不知道如何處理的FileWriter異常

-4

this.write("stuff")

和write方法是

public void write(String text) throws IOException 
{ 
    FileWriter writer = new FileWriter(path, true); 
    PrintWriter printer = new PrintWriter(writer); 
    printer.printf("%s" + "%n", text); 
    printer.close(); 
}

事情說有一個 "unreported exception java.io.IOException; must be caught or declared to be thrown"爲FileWriter。

我應該在try和catch語句中修復異常？

來源

2016-07-02 Andriy F.

你應該把你的電話給'this.write' try塊，趕在錯誤中提到的例外消息，然後優雅地對其進行處理。但是瞭解Java程序員，你可能只需要放入一個'printStackTrace'調用，而忘記其餘部分。 –

你說這個方法拋出一個異常，但是你不用try/catch塊來捕獲異常 – Li357

你需要處理異常。請參閱[捕獲和處理異常]（https://docs.oracle.com/javase/tutorial/essential/exceptions/handling.html） – copeg

如何處理任何類型的異常對Java開發至關重要。有兩種方法可以做到這一點：

public void write(String text) //notice I deleted the throw 
{ 
    try{ 
     FileWriter writer = new FileWriter(path, true); 
     PrintWriter printer = new PrintWriter(writer); 
     printer.printf("%s" + "%n", text); 
     printer.close(); 
    catch(IOException ioe){ 
     //you write here code if an ioexcepion happens. You can leave it empty if you want 
    } 
}

和...

public void write(String text) throws IOException //See here it says throws IOException. You must then handle the exception when calling the method 
{ 
    FileWriter writer = new FileWriter(path, true); 
    PrintWriter printer = new PrintWriter(writer); 
    printer.printf("%s" + "%n", text); 
    printer.close(); 
} 

//like this: 
public static void main(String[] args) //or wherever you are calling write from 
{ 
    try{ 
      write("hello"); //this call can throw an exception which must be caught somewhere 
     }catch(IOException ioe){/*whatever*/} 
}

來源

2016-07-03 07:35:04 Carlos

不知道如何處理的FileWriter異常

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