Answers for "how to remove duplicate object from list in java"

Java

java remove duplicates from list by property

import static java.util.Comparator.comparingInt;
import static java.util.stream.Collectors.collectingAndThen;
import static java.util.stream.Collectors.toCollection;

...
List<Employee> unique = employee.stream()
                                .collect(collectingAndThen(toCollection(() -> new TreeSet<>(comparingInt(Employee::getId))),
                                                           ArrayList::new));

Posted by: Guest on December-07-2021

Source

remove duplicates from list java

ArrayList<Object> withDuplicateValues;
 HashSet<Object> withUniqueValue = new HashSet<>(withDuplicateValues);
 
 withDuplicateValues.clear();
 withDuplicateValues.addAll(withUniqueValue);

Posted by: Guest on May-17-2021

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Answers for "how to remove duplicate object from list in java"

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