			hm.put("qa", "Qatar");
			hm.put("re", "Reunion (French)");
			hm.put("ro", "Romania");
			hm.put("ru", "Russian Federation");
			hm.put("rw", "Rwanda");
			hm.put("gs", "S. Georgia & S. Sandwich Isls.");
			hm.put("sh", "Saint Helena");
			hm.put("kn", "Saint Kitts & Nevis Anguilla");
			hm.put("lc", "Saint Lucia");
			hm.put("pm", "Saint Pierre and Miquelon");
			hm.put("st", "Saint Tome (Sao Tome) and Principe");
			hm.put("vc", "Saint Vincent & Grenadines");
			hm.put("ws", "Samoa");
			hm.put("sm", "San Marino");
			hm.put("sa", "Saudi Arabia");
			hm.put("sn", "Senegal");
			hm.put("sc", "Seychelles");
			hm.put("sl", "Sierra Leone");
			hm.put("sg", "Singapore");
			hm.put("sk", "Slovak Republic");
			hm.put("si", "Slovenia");
			hm.put("sb", "Solomon Islands");
			hm.put("so", "Somalia");
			hm.put("za", "South Africa");
			hm.put("kr", "South Korea");
			hm.put("es", "Spain");
			hm.put("lk", "Sri Lanka");
			hm.put("sd", "Sudan");
			hm.put("sr", "Suriname");
			hm.put("sj", "Svalbard and Jan Mayen Islands");
			hm.put("sz", "Swaziland");
			hm.put("se", "Sweden");
			hm.put("ch", "Switzerland");
			hm.put("sy", "Syria");
			hm.put("tj", "Tadjikistan");
			hm.put("tw", "Taiwan");
			hm.put("tz", "Tanzania");
			hm.put("th", "Thailand");
			hm.put("tg", "Togo");
			hm.put("tk", "Tokelau");
			hm.put("to", "Tonga");
			hm.put("tt", "Trinidad and Tobago");
			hm.put("tn", "Tunisia");
			hm.put("tr", "Turkey");
			hm.put("tm", "Turkmenistan");
			hm.put("tc", "Turks and Caicos Islands");
			hm.put("tv", "Tuvalu");
			hm.put("um", "USA Minor Outlying Islands");
			hm.put("ug", "Uganda");
			hm.put("ua", "Ukraine");
			hm.put("ae", "United Arab Emirates");
			hm.put("uk", "United Kingdom");
			hm.put("uy", "Uruguay");
			hm.put("uz", "Uzbekistan");
			hm.put("vu", "Vanuatu");
			hm.put("ve", "Venezuela");
			hm.put("vn", "Vietnam");
			hm.put("vg", "Virgin Islands (British)");
			hm.put("vi", "Virgin Islands (USA)");
			hm.put("wf", "Wallis and Futuna Islands");
			hm.put("eh", "Western Sahara");
			hm.put("ye", "Yemen");
			hm.put("yu", "Yugoslavia");
			hm.put("zr", "Zaire");
			hm.put("zm", "Zambia");
			hm.put("zw", "Zimbabwe");

	}

	public String getCountry(String selected) {
		Iterator it=hm.keySet().iterator(); 
		String ret = "";
		while(it.hasNext()) {
			String key = (String)it.next();
			if (selected.equals(key)){
				ret += "<option value=\"" + key + "\" selected>" + hm.get(key) + "</option>";
			}
			else{
				ret += "<option value=\"" + key + "\">" + hm.get(key) + "</option>"; 
			}
	
		}
	return ret;
	}

}

Senare:

list.CountryList cl = new list.CountryList();
cl.getCountry(form.getCountry())

Andreas