public static void main(String[] args) {
int[] whee = new int[5];
try {
Blah testBlah = new Blah();
testBlah.xxx().toString();
} catch (NullPointerException e) {
System.out.println("NullPointerException message: " + e.getMessage());
e.printStackTrace();
System.out.println("------------------------");
System.out.println();
}
try {
int[] whee2 = new int[-2];
} catch (NegativeArraySizeException e) {
System.out.println("NegativeArraySizeException message: " + e.getMessage());
e.printStackTrace();
System.out.println("------------------------");
System.out.println();
}
try {
whee[9] = 3;
} catch (IndexOutOfBoundsException e) {
System.out.println("IndexOutOfBoundsException message: " + e.getMessage());
e.printStackTrace();
System.out.println("------------------------");
System.out.println();
}
try {
divide(whee, 10);
} catch (MyException e) {
System.out.println("Custom message: " + e.getMessage());
}
try {
divide(whee, -2);
} catch (MyException e) {
System.out.println("Custom message: " + e.getMessage());
}
}
// This method invokes b(), which is declared to throw
// one type of exception. We handle that one exception.
public static void a(int i) {
try {
b(i);
} catch (MyException e) { // Point 1.
// Here we handle MyException and
// its subclass MyOtherException
if (e instanceof MySubException) System.out.print("MySubException: ");
else System.out.print("MyException: ");
System.out.println(e.getMessage());
System.out.println("Handled at point 1");
}
}
public List<String> getValidationErrors() {
List<String> errors = new ArrayList<>();
if (getDate() == null || getDate().length() == 0) {
errors.add("Date is required");
}
if (getAction() == null) {
errors.add("Button is required");
}
if (errors.size() > 0) {
return errors;
}
if (getAction() != "Update Price") {
errors.add("Button is invalid");
}
try {
Date transitionDate = dateFormat(getDate());
// TODO: if date input is smaller than database last entry, return error.
} catch (MyException e) {
errors.add(e.getMessage());
}
try {
String error = checkNumberFormat(getPrice());
if (!error.equals("")) {
errors.add(error);
}
} catch (MyException e) {
errors.add(e.getMessage());
}
return errors;
}
