用java把如下元素存入List集合 “aaa” “bbb” “aaa” “abc”“xyz” “123” “xyz” 去掉重复元素。

import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;

public class Main {
    public static void main(String[] args) {
        List<String> list = new ArrayList<>(Arrays.asList("aaa", "bbb", "aaa", "abc", "xyz", "123", "xyz"));
        Set<String> set = new LinkedHashSet<>(list);
        list.clear();
        list.addAll(set);
        System.out.println(list); // 输出：[aaa, bbb, abc, xyz, 123]
    }
}