import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collections;

import java.util.List;

public class Test extends SupTeset {

    public static void main(String [] args){

        List<String> s=new ArrayList<>();

        Collections.addAll(s,new String[3]);

        List<String> ss=new ArrayList<>(Arrays.asList("a","b","c"));

        Collections.copy(s,ss);

    }

}

示例一

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collections;

import java.util.List;

public class Test extends SupTeset {

    public static void main(String [] args){

　　　　 List<String> s=Arrays.asList(new String[3]);

　　　　 List<String> ss=new ArrayList<>(Arrays.asList("a","b","c"));

        Collections.copy(s,ss);

    }

}