Java by API/java.lang/Exception

Subclass Exception

/*
 * Output:
 * 
 * caught MyException[10]
 *  
 */
class MyException extends Exception {
  private int detail;
  MyException(int a) {
    detail = a;
  }
  public String toString() {
    return "MyException[" + detail + "]";
  }
}
public class MainClass {
  public static void main(String args[]) throws Exception {
    try {
      throw new MyException(10);
    } catch (MyException e) {
      System.out.println("caught " + e);
    }
  }
}