This link has been bookmarked by 9 people . It was first bookmarked on 08 Apr 2008, by Reder Tseng.
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06 Jul 09
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The runtime system searches the call stack for a method that contains a block of code that can handle the exception. This block of code is called an exception handler. The search begins with the method in which the error occurred and proceeds through the call stack in the reverse order in which the methods were called. When an appropriate handler is found, the runtime system passes the exception to the handler. An exception handler is considered appropriate if the type of the exception object thrown matches the type that can be handled by the handler.
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The exception handler chosen is said to catch the exception. If the runtime system exhaustively searches all the methods on the call stack without finding an appropriate exception handler, as shown in the next figure, the runtime system (and, consequently, the program) terminates.
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02 Apr 09
KalyaniAn exception is an event, which occurs during the execution of a program, that disrupts the normal flow of the program's instructions.
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An exception is an event, which occurs during the execution of a program, that disrupts the normal flow of the program's instructions.
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The object, called an exception object, contains information about the error, including its type and the state of the program when the error occurred. Creating an exception object and handing it to the runtime system is called throwing an exception.
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The set of possible "somethings" to handle the exception is the ordered list of methods that had been called to get to the method where the error occurred. The list of methods is known as the call stack
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This block of code is called an exception handler
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An exception handler is considered appropriate if the type of the exception object thrown matches the type that can be handled by the handler.
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catch the exception
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03 Feb 09
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An exception is an event, which occurs during the execution of a program, that disrupts the normal flow of the program's instructions.
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When an error occurs within a method, the method creates an object and hands it off to the runtime system. The object, called an exception object, contains information about the error, including its type and the state of the program when the error occurred. Creating an exception object and handing it to the runtime system is called throwing an exception.
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After a method throws an exception, the runtime system attempts to find something to handle it. The set of possible "somethings" to handle the exception is the ordered list of methods that had been called to get to the method where the error occurred. The list of methods is known as the call stack
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25 Sep 08
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Creating an exception object and handing it to the runtime system is called throwing an exception.
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The runtime system searches the call stack for a method that contains a block of code that can handle the exception. This block of code is called an exception handle
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An exception handler is considered appropriate if the type of the exception object thrown matches the type that can be handled by the handler.
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The exception handler chosen is said to catch the exception
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03 Sep 08
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exceptional event.
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An exception is an event, which occurs during the execution of a program, that disrupts the normal flow of the program's instructions.
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error occurs within a method
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exception object
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exception object
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attempts to find something to handle it
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ordered list of methods that had been called to get to the method where the error occurred
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The call stack.
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a block of code that can handle the exception
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proceeds through the call stack in the reverse order
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exception handler
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the runtime system passes the exception to the handler. An exception handler is considered appropriate if the type of the exception object thrown matches the type that can be handled by the handler
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catch the exception.
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11 Dec 07
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