Java section 50th, the exception chain in Java

2016-06-30

1 Abnormal chain
Two or more different exceptions appear in the same program, and nested throws occur, which we call the exception chain.

 Packagecom.java1995;/*** Abnormal chain *@authorAdministrator **/ Public classExceptionchaintest { Public Static voidMain (string[] args) {Calculator C=NewCalculator (); Try{C.chufa (1, 0); }Catch(numbercalculateexception e) {e.printstacktrace (); System.out.println ("Cause of error" +e);    }; }}classcalculator{/*** Division *@return     * @throwsnumbercalculateexception*/     Public intChufa (intIintJthrowsnumbercalculateexception{if(j==0) {numbercalculateexception e=NewNumbercalculateexception ("Calculation Error"); Negativenumberexception E1=NewNegativenumberexception ("Divisor cannot be 0");            E.initcause (E1); Throwe; }        return0; };}classNegativenumberexceptionextendsException { Publicnegativenumberexception (String msg) {Super(msg); }}classNumbercalculateexceptionextendsException { Publicnumbercalculateexception (String msg) {Super(msg); }}

Resources

[1] Java Easy Start Classic tutorial "full version"

Java section 50th, the exception chain in Java