Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
174 views
in Technique[技术] by (71.8m points)

I'm trying to make an ArrayList public(in java) so I can access it in a different class, what am I doing wrong?

There is an error and I'm not sure what I'm supposed to do without being unable to access the ArrayList in another class

package LifeGame;
import java.util.ArrayList;
public class Lists {

    public static void main(String[] args) {
    public ArrayList<String> tasks = new ArrayList<String>(); { // error on `tasks`
        tasks.add("Phone");
    }

    }
}
See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Variables inside a method are only accessible by name from inside that same method. Class members — variable defined outside of methods — are the only ones that can be public, private, etc.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...