ArrayList 添加元素

Question

I'm a absolute beginner in Java and I searched for half an hour, but I just can't figure out why the following code won't compile:

  public class Main {
      ArrayList<Integer> path = new ArrayList<Integer>();
      path.add(0);
      path.add(1);
      Out.print(path);
  }

Thank you very much.

Answer 1

Please try the below specified snippet:

import java.util.ArrayList;

public class TestString {
    public static void main(String[] args){
      ArrayList<Integer> path = new ArrayList<Integer>();
      path.add(0);
      path.add(1);
      System.out.print(path);
    }
  }