Your try-catch does not do anything different;never catch the unchecked exception-handling including the nullpointerexception

Catch an exception-handling only if you know how you can usefully continue even knowing that some previous step failed - and very often you can t so surrounding only top-level actions with try-catch there logging the exception-handling to some log file and informing the user often is the best thing you can do

Try-catch rsources is fine for some cases but this is the old way and works better when you have more than 1 exception-handling in a block

We are very familiar with try-catch blocks that we can wrap over a set of code and if an exception-handling occurs then it will handle this exception-handling

Will hide the exception-handling and since dealing with exception-handling is heavier compared to a simple if t why isn t the normal new t not considered less good practice considering we will have to use try-catch to check if a simple allocation succeeded and if we don t just watch the program die

So here the unchecked exception-handling is better to use in order not to copy and paste all that ugly try-catch block rethrowing an exception-handling and add the throws clause to the method

When you call input.nextline as part of your exception-handling catching is it better to place it into every catch block or just inside a finally block at the end of the try-catch

Avoiding that with try-catch is probably better;exception-handling are fine for catching errors such as badly formed input when it s expected that input normally is valid

For that you ll have to use try-catch within using block;if the exception-handling is not caught you will see an exception-handling raised by the ide with the message an unhandled exception-handling of type system.exception occurred in the catch block

In this case the try-catch version is not too bad but you still have to know which type of exception-handling is thrown and in which case;also in real-world code having a lot of try-catch statements makes code harder to follow

In general try-catch is more robust does not require you to define an exact position of where to test could be a block and provides info about the exception-handling

Yi rather than using try-catch in this way you should just use dispose instead - under the covers it does the same thing but the result is cleaner and easier to read;you should avoid catching swallwoing exception-handling too - if the above throws an exception-handling it is better if the caller handles the caller

If you re planning on wrapping your code in a try-catch block with an exception-handling of nullreferenceexception then you should have something in place to handle this type of exception-handling and perform any necessary operations related to this error;that being said in situations where you know you may have the possibility of having an error which would throw an exception-handling it is better to check for this situation -- and not throw an error at all but gracefully handle it

Try-catch is not the expensive part;throwing the exception-handling is generating the stacktrace

In a normal situation try-catch should not be that expensive performance wise as discussed in this thread do try catch blocks hurt performance when exception-handling are not thrown;however throwing and handling an exception-handling is usually a relatively expensive operation

If it s only in a job it s ok but if you plan to manage records in other points we warned that if you use nested try-catch blocks the control will go to the outermost try-catch block avoiding internal ones;well there are two or three exception-handling that aren t check programming manual i don t remeber them now they were related to ddbb record blocking and so on

Try-catch is actually slower if there really is an exception-handling thrown