1
00:00:00,270 --> 00:00:05,400
In the solution of inequality, control the item class, and so starting with the constructor, the

2
00:00:05,400 --> 00:00:08,150
color shouldn't be allowed to pass anything that is blank.

3
00:00:08,520 --> 00:00:11,370
So if the name is null or if it's blank.

4
00:00:16,740 --> 00:00:19,350
Well, throw a new legal argument exception.

5
00:00:21,960 --> 00:00:23,820
Name cannot be no blank.

6
00:00:27,800 --> 00:00:31,220
The caller also shouldn't be allowed to pass in a price that's less than zero.

7
00:00:34,850 --> 00:00:38,000
In such a case, we'll throw a new illegal argument exception.

8
00:00:42,560 --> 00:00:44,510
Price cannot be less than zero.

9
00:00:52,140 --> 00:00:57,240
And now we need to quality control our methods, starting with a name the caller should not be allowed

10
00:00:57,240 --> 00:01:01,020
to update an object with a name that is no or blank.

11
00:01:07,510 --> 00:01:10,570
In which case, through a new legal argument, exception.

12
00:01:21,220 --> 00:01:23,720
And do the same thing inside set price.

13
00:01:23,750 --> 00:01:27,010
Well, throw an exception if the price they pass then is less than zero.

14
00:01:43,660 --> 00:01:45,750
And that's really it for quality control.

15
00:01:47,510 --> 00:01:53,030
If the caller misuses our methods or constructor, they're going to throw an exception and force them

16
00:01:53,030 --> 00:01:54,230
to improve their code.