拋出的替代代碼拋出IOException

Question

我需要在代碼中做什麼更改如果我刪除了「throws IOException」行？

import java.io.*; 
class Buffered_class{ 
    public static void main(String[] args) 
        throws IOException // remove this line 
    { 
     char c; 
     BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); 
     System.out.print("Enter characters, 'q' to quit"); 
     do{ 
      c= (char)br.read(); 
      System.out.println(" you entered : " + c); 
     }while(c !='q'); 
    } 
} 

Answer 1

您需要捕獲異常

import java.io.*;  
class Buffered_class{ 
    public static void main(String[] args) 
    { 
     char c; 
     try{ 
      BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); 
      System.out.print("Enter characters, 'q' to quit");   
      do{ 
       c= (char)br.read(); 
       System.out.println(" you entered : " + c); 

      }while(c !='q'); 
     }catch(IOException e){ 
      // do something 
     }finally{ 
      br.close(); 
    } 
}