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
1 File file; /* defines file to be object of class File */
2 try{
  • file = new File("filenameyouwant");
  • .......
  • file.write("stuff put out");
3 } catch (IOException e) {
4 /* This catches ALL I/O errors including read and write stuff */
5 /* After Handling Some How */
6 return; /* but the finally clause will be executed whether or not code terminates normally */
7 } /* We must close file whatever happens */
8 finally {
  • file.close();
9 }
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