Question

我在目录LibUtil中有文件Item.java的包LibUtil。在此文件中，我有public class Item

package LibUtil;
public class Item
{
 static protected int id=0;
 protected int type;
 protected String name;
 protected String category;

public Item(int type,String name,String category)
 {
  id++;
  this.type = type;
  this.name = name;
  this.category = category;
 }

 public int GetId()
 {
  return id;
 }

 public int GetType(){
   return type;
  } 


 public void SetType(int type){
   this.type = type;
  }

 public String GetName(){
   return name;
  }

 public void SetName(String name){
   this.name = name;
  }

 public void SetCategory(){
   this.category = category;
  }
public String getCategory(){
   return category;
  }
}

我从LibUtil导入这个类。

import LibUtil.Item;
public class Library{
 public static void main(String[] args){
   Item test = new Item(1,"XYZ","Alpha");


    }

}

当我正在编译这个项目时，编译器产生如下输出：

Library.java:1: LibUtil.Item is not public in LibUtil; cannot be accessed from outside package
import LibUtil.Item;
              ^
Library.java:4: cannot find symbol
symbol  : class Item
location: class Library
   Item test = new Item(1,"XYZ","Alpha");
   ^
Library.java:4: cannot find symbol
symbol  : class Item
location: class Library
   Item test = new Item(1,"XYZ","Alpha");
                   ^
3 errors

如何解决这个问题？

Upd：我尝试使用命令重建项目：

javac LibUtil/Item.java
javac Library.java

Answer 1

在我的源文件中，我找到了Item.java的副本。并且在这个重复的类中，Item没有public修饰符。感谢所有本主题答案的作者

在java中导入包时出错

1 个答案: