Basic HTML version of Foils prepared May 12 1996

Foil 83 Handling Exceptions in Closing a File

From CRPC Lectures on Java Language Applets Graphics CRPC Annual Meeting Tutorial -- May 14,1996. by Geoffrey C. Fox
File file; /* defines file to be object of class File */
try{
  • file = new File("filenameyouwant");
  • .......
  • file.write("stuff put out");
} catch (IOException e) {
/* This catches ALL I/O errors including read and write stuff */
/* After Handling Some How */
return; /* but the finally clause will be executed whether or not code terminates normally */
} /* We must close file whatever happens */
finally {
  • file.close();
}

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