4dkankan-center-manage/src/main/java/com/fdkankan/manage/util/ListUtils.java

package com.fdkankan.manage.util;

import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
import java.util.stream.Stream;

public class ListUtils {

    public static <T> boolean checkForDuplicates(T... array) {
        Set<T> set = new HashSet<>(Arrays.asList(array));
        return array.length != set.size();
    }

    private static <T> boolean checkForDuplicates2(T... array) {
        Long distinctCount = Stream.of(array).distinct().count();
        return array.length != distinctCount;
    }
}