How to sort an ArrayList in Java [duplicate]
Use a Comparator like this:
List<Fruit> fruits= new ArrayList<Fruit>();Fruit fruit;for(int i = 0; i < 100; i++){ fruit = new Fruit(); fruit.setname(...); fruits.add(fruit);}// SortingCollections.sort(fruits, new Comparator<Fruit>() { @Override public int compare(Fruit fruit2, Fruit fruit1) { return fruit1.fruitName.compareTo(fruit2.fruitName); } });Now your fruits list is sorted based on fruitName.
Implement Comparable interface to Fruit.
public class Fruit implements Comparable<Fruit> {It implements the method
@Override public int compareTo(Fruit fruit) { //write code here for compare name }Then do call sort method
Collections.sort(fruitList);
Try BeanComparator from Apache Commons.
import org.apache.commons.beanutils.BeanComparator;BeanComparator fieldComparator = new BeanComparator("fruitName");Collections.sort(fruits, fieldComparator);