Exception Handling in Java

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The finally block A finally block is where you put code that must run regardless of an exception. try { // Dangerous activities that might throw A or B } catch(A a1) { // Handler for situation A} catch(B b1) { // Handler for situation B} finally { // Activities that happen every time } The finally block is a key tool for preventing resource leaks. When closing a file or otherwise recovering resources, place the code in a finally block to insure that resource is always recovered. 6
Declaring that a method throws exceptions • The keyword throws indicates that a method can throw an exception that it does not handle. This declaration does permit another method to handle the exception. • All Java methods use the throw statement to throw an exception. The throw statement requires a single argument: a throwable object. 7
Page 1 and 2: Exception Handling in Java An excep
Page 3 and 4: Exception: Handle Where It Occurs E
Page 5: public class ProductCodes{ // Count
Page 9 and 10: Exceptions are polymorphic You can
Page 11 and 12: Write a different catch block for e
Page 13 and 14: Inner try blocks You can have inner
Page 15 and 16: Rethrowing an exception If a catch
Page 17 and 18: Exercises: class ExceptionFunction
Page 19 and 20: Why Finally? A Finally block will b
Page 21 and 22: What will be the output of compilin
Page 23 and 24: Ex1. int main () { try { throw 20;
Page 25 and 26: A try block could be in a function.

Exception Handling in Java

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