System.out.println得简单问题
jyn01 2003-08-21 11:59:30 import java.util.*;
class CreateArrayList{
ArrayList al=new ArrayList();
System.out.println("ArrayList has been created");
}
public class Ex501 {
public static void main(String args[]){
CreateArrayList cal=new CreateArrayList();
}
}
为什么编译会出现System.out.println的class错误呢?
不明白请指教。