public class Program {

    public static void main(String[] args) {

	String invalid = "turnip";
	int result = -100; // A default result.
	try {
	    // This throws an exception because the string is invalid.
	    result = Integer.parseInt(invalid);
	} catch (NumberFormatException n) {
	    // ... Do nothing.
	}
	System.out.println(result); // Prints default result.
    }
}