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在j2ee中,有如下代码在servlet1.java中  Important javax.servelt.*;  Important javax.servlet.http.*  Import java.io.ioexception  Import java.io.printwriter  Public class servlet1 extends httpservlet{  Public void init() throws serveltexception{ }  Public void service(httpservelt request request,httpserbletresponse response)throws servletexception,ioexception{   Printwriter out=response.getwriter();   Out.println(“hello”); } }  假如编译serblet 要具备的环境都已经建立好,现在用完全正确的命令编译该文件,对于以下陈述正确的是() 

  • A、编译该文件时会提示缺少doget()或者dopost()方法,编译不能够成功通过
  • B、编译后,把servlet1.class放在正确位置,在浏览器中查看该servlet1,会看到输出文字:“hello”
  • C、编译后,把servlet1.class放在正确位置,在浏览器中查看该servlet1,却看不到任何输出的文字
  • D、编译后,把servlet1.class放在正确位置,在浏览器中查看该servlet1,却看到产生运行时错误的出差信息

参考答案

更多 “ 在j2ee中,有如下代码在servlet1.java中  Important javax.servelt.*;  Important javax.servlet.http.*  Import java.io.ioexception  Import java.io.printwriter  Public class servlet1 extends httpservlet{  Public void init() throws serveltexception{ }  Public void service(httpservelt request request,httpserbletresponse response)throws servletexception,ioexception{   Printwriter out=response.getwriter();   Out.println(“hello”); } }  假如编译serblet 要具备的环境都已经建立好,现在用完全正确的命令编译该文件,对于以下陈述正确的是() A、编译该文件时会提示缺少doget()或者dopost()方法,编译不能够成功通过B、编译后,把servlet1.class放在正确位置,在浏览器中查看该servlet1,会看到输出文字:“hello”C、编译后,把servlet1.class放在正确位置,在浏览器中查看该servlet1,却看不到任何输出的文字D、编译后,把servlet1.class放在正确位置,在浏览器中查看该servlet1,却看到产生运行时错误的出差信息” 相关考题
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考题 单选题在j2ee中,有如下代码在servlet1.java中  Important javax.servelt.*;  Important javax.servlet.http.*  Import java.io.ioexception  Import java.io.printwriter  Public class servlet1 extends httpservlet{  Public void init() throws serveltexception{ }  Public void service(httpservelt request request,httpserbletresponse response)throws servletexception,ioexception{   Printwriter out=response.getwriter();   Out.println(“hello”); } }  假如编译serblet 要具备的环境都已经建立好,现在用完全正确的命令编译该文件,对于以下陈述正确的是()A 编译该文件时会提示缺少doget()或者dopost()方法,编译不能够成功通过B 编译后,把servlet1.class放在正确位置,在浏览器中查看该servlet1,会看到输出文字:“hello”C 编译后,把servlet1.class放在正确位置,在浏览器中查看该servlet1,却看不到任何输出的文字D 编译后,把servlet1.class放在正确位置,在浏览器中查看该servlet1,却看到产生运行时错误的出差信息

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考题 单选题在J2EE中,有如下代码在Servlet1.Java中    Import javax.servlet.*;    Import javax.servlet.http.*    Import java.io.IOException;     Import java.io.PrintWriter;    Public class Servlet1 extends HttpServlet{  Public void init () throw ServletException {}   Public void service(HttpServletRequest request,  HttpServletResponce response) throws ServletException,IOException{  PrintWriter out=response.getWriter();   Out.println(“hello!”); } }  假如编译Servlet要具备的环境都已经建立好。现在用完全正确的命令编译该文件,对于以下成熟正确的是()A 编译该晚间时会提示缺少doGe()t或者doPost(),编译不能够成功通过B 编译后,把Serlvet.cass放在正确的位置,在浏览器中查看该Servlet1,会看到输出文在:“hello!”C 编译后,把Servlet.class放在正确的位置,在浏览器中查看该Servlet1,却看不到任何输出的文字D 编译后,把Servlet.class放在正确的位置,在浏览器中查看该Servlet1,却看到产生运行时错误的出错信息

考题 单选题在J2EE中,有如下代码在Servlet1.java中  Import  javax.servlet.*;  Import  javax,servlet.http.*;  Import  java.io,IOException;  Import  java.io.PrintWriter;  Public  class Servlet1 extends HttpServlet{  Public void init() throws  ServletException{}  Public void service(HttpServletRequest  request, HttpServletResponse  response) throws ServletException,IOException{  PrintWriter out = reponse.getWriter(); Out.println("hello!"); } }  假如要编  译的环境已都已经搭建好。现在用完全正确的命令编译该文件,对于以下陈述正确的是();A 编译文件时会提醒缺少doGet和doPost方法,编译不能成功通过B 编译后,把Servlet.Class放在正确的位置,在浏览器查看该Servlet会看到输出文字:“hello”C 编译后,把Servlet.Class放在正确的位置,在浏览器查看该Servlet却看不到任何文字D 编译后,把Servlet.Class放在正确的位置,在浏览器查看该Servlet会却看到运行时的错误信息

考题 单选题interface Data { public void load(); }  abstract class Info { public abstract void load(); }  Which class correctly uses the Data interface and Info class?()A  public class Employee extends Info implements Data { public void load() { /*do something*/ } }B  public class Employee implements Info extends Data { public void load() { /*do something*/ } }C  public class Employee extends Info implements Data { public void load() { /*do something */ } public void Info.load() { /*do something*/ } }D  public class Employee implements Info extends Data { public void Data.load() { /*dsomething */ } public void load() { /*do something */ } }E  public class Employee implements Info extends Data { public void load() { /*do something */ } public void Info.load(){ /*do something*/ } }F  public class Employee extends Info implements Data{ public void Data.load() { /*do something*/ } public void Info.load() { /*do something*/ } }