Java中使用Arrays.asList初始化ArrayList

Posted 2021-03-26 wangling1820

package xiaoling;
import java.util.Arrays;
import java.util.ArrayList;
import java.util.List;
public class ListTest{
        public static void main(String[] args){
                List<List<Integer>> list = new ArrayList<>();
                for (int num=0; num<10; ++num){
                        list.add(new ArrayList(Arrays.asList(num, num+1)));
                }
                System.out.println(list);
        }
}

 运行结果为：[[0, 1], [1, 2], [2, 3], [3, 4], [4, 5], [5, 6], [6, 7], [7, 8], [8, 9], [9, 10]]