为什么我会得到“未处理的异常类型 IOException"? [英] Why do I get the "Unhandled exception type IOException"?

问题描述

我有以下简单的代码:

import java.io.*;
class IO {
    public static void main(String[] args) {    
       BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));    
       String userInput;    
       while ((userInput = stdIn.readLine()) != null) {
          System.out.println(userInput);
       }
    }
}

我收到以下错误消息:

----------
1. ERROR in io.java (at line 10)
    while ((userInput = stdIn.readLine()) != null) {
                        ^^^^^^^^^^^^^^^^
Unhandled exception type IOException
----------
1 problem (1 error)roman@roman-laptop:~/work/java$ mcedit io.java 

有人知道为什么吗?我只是试图简化 sum 网站上给出的代码(here).我是否过于简单化了?

Does anybody have any ideas why? I just tried to simplify the code given on the sum web site (here). Did I oversimplify?

推荐答案

您应该在 main 方法中添加throws IOException":

You should add "throws IOException" to your main method:

public static void main(String[] args) 抛出 IOException {

您可以在 JLS.

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