getWriter标红不提示咋回事

代码：
<%@ page import="com.ujiuye.entity.Student" %><%--
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User: lenovo
Date: 2022/7/14
Time: 19:00
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--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<% Student masu = new Student(101,"masu",20); // System.out.println(masu.getId()+"\t"+masu.getName()+"\t"+masu.getAge()); response.getWriter.print(masu.getId()+"\t"+masu.getName()+"\t"+masu.getAge()); %> 运行结果

已弄好，忘倒jar包了