Basic HTML version of Foils prepared 9 Sept 1997

Foil 52 Example of Handling Exceptions

From Java to be used in (Scientific) Computing Part II: Java Language and Object-Oriented Concepts Basic Simulation Track for Computational Science CPS615 -- Fall Semester 97. by Nancy J. McCracken,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) {
  • /* This catches ALL I/O errors including
    • read and write stuff */
  • /* Handle Exception somehow */
4 return;
5 }
6 /* but the optional finally clause will be executed
    • whether or not code terminates normally */
7 finally {
  • file.close();
8 }
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