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Why not to enclose in try-catch block??

 
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here is the program that i tried to compile...

import java.io.*;

class Writer4 {

public static void main(String... args) {

try {

String[] files = new String[50];

File search = new File("newDir");
files = search.list();

for(String fn: files)
System.out.println("Found:: " + fn);
}
catch(IOException e) {
e.printStackTrace();
}
}
}

I got this unusual complier error::

Writer4.java:17: exception java.io.IOException is never thrown in body of corresponding try statement
catch(IOException e) {

but if i remove the try-catch block it complies fine!!!

why there is no need to enclose the code in try-catch block even though we are dealing with files..??

[ June 22, 2007: Message edited by: Priyam Srivastava ]
 
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Mac Java Ubuntu
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Because there is no checked exception is being thrown in your code..

And by writing IOException, U are being more specific to checked exception..

You can try by writing Exception instead of IOException..
The code will work fine..
As that will be more generic and include runtime exceptions..

By handling IOException, you are being more specific to unthrown checked exception..
 
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hi priyam

this is because neither list() nor file(String pathName) constructor of File class throws IOException. You can verify this fact from java API.
 
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Since because any of the executable statements inside try block does not seem to throw the exception whose type is being caught in catch block, the compiler gives an error saying that the specific exception is never thrown.

HtH.
 
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