It's simple, you will definitely throw an exception, but you can catch it without stopping the program because of the exception. Use the try cathy statement

like this

Try {

integer a = integer . parse int(str)；

}

Catch (exception e)

System.out.println ("String conversion to integer failed");

}

After throwing an exception, if you want to handle other logic, you can write the logic in the catch statement block.

I hope I can help you, thank you