Name Interface Tomcat Implementation
out javax.servlet.jsp.JspWriter org.apache.jasper.runtime.JspWriterImpl

How to access JSP implicit object out in a JSP file?

<%out.print("to the screen");%>

JSP implicit object out example program

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<!-- jsp implicit object out example -->
JSP implicit object out class : <%=out.getClass().getCanonicalName() %> <p/>
<!-- the above line will return org.apache.jasper.runtime.JspWriterImpl,
its an implementation of javax.servlet.jsp.JspWriter -->
<%out.print("to the screen");%>