1
00:00:00,440 --> 00:00:02,930
More often than not, you're going to get bugs.

2
00:00:03,140 --> 00:00:08,450
So it helps to visualize the runtime using breakpoints in this lesson, you're going to learn how to

3
00:00:08,450 --> 00:00:09,590
use breakpoints.

4
00:00:11,820 --> 00:00:16,860
You can access this lesson from the resources if your resources don't include the following path, then

5
00:00:16,860 --> 00:00:19,800
please download the updated resources from GitHub.

6
00:00:27,100 --> 00:00:31,840
All right, inside the breakpoints class, we can start a debugging session to visualize the output

7
00:00:31,840 --> 00:00:33,430
of each variable line by line.

8
00:00:34,240 --> 00:00:37,150
So in this code, click the run and debug option.

9
00:00:39,230 --> 00:00:44,750
And click on credit lines that Jason file, and here you can see the current file that we can launch

10
00:00:44,750 --> 00:00:49,100
the debugger for, it's the file that corresponds to the breakpoints class.

11
00:00:49,520 --> 00:00:52,550
Not that important, just showing you what's going on behind the scenes.

12
00:00:53,270 --> 00:00:59,150
But what we want to do is we're going to place a breakpoint next to each line of code when we launch

13
00:00:59,160 --> 00:01:00,420
the debugger for this file.

14
00:01:00,560 --> 00:01:05,269
What it's going to do is it's going to stop at each break point and allow us to visualize the output

15
00:01:05,269 --> 00:01:06,230
for that line.

16
00:01:06,740 --> 00:01:11,690
Essentially, it's going to allow us to visualize the run time line by line, kind of like the animations

17
00:01:11,690 --> 00:01:16,070
I've been showing you throughout the course, except now we can do it in voice code, which is really

18
00:01:16,070 --> 00:01:16,370
cool.

19
00:01:17,150 --> 00:01:19,490
So without further ado, click launch.

20
00:01:19,490 --> 00:01:20,240
Current file.

21
00:01:29,030 --> 00:01:31,640
Press continue to stop at each breakpoint.

22
00:01:35,530 --> 00:01:41,040
And here in the left pane, you can visualize the output of each variable and long double boolean car

23
00:01:41,040 --> 00:01:45,310
are primitive types and notice that each primitive store is a value.

24
00:01:46,700 --> 00:01:51,260
And once you get to the last break point, if you press continue, it's just going to disappear because

25
00:01:51,270 --> 00:01:52,720
debugging session is over.

26
00:01:53,300 --> 00:01:54,650
So let's restart the session.

27
00:02:01,170 --> 00:02:02,220
Go to the last line.

28
00:02:07,710 --> 00:02:12,120
And a small little trick for you is to step over at the last line if you want to see it.

29
00:02:16,720 --> 00:02:21,250
Now, string is a class type, you can see that the string variable contains an object with a bunch

30
00:02:21,250 --> 00:02:21,880
of fields'.

31
00:02:22,850 --> 00:02:27,570
One of the fields is an array that contains the ASCII representation of each character.

32
00:02:28,040 --> 00:02:33,590
So what you would see is hello, but what's actually being stored is one hundred and four one two one

33
00:02:33,620 --> 00:02:33,920
one.

34
00:02:33,920 --> 00:02:34,400
Oh, wait.

35
00:02:34,730 --> 00:02:37,390
Where each one corresponds to a character.

36
00:02:38,320 --> 00:02:39,890
Again, this isn't that important.

37
00:02:39,910 --> 00:02:44,350
It's just really cool that this code allows us to see exactly how each variable behaves.

38
00:02:51,190 --> 00:02:54,070
In this lesson, you learn to visualize the output of a variable.

39
00:02:55,290 --> 00:03:01,080
You visualized five primitives, each one stores of value, and you visualize the class type variable

40
00:03:01,080 --> 00:03:02,640
which contains an object.