I am trying transform a string to UTF-8 encoding. But the compilation fails because some code "throws UnsupportedEncodingException".
String s = "1,2,3,4";
String smsext = new String(s.getBytes(),"UTF-8");
how to solve this ?
Home / DeveloperSection / Forums / How to deal with checked exception (UnsupportedEncodingException) that can never occurs?
I am trying transform a string to UTF-8 encoding. But the compilation fails because some code "throws UnsupportedEncodingException".
String s = "1,2,3,4";
String smsext = new String(s.getBytes(),"UTF-8");
how to solve this ?
David Miller
17-Nov-2014The exception UnsupportedEncodingException is thrown by the String constructor (not by Android Studio !!!). This is a checked exception and so your code must handle it in some way.
In this particular case : the exception will never be thrown because "UTF-8" is hardcoded and always supported by any JVM (this is a requirement). So you can catch it silently :
But I don't recommend this over simplistic approach because silently catching an exception is almost always a very bad practice. A more appropriate solution for catched exception that never append is to rethrow the exception encapsulated in a non catched exception :
With this code, if one day you change the body of the try-catch block so that UnsupportedEncodingException can possibly occurs : the exception won't be ignored silently.