Exception Handling - Revision history

Tungocman: /* Exception Handling (Error Runtime Handling) */

2012-02-22T10:25:50Z

Exception Handling (Error Runtime Handling)

← Older revision		Revision as of 10:25, 22 February 2012
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	[[category:Program Control Statements]]		[[category:Program Control Statements]]
	__NOTOC__		__NOTOC__
			In programming, the exceptions are:
			* Errors: Errors that occur in the runtime (excution) of program and make your program failed.(E.g: Using a variable wihout declare it, Assigning wrong data type to a variable...)
			* Non-expected things: Things that the coder of program dont expect to happen in the runtime (excution) of program. (E.g: Passing wrong number of input parameters, passing wrong type of input parameters...) In this situtation, the coder will try to catch them and then process them

			The exceptions that thrown by system are called system-thrown exceptions.
			The exceptions that thrown by users are called user-thrown exceptions

	An exception is an error occurs in the runtime (the excution) of program. The CGScript language uses the '''try/catch statement''' and the '''throw''' expression to implement exception handling.		An exception is an error occurs in the runtime (the excution) of program. The CGScript language uses the '''try/catch statement''' and the '''throw''' expression to implement exception handling.

2012-02-22T10:21:40Z

try-catch statement

← Older revision		Revision as of 10:21, 22 February 2012
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	=== try-catch statement ===		=== try-catch statement ===
	<pre>		<pre>
	exception ~~declaration~~		object exception; // declare the variable "exeption"
	// you must declare your exception variable before using it the try catch statement		// you must declare your exception variable before using it the try catch statement
	// And the data type of this exception variable should be an object type (E.g. object e;) so that it can catch any kind of objects thrown by system or users		// And the data type of this exception variable should be an object type (E.g. object e;) so that it can catch any kind of objects thrown by system or users

2011-12-20T06:22:37Z

Exception Handling (Error Runtime Handling)

← Older revision		Revision as of 06:22, 20 December 2011
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	__NOTOC__		__NOTOC__

	An exception is an error occurs in the runtime (the excution) of program. The CGScript language uses the '''try/catch statement''' and the '''throw''' expression to implement ~~the~~ exception handling.		An exception is an error occurs in the runtime (the excution) of program. The CGScript language uses the '''try/catch statement''' and the '''throw''' expression to implement exception handling.

	=== <span style="color:#DF8621;">'''Syntax'''</span> ===		=== <span style="color:#DF8621;">'''Syntax'''</span> ===

2011-12-20T05:58:38Z

try-catch statement

← Older revision		Revision as of 05:58, 20 December 2011
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	exception declaration		exception declaration
	// you must declare your exception variable before using it the try catch statement		// you must declare your exception variable before using it the try catch statement
	// And the data type of this exception variable should be an object type (E.g. object e;) so that it can catch any kind of ~~object~~ thrown by system or users		// And the data type of this exception variable should be an object type (E.g. object e;) so that it can catch any kind of objects thrown by system or users
	try {		try {
	// codes that could throw an exception		// codes that could throw an exception

2011-12-20T05:57:14Z

try-catch statement

← Older revision		Revision as of 05:57, 20 December 2011
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	=== try-catch statement ===		=== try-catch statement ===
	<pre>		<pre>
	exception declaration // you must declare your exception variable before using it the try catch statement		exception declaration
			// you must declare your exception variable before using it the try catch statement
			// And the data type of this exception variable should be an object type (E.g. object e;) so that it can catch any kind of object thrown by system or users
	try {		try {
	// codes that could throw an exception		// codes that could throw an exception

2011-12-20T05:45:40Z

Examples

← Older revision		Revision as of 05:45, 20 December 2011
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	* [[Exception class]] for more information about the error object of non-users (system) thrown errors.		* [[Exception class]] for more information about the error object of non-users (system) thrown errors.

	== Examples ==		=== <span style="color:#DF8621;">'''Examples'''</span> ===

	<source lang="javascript">		<source lang="javascript">

2011-12-20T05:45:24Z

2011-12-20T05:44:53Z

← Older revision		Revision as of 05:44, 20 December 2011
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	An exception is an error occurs in the runtime (the excution) of program. The CGScript language uses the '''try/catch statement''' and the '''throw''' expression to implement the exception handling.		An exception is an error occurs in the runtime (the excution) of program. The CGScript language uses the '''try/catch statement''' and the '''throw''' expression to implement the exception handling.

	== Syntax ==		=== <span style="color:#DF8621;">'''Syntax'''</span> ===
	=== try-catch statement ===		=== try-catch statement ===
	<pre>		<pre>

2011-12-20T05:31:36Z

← Older revision		Revision as of 05:31, 20 December 2011
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	* If throw is used in catch clause, it will be re-throw. See below examples for information about re-throw.		* If throw is used in catch clause, it will be re-throw. See below examples for information about re-throw.

	== ~~<span style="color:#DF8621;">'''~~See also~~'''</span>~~ ==		== See also ==

	* [[Exception class]] for more information about the error object of non-users (system) thrown errors.		* [[Exception class]] for more information about the error object of non-users (system) thrown errors.

	== ~~<span style="color:#DF8621;">'''~~Examples~~'''</span>~~ ==		== Examples ==

	<source lang="javascript">		<source lang="javascript">

2011-12-20T05:29:49Z

← Older revision		Revision as of 05:29, 20 December 2011
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	== <span style="color:#DF8621;">'''See also'''</span> ==		== <span style="color:#DF8621;">'''See also'''</span> ==

	* [[Exception class]]		* [[Exception class]] for more information about the error object of non-users (system) thrown errors.

	== <span style="color:#DF8621;">'''Examples'''</span> ==		== <span style="color:#DF8621;">'''Examples'''</span> ==