java例程练习（自定义异常处理）

public class Test { public void regist(int num) throws MyException { if(num < 0) { throw new MyException("人数为负值，不合理", 3); } System.out.println("登记人数" + num); } public void manager(int k) { try { regist(k); } catch(MyException me) { System.out.println("登记出错，出错类型：" + me.getId()); me.printStackTrace(); } System.out.println("操作结束"); } public static void main(String[] args) { Test t = new Test(); t.manager(-1); t.manager(100); } } class MyException extends Exception { private int id; public MyException(String message, int id) { super(message); this.id = id; } public int getId() { return id; } }