onlinepadhai.com » Uncategorized http://www.onlinepadhai.com Thu, 20 Jan 2011 10:38:03 +0000 en hourly 1 http://wordpress.org/?v=3.1 What is the difference throw and throws? http://www.onlinepadhai.com/what-is-the-difference-throw-and-throws http://www.onlinepadhai.com/what-is-the-difference-throw-and-throws#comments Thu, 26 Nov 2009 12:17:08 +0000 http://onlinepadhai.com/?p=800 throws: Used in a method’s signature if a method is capable of causing an exception that it does not handle, so that callers of the method can guard themselves against that exception. If a method is declared as throwing a particular class of exceptions, then any other method that calls it must either have a try-catch clause to handle that exception or must be declared to throw that exception (or its superclass) itself.

A method that does not handle an exception it throws has to announce this:

public void myfunc(int arg) throws MyException {
        …
    }

throw: Used to trigger an exception. The exception will be caught by the nearest try-catch clause that can catch that type of exception. The flow of execution stops immediately after the throw statement; any subsequent statements are not executed.

To throw an user-defined exception within a block, we use the throw command:

throw new MyException(“I always wanted to throw an exception!”);

]]> http://www.onlinepadhai.com/what-is-the-difference-throw-and-throws/feed 0 What are the different types of JSP tags? http://www.onlinepadhai.com/what-are-the-different-types-of-jsp-tags http://www.onlinepadhai.com/what-are-the-different-types-of-jsp-tags#comments Thu, 26 Nov 2009 12:15:20 +0000 http://onlinepadhai.com/?p=910 The different types of JSP tags are as follows:

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