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Java Java Objects Harnessing the Power of Objects Exceptions

Posted by luis cantu
luis cantu
927 Points

If I use System.Out.Println in the try and catch block the execution fails, Why has to use Println and then Printf ?

I could complete this excercise,but I wanted to know what happens if I use Println on booth sentences I did... and the execution fails. Then I changed the second sentence to printf as the video shows and the execution pass. Whis this happens?

2 Answers

Aamir Mirza
Aamir Mirza
25,077 Points
Aamir Mirza
Aamir Mirza
25,077 Points

This is an old question, but I ran into the same problem.

The f in printf stands for "format", that's why you can pass in strings with %s, %d etc. and format them to include strings, integers and so on.

println on the other hand does not format strings, and only takes in one argument, that's why it throws an exception.

Trent Christofferson
Trent Christofferson
18,846 Points
Trent Christofferson
Trent Christofferson
18,846 Points

It should be typed in all lower case except for 'System'. It should be the same casing as printf. Also an example of how to get the same result using printf and println: System.out.println("My name is " + name); vs System.out.printf("My name is %s", name);