Modify Array List using condition in Java 8 Stream API

Question

Could you please help me here for converting the below forEach into Stream.

Here is my code:

List<Addon> addonItems = <Some Addon List>

for (Addon addOn : addonItems) {
    if (GeoCode.TRP.toString().equals(addonItems.getSomeCode())) {
        addonItems.setName("Got from GOOGLE");
    }
}

Luke Langford · Accepted Answer · 2019-04-29 08:41:02Z

2

Your example code won't actually compile but i'll attempt to answer your question...

addonItems.stream().filter(addonItem -> GeoCode.TRP.toString().equals(addonItem.getSomeCode()))
    .forEach(addonItem -> addonItem.setName("Got from GOOGLE"));

What this code does is stream the elements in the addonItems list and filter for addonItems based on our lambda filter expression. It will perform this stream operation when the forEach is called and set the name of each addonItem accordingly based on our filter expression.

edited Apr 29, 2019 at 8:41

answered Apr 26, 2019 at 9:58

Luke Langford

1746 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Luke Langford Over a year ago

addonItems.setName would not compile. 'setName' is not a method available in the list object.

Collectives™ on Stack Overflow

Modify Array List using condition in Java 8 Stream API

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related