Java Basics-Exception-throws exception-throw declaration

Call someone else's program method, and someone else's method declares that there may be an abnormal invocation of the place must have two ways of processing (or ecplise will prompt syntax error): 1, also do the exception declaration, the exception is not handled, received the exception I also thrown out----if there is no other place to receive this exception, Then the exception is received by the JVM, and then call the JVM default exception handling mechanism, abort program 2, the exception is Try-catch preprocessing 1: Make exception declaration

 Public class exceptiontest {                                         //declaration: Exception not handled, received exception I also throw outward

     Public Static voidMain (string[] args)throwsexception{Divdemo DD=NewDivdemo (); intResultd = Dd.div (10, 0); System.out.println ("Resultd ' value is:" +Resultd); System.out.println ("Over!"); }}classdivdemo{//functionally through the throws keyword--//--declaration: Calling this method may cause problems, and may throw out exceptions     Public intDivintAintbthrowsException {returnA/b; }}

: Console:

"Over!" not be printed

2:try--catch processing

 Public classExceptiontest { Public Static voidMain (string[] args) {Divdemo dd=NewDivdemo (); intResultd; Try{Resultd= Dd.div (10, 0); System.out.println ("Resultd ' value is:" +Resultd); } Catch(Exception e) {//TODO auto-generated Catch blockE.printstacktrace (); } System.out.println ("Over!"); }}classdivdemo{//functionally through the throws keyword--//--Declaring a call to this method may cause problems     Public intDivintAintbthrowsException {returnA/b; }}

: Console:

"over!" Printing, program completion

Java Basics-Exception-throws exception-throw declaration