Showing posts with label java code. Show all posts
Showing posts with label java code. Show all posts

Thursday, June 13, 2013

Sorting the list Objects Based on Date Wise (format):

Sorting the list Objects Based on Date Wise (format):

POJO Class Or Persist Class:
----------------------------
public class News {
public String getTitle() {
return title;
}
public String getDate() {
return date;
}
public String getDescription() {
return description;
}
public News(String title, String date, String description) {
super();
this.title = title;
this.date = date;
this.description = description;
}
private String title, date, description;
}


In Your Activity Class:
-------------------------
private SimpleDateFormat formatter, FORMATTER;
FORMATTER = new SimpleDateFormat("MMMMM dd, yyyy", Locale.ENGLISH);
private ArrayList<News> newsList = new ArrayList<News>();

newsList.add(new News("Title1", "January 26, 2013"), "DESC 1");
newsList.add(new News("Title2", "August 15, 2011"), "DESC 2");
newsList.add(new News("Title3", "October 02, 2012"), "DESC 3");
newsList.add(new News("Title4", "November 05, 2013"), "DESC 4");
newsList.add(new News("Title5", "August 15, 2012"), "DESC 5");

after finishing adding to list:
/* sorting of objects begin here  */  
Collections.sort(newsList, new customComparator());


Make this class as Sub Class of your activity class.
public class customComparator implements Comparator {
   public int compare(Object  object1, Object  object2) {
    News e1 = (News) object1;
    News e2 = (News) object2;
   
    Date d1 = null;
       Date d2 = null;
       try {
           d1 = FORMATTER.parse(e1.getDate());
           d2 = FORMATTER.parse(e2.getDate());
       } catch (ParseException e) {
           e.printStackTrace();
       }
       return (d1.getTime() > d2.getTime() ? -1 : 1);     //descending
   //  return (d1.getTime() > d2.getTime() ? 1 : -1);     //ascending
   }
}

Thursday, March 29, 2012

To replace a character in the String (date) with another character

To replace a character in the String (date) with another character 

String abc = "Sunday 02/10/1986, 12.00"

replace "," with "--" 

abc.replace("," , "--"));