Basic HTML version of Foils prepared 18 May 97

Foil 79 Example of Handling Exceptions

From Java Tutorial - Spring 1997 Part II: Java Language and Object-Oriented Concepts Peking Tutorial, Web Certificate -- Spring-Summer 1997. by Nancy J. McCracken,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 */
  • /* Handle Exception somehow */
return;
}
/* but the optional finally clause will be executed
    • whether or not code terminates normally */
finally {
  • file.close();
}

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