<%@page contentType="text/html;charset=GB2312"%>
<%@page import="java.io.*"%>
<%@page import="java.sql.*"%>
<%@page import="java.util.*"%>
<html>
<body>
<%
Float c1=11.3;
Float c2=13.4;
out.print(c1+c2);
%>
</body>
</html>
--------------
错误代码
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 8 in the jsp file: /tq.jsp
Generated servlet error:
[javac] Compiling 1 source file
D:\tomcat\work\Catalina\localhost\_\org\apache\jsp\tq_jsp.java:54: incompatible types
found : double
required: java.lang.Float
Float c1=11.3;
^
An error occurred at line: 8 in the jsp file: /tq.jsp
Generated servlet error:
D:\tomcat\work\Catalina\localhost\_\org\apache\jsp\tq_jsp.java:55: incompatible types
found : double
required: java.lang.Float
Float c2=13.4;
^
An error occurred at line: 8 in the jsp file: /tq.jsp
Generated servlet error:
D:\tomcat\work\Catalina\localhost\_\org\apache\jsp\tq_jsp.java:56: operator + cannot be applied to java.lang.Float,java.lang.Float
out.print(c1+c2);
^
3 errors
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:127)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:351)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:415)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:458)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:552)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:291)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
note The full stack trace of the root cause is available in the Tomcat logs.
