Question

Is there any way to compress the try/catch block codes? Right now, my code has a try/catch code inside a try/catch code.

if(petType.equals("DOG")) {

  try {
    String name = input.next();
    String owner = input.next();
    double weight = input.nextDouble();
    SimpleDateFormat stdDate = new SimpleDateFormat("MM/dd/yy");

    try {
      Date vaccineDate = stdDate.parse(input.next());
      boolean fixed = input.nextBoolean();
      Dog x = new Dog(name,owner,weight,vaccineDate,fixed);
      object.addPet(x);
    } 
    catch (ParseException ex) {
      System.out.println("ERROR - Vaccine date " + input.next() + " is not in mm/dd/yy format!");
      input.nextLine();
    }

  }
  catch(NoSuchElementException ex) {
    System.out.println("ERROR - Missing fields. Skipping line " + lineNumber + "...");
    input.nextLine();
  }

}

Answer 1

You could do this

if(petType.equals("DOG")) {

  try {
    String name = input.next();
    String owner = input.next();
    double weight = input.nextDouble();
    SimpleDateFormat stdDate = new SimpleDateFormat("MM/dd/yy");
    Date vaccineDate = stdDate.parse(input.next());
    boolean fixed = input.nextBoolean();
    Dog x = new Dog(name,owner,weight,vaccineDate,fixed);
    object.addPet(x);
  }
  catch(NoSuchElementException ex) {
    System.out.println("ERROR - Missing fields. Skipping line " + lineNumber + "...");
    input.nextLine();
  }
  catch (ParseException ex) {
    System.out.println("ERROR - Vaccine date " + input.next() + " is not in mm/dd/yy format!");
    input.nextLine();
  }
}

Or with Java 7

try {
...
} catch(ParseException | NoSuchElementException ex) {
...
}   

If that’s what you meant by compression.