1.首先自定义异常 DataException: package com.wbg.maven1128.exception; public class DataException extends Exception { public DataException(){ } public DataException(String msg){ super(msg); } } DbException: package com.wbg.maven1128.exception; public class Db
http://blog.csdn.net/hguisu/article/details/6155636 补充:检查异常(checkedException)与运行异常,什么时候throw,什么时候throws,什么时候trycatch的探索. Demo1:testException方法中throw的是RuntimeException package com.westward; public class Demo12 { public static void main(String[] args)