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What are Checked and UnChecked Exception?
A checked exception is some subclass of Exception (or Exception itself), excluding class RuntimeException and its subclasses. Making an exception checked forces client programmers to deal with the possibility that the exception will be thrown.
Example: IOException thrown by java.io.FileInputStream's read() method·
Unchecked exceptions are RuntimeException and any of its subclasses. Class Error and its subclasses also are unchecked. With an unchecked exception, though, the compiler doesn't force client programmers either to catch the exception or declare it in a throws clause. In fact, client programmers might not even know that the exception could be thrown.
Example: StringIndexOutOfBoundsException thrown by String's charAt() method· Checked exceptions must be caught at compile time. Runtime exceptions do not require to be. Errors often cannot be.
Sal?s Pizza wants to install a system to record orders for pizza and Buffalo chicken wings. When regular customers call Sal?s Pizza on the phone, they are asked their phone number.
This work assesses the following Outcomes: • Build robust, secure distributed systems using advanced programming techniques Use RMI to build a distributed application accessing
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RMI uses a layered architecture; every of the layers could be increased or replaced without affecting the rest of the system. The details of layers can be summarised as follows:
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Application or website to upload DICOM files from CD to Drop box etc Project Description: I need a website code or application to make patients put a cd or DVD to their disk
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