Delete a XML input file Java -

i reading xml file, process elements , write xml file elements extracted form input file. using stax cursor: read elements xmlstreamreader , write elements in file using xmlstreamwriter.

the reader:

 xmlinputfactory inputfactory = xmlinputfactory.newinstance();     xmlstreamreader streamreader = inputfactory.createxmlstreamreader(new filereader(inputfile)); 

the writer:

xmloutputfactory outputfactory = xmloutputfactory.newinstance(); xmlstreamwriter streamwriter = outputfactory.createxmlstreamwriter(new fileoutputstream (outputfile),"utf-8"); 

after finish processing , writing output file, want delete file read (the input file). trhis using:

public void deleteinputfile(string inputfile) {         file filetodelete = new file(inputfile);         if(filetodelete.delete()){             system.out.println(filetodelete.getname() + " deleted!");         }else{             system.out.println("delete operation failed.");         }     } 

all program works fine, delete opretion fails. response:

delete operation failed.

i think reader close input file after reads it.

the question is, showld delete input file after writing file need?

make sure close input stream , delete file.

you can delete files, directories or links. symbolic links, link deleted , not target of link. directories, directory must empty, or deletion fails.

the files class provides 2 deletion methods.

the delete(path) method deletes file or throws exception if deletion fails. example, if file not exist nosuchfileexception thrown. can catch exception determine why delete failed follows:

try {     files.delete(path); } catch (nosuchfileexception x) {     system.err.format("%s: no such" + " file or directory%n", path); } catch (directorynotemptyexception x) {     system.err.format("%s not empty%n", path); } catch (ioexception x) {     // file permission problems caught here.     system.err.println(x); } 

the deleteifexists(path) method deletes file, if file not exist, no exception thrown. failing silently useful when have multiple threads deleting files , don't want throw exception because 1 thread did first.

taken https://docs.oracle.com/javase/tutorial/essential/io/delete.html

here example http://www.mkyong.com/java/how-to-delete-file-in-java/