Java.Lang.NullPointerException, but I am not sure why???

Quote:

---

Originally Posted by Junky

Yep but I would move that line upto where you call nextInt to make it clear as to what the code is doing.

---

Would i need to call it multiple times then?

Code:

---

System.out.print("Room number: ");
                                whichRoom = myScanner.nextInt();
                                [B]myScanner.nextLine();[/B]
                                System.out.print("How Many Guests? ");
                                numGuests = myScanner.nextInt();
                                [B]myScanner.nextLine();[/B]
                                guestsIn[whichRoom] = numGuests;                       
                                System.out.print("Do another? ");

---

...or just 1 time:

Code:

---

System.out.print("Room number: ");
                                whichRoom = myScanner.nextInt();
                                System.out.print("How Many Guests? ");
                                numGuests = myScanner.nextInt();
                                [B]myScanner.nextLine();[/B]
                                guestsIn[whichRoom] = numGuests;                       
                                System.out.print("Do another? ");

---

You would only have to clear the buffer after the last call to nextInt. If you type 4<enter>5<enter>, the first call to nextInt would read the 4 and leave <enter>5<enter>. The second call would read the 5, ignore everything in between and leave <enter> in the buffer.

Quote:

---

Originally Posted by Junky

You would only have to clear the buffer after the last call to nextInt. If you type 4<enter>5<enter>, the first call to nextInt would read the 4 and leave <enter>5<enter>. The second call would read the 5, ignore everything in between and leave <enter> in the buffer.

---

AH! That explains it. Thanks so much for your time and to Norm also.

I am just getting into Java, any advice or good resources you like, I'd love to check them out. After the dummies book, I am moving on to Headfirst Java.