Modify property value of the objects in list using Java 8 streams

Question

I have a list of Fruit objects in ArrayList and I want to modify fruitName to its plural name.

Refer the example:

@Data
@Al         


        

Answer 1

You can do it using streams map function like below, get result in new stream for further processing.

Stream newFruits = fruits.stream().map(fruit -> {fruit.name+="s"; return fruit;});
        newFruits.forEach(fruit->{
            System.out.println(fruit.name);
        });