How to deal with checked exception (UnsupportedEncodingException) that can never occurs?

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David Miller · Answer

The exceptionand UnsupportedEncodingExceptionand 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 caseand : 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 :
String s = "1,2,3,4";String smsext = null;try{and and and  smsext = new String(s.getBytes(),"UTF-8");}catch(UnsupportedEncodingException e){and and and  //can never occurs}
But I don't recommend this over simplistic approachand because silently catching an exception is almost always a very bad practice. A more appropriate solution for catched exception thatand never appendand is to rethrow the exception encapsulated in a non catched exception :
String s = "1,2,3,4";String smsext = null;try{and and and  smsext = new String(s.getBytes(),"UTF-8");}catch(UnsupportedEncodingException e){and and and  //can never occurs because UTF-8 is always supportedand and and  throw new RuntimeException(e);}
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.and

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How to deal with checked exception (UnsupportedEncodingException) that can never occurs?

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