Find min amount in a list of objects using Java if there is a tie

Question

I have a list of objects. I need to find the minimum amount from a list of objects. But if there is a tie, then need to find the one with minimum Age. How to accomplish it using java 8?

class TestObject{
    private Double amount;
    private int age;
}

List<TestObject> objectList = getAllItems();
TestObject obj = objectList.stream()
            .min(Comparator
            .comparing(TestObject::getAmount))
            .get();

Does this answer your question? [How to sort by two fields in Java?](https://stackoverflow.com/questions/4805606/how-to-sort-by-two-fields-in-java) — Yoshikage Kira, Jun 20 '21 at 23:30

score 6 · Accepted Answer · answered Jun 20 '21 at 23:33

To combine two fields in the comparator you can use the answer linked by Goion or use the thenComparing function like this:

TestObject obj = objectList
      .stream() 
      .min(Comparator.comparing(TestObject::getAmount)
                     .thenComparing(TestObject::getAge))
      .get();

Find min amount in a list of objects using Java if there is a tie

1 Answers1