Exception Handling - Objective C

Exception handling is made available in Objective C with foundation class NSException.

Exception handling is implemented with the following blocks:

• @try - This blocks tries to execute a set of statements.
• @catch  - This block tries to catch the exception in try block.
• @finally - This block contains set of statements that always execute.

#import <Foundation/Foundation.h>
int main()
{
          NSMutableArray *arrobj = [[NSMutableArray alloc] init];

          @try

           {

                       NSString *strobj = [arrobj objectAtIndex : 10];

            } 

           @catch (NSException *exception)

            {

                   NSLog(@"%@", exception . name);

                   NSLog(@"Reason : %@", exception . Reason);

            }

           @finally

           {

                    NSLog(@"@@finaly Always Executes");

            }

           return 0;}

 In the above program, instead of the program terminating due to the exception , it contains with the subsequent program since we have used exception handling.