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anybody know what's wrong with my code start from this part:

if (roomNumber == 1){
if (HouseA1[roomNumber-1] < 2) {
HouseA1 [roomNumber-1] += 1;


why i can't book a room again in the that...

i run it on NetBean, and this the error:

Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 0
at java.lang.String.charAt(String.java:658)
at...

I got this error :

at java.lang.String.charAt(String.java:658)
at University_Apartment.main(University_Apartment.java:54)
Java Result: 1

when I choose the house number in my program.....

I have no idea what's the mistake,
Its say illegal start of expression & while expected at the end of the code..

Any help will be much appreciated.. :)





import java.text.*;