清华大学：JAVA教学课件：6-3

class MyException extends Exception {
private int detail;
MyException (int a) {
detail = a;
}
public String toString() {
return "MyException[ "+ detail + " ] ";
}
}
class ExceptionDemo {
static void compute (int a )throws MyException {
System.out.println("Called compute (" + a + ".");
if (a>10) throw new MyException (a);
System.out.println("Normal exit");
}
public static void main(String args[]) {
try {
compute(1);
compute(20);
}catch (MyException e) {
System.out.println("Exception caught" + e);
}
}
}