Is it necessary that each try block must be followed by a catch block?

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It is not necessary that each try block must be followed by a catch block. It should be followed by either a catch block OR a finally block. And whatever exceptions are likely to be thrown should be declared in the throws clause of the method.

2013-06-03, 3267👍, 0💬

Is it necessary that each try block must be followed by a catch block?
Is it necessary that each try block must be followed by a catch block? It is not necessary that each try block must be followed by a catch block. It should be followed by either a catch block OR a finally block. And whatever exceptions are likely to be thrown should be declared in the throws clause ... 2013-06-03, 3268👍, 0💬

How does Java handle integer overflows and underflows?
How does Java handle integer overflows and underflows? It uses those low order bytes of the result that can fit into the size of the type allowed by the operation. 2013-06-06, 2507👍, 0💬

If I write return at the end of the try block, will the finally block still execute?
If I write return at the end of the try block, will the finally block still execute? Yes even if you write return as the last statement in the try block and no exception occurs, the finally block will execute. The finally block will execute and then the control return. 2013-06-04, 2191👍, 0💬

If my class already extends from some other class what should I do if I want an instance of my class to be thrown as an exceptio
If my class already extends from some other class what should I do if I want an instance of my class to be thrown as an exception object? One can not do anytihng in this scenarion. Because Java does not allow multiple inheritance and does not provide any exception interface as well. 2013-05-30, 2030👍, 0💬

How are Observer and Observable used?
How are Observer and Observable used? Objects that subclass the Observable class maintain a list of observers. When an Observable object is updated it invokes the update() method of each of its observers to notify the observers that it has changed state. The Observer interface is implemented by obje... 2013-06-05, 1883👍, 0💬

What are the different ways to handle exceptions?
What are the different ways to handle exceptions? There are two ways to handle exceptions, 1. By wrapping the desired code in a try block followed by a catch block to catch the exceptions. and 2. List the desired exceptions in the throws clause of the method and let the caller of the method hadle th... 2013-05-31, 1881👍, 0💬

If I want an object of my class to be thrown as an exception object, what should I do?
If I want an object of my class to be thrown as an exception object, what should I do? The class should extend from Exception class. Or you can extend your class from some more precise exception type also. 2013-05-30, 1856👍, 0💬

What is synchronization and why is it important?
What is synchronization and why is it important? With respect to multithreading, synchronization is the capability to control the access of multiple threads to shared resources. Without synchronization, it is possible for one thread to modify a shared object while another thread is in the process of... 2013-06-05, 1852👍, 0💬

What is the basic difference between the 2 approaches to exception handling.
520. What is the basic difference between the 2 approaches to exception handling. 1. try catch block and 2. specifying the candidate exceptions in the throws clause? When should you use which approach? In the first approach as a programmer of the method, you urself are dealing with the exception. Th... 2013-06-03, 1830👍, 0💬

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