How to create your own Exception class

[Java Tip]

Code:

class MyException extends Exception {
  public MyException() {
  }

  public MyException(String msg) {
    super(msg);
  }
}

public class FullConstructors {

  public static void f() throws MyException {
    System.out.println("Throwing MyException from f()");
    throw new MyException();
  }

  public static void g() throws MyException {
    System.out.println("Throwing MyException from g()");
    throw new MyException("Originated in g()");
  }

  public static void main(String[] args) {
    try {
      f();
    } catch (MyException e) {
      e.printStackTrace();
    }
    try {
      g();
    } catch (MyException e) {
      e.printStackTrace();
    }
  }
}