How to sort an ArrayList in Java
arraylist, collections, java, sorting
Solution
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);
}
// Sorting
Collections.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`.
Problem
I have a class named Fruit. I am creating a list of this class and adding each fruit in the list. I want to sort this list based on the order of fruit name. ``` public class Fruit{ private String fruitName; private String fruitDesc; private int quantity; public String getFruitName() { return fruitName; } public void setFruitName(String fruitName) { this.fruitName = fruitName; } public String getFruitDesc() { return fruitDesc; } public void setFruitDesc(String fruitDesc) { this.fruitDesc = fruitDesc; } public int getQuantity() { return quantity; } public void setQuantity(int quantity) { this.quantity = quantity; } } ``` and I am creating its list using for loop ``` List<Fruit> fruits= new ArrayList<Fruit>(); Fruit fruit; for(int i=0;i<100;i++) { fruit = new fruit(); fruit.setname(...); fruits.add(fruit); } ``` and I need to sort this arrayList using the fruit name of each object in the list how??