List Sorting in JSP

akuccputsedut · #1 (**permalink**) 10-13-09, 03:43

I need help to sort this list to be alphabetically
I have an array list in this list name have different categories and color. I need to sort it by cotegories, color and sort by ascending order

the out come will be like this Ami is name, cat is categories and color is blue..(color that I mention is color font)
Ami-cat-blue
Aki-cat-blue
Bobo-cat-blue
Bobby-dog-yellow
riki-dog-yellow

Code:

for( int i=0; i < records.size(); i++) {

               if (((String) (((Attributes) records.elementAt(i)).get("animaltype").get())).equals("cat")) {
                   catList.add(records.elementAt(i));

               } else if (((String) (((Attributes) records.elementAt(i)).get("animaltype").get())).equals("dogs")) {
                   dogsList.add(records.elementAt(i));
               }

records.removeAllElements();

            records.addAll(catList);
            records.addAll(dogsList);

now I can sort it by color and categories but how to make name list in ascending order in jsp
Need HELP...thank you

dimis2500 · #2 (**permalink**) 10-14-09, 06:52

You mean this?

Pyrophorus · #3 (**permalink**) 10-16-09, 03:59

Maybe you could declare a method "compareTo" in your "Attribute" class:

Code:

int compareTo(Attribute toComp) {
 String s1 = toComp.animalName + "-" + toComp.animalType + "-" + toComp.color;
 String s2 = animalName + "-" + animalType + "-" + color;
 return s1.compareTo(s2);
}

Then you can sort Attribute as if they were String(s).

Hope this helps

Internet Services

Web Development

Digital Marketing

Consumer Tech