Java错误提示--------Only a type can be imported. java.awt.event resolves to a package

package com.ACTenter;

// 我错了：import java.awt.event; import 是用于导入一个包的，但是 ：java.awt.event是一个包。

public class Actenter implements ActionListener

{

}

// 报错：Only a type can be imported. java.awt.event resolves to a package

// 解析：仅类能被导入，java.awt.event解析为包。