How to apply multiple Filters on Java Stream?

Question

I have to filter a Collection of Objects by a Map, which holds key value pairs of the Objects field names and field values. I am trying to apply all filters by stream().filt

Answer 1

It has nothing to do with filter. Actually the filter never work as per your code. Look at

//Does not apply the result
filterMap.forEach((key, value) -> list.stream()
        .filter(testObject -> testObject.getProperty(key) == value)
        .collect(Collectors.toList())
);

List has been filtered but nothing is changed here. No element has been deleted and No object address has been changed either. Try removeIf

// Does not apply the result
filterMap.forEach((key, value) -> list.removeIf(testObject -> testObject.getProperty(key) != value));

output is

1 2 3