java,将list作为参数传入 java list转换成另一个list

代码:

import java.util.ArrayList;

public class main {

    public static void main(String[] args) {
        ArrayList List1 = new ArrayList();
        for(int i = 0; i<10;i++) {
            List1.add(i);
        }
        System.out.println("List1:" + List1);
        ArrayList List2 = new ArrayList();
        List2.addAll(List1);
        System.out.println("List2:" + List2);
    }

}

 

结果: