ArrayListの並べ替え - Qiita

public class MyData{ String url; String title; String contents; String type; java.util.Date date; public MyData(String url, String title, String contents, String type, java.util.Date date){ this.url = url; this.title = title; this.contents = contents; this.type = type; this.date = date; } public String getUrl() { return url; } public String getTitle(){ return title; } public String getContents(){