StackOverflow2013

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2013-02-24T09:30:12.053
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2013-02-24T09:39:10.367
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2013-02-24T09:39:10.367
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I suppose that dynamic exception checking is just another name of firing exceptions at run-time. Although I believe in static exception checking, Java way of static exception checking really has problems that concern interface implementations. Say, we have <code>IParser</code>. What appropriate exceptions its method <code>parse()</code> may throw? Possibly <code>SyntaxErrorException</code>. Now we want a <code>ServerResponseParserFromURL</code> to be used in such a way: <pre><code>class ServerResponseParserFromURL implements IParser { .... }; .... try { IParser parser = new ServerResponseParser(new URL("http://example.com/test.htm")); parser.parse(); .... } </code></pre> Here is the problem — the implementation of <code>IParser</code> may fire, say, <code>NoRouteToHostException</code>. So we can not use nice and concise form and need to fallback to long form: <pre><code>class ServerResponseParser implements IParser { .... }; .... try { String response = getServerResponse(new URL("http://example.com/test.htm")); IParser parser = new ServerResponseParser(response); parser.parse(); .... } </code></pre> As you see, in practice, our <code>IParser</code> is <code>IStringParser</code>, not the generic <code>IParser</code>. Although it may be tolerable in this particular case, it complicates things when we want to supply an <code>IParser</code> as one of arguments of a function <code>f</code>. Say, to be able to parse response of url-identified server, we can not just feed <code>ServerResponseParser</code> object and url — we need to find a way to feed <code>getServerResponse</code> method to <code>f</code>.
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1. POWhat is static exception checking and dynamic exception checking?
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