1
00:00:00,680 --> 00:00:05,800
Now let's get started with manipulating several elements in our array here.

2
00:00:05,810 --> 00:00:09,440
So in order to manipulate it, we need to get an index number.

3
00:00:09,440 --> 00:00:15,740
So array two here in this case, array two, the second index is eight seven.

4
00:00:16,130 --> 00:00:22,130
As you can see here, we will make the index of 2 to 50 here.

5
00:00:22,340 --> 00:00:26,300
And also we will also make the.

6
00:00:27,180 --> 00:00:28,950
We will also see that the third array.

7
00:00:29,310 --> 00:00:30,720
So my array.

8
00:00:31,530 --> 00:00:33,270
Uh, the third.

9
00:00:33,660 --> 00:00:35,070
And here, let's make it.

10
00:00:37,470 --> 00:00:38,100
70?

11
00:00:38,140 --> 00:00:38,360
Yes.

12
00:00:38,430 --> 00:00:40,410
75 or 73.

13
00:00:42,130 --> 00:00:43,450
And now.

14
00:00:44,380 --> 00:00:50,800
What we will doing here is that we are deleting here.

15
00:00:53,480 --> 00:01:00,620
And actually after that, let's actually create our code again, write it like that here, see out the

16
00:01:00,620 --> 00:01:02,060
new array elements.

17
00:01:03,230 --> 00:01:05,480
New array elements.

18
00:01:05,510 --> 00:01:06,590
Elements here.

19
00:01:06,590 --> 00:01:08,570
And it's going to be the.

20
00:01:09,240 --> 00:01:10,530
And line.

21
00:01:11,280 --> 00:01:14,280
And we will do we will write the same code.

22
00:01:14,310 --> 00:01:15,330
Again here.

23
00:01:15,330 --> 00:01:19,950
So we will compare this, uh, this race here.

24
00:01:19,950 --> 00:01:21,660
So we will compare.

25
00:01:22,290 --> 00:01:26,850
Uh, the result and output differences between these codes.

26
00:01:26,850 --> 00:01:28,260
So, uh, after manipulating.

27
00:01:28,290 --> 00:01:30,990
Of course, here, after manipulating our code.

28
00:01:31,380 --> 00:01:34,020
So now we're going to here.

29
00:01:39,830 --> 00:01:41,120
So now we're going to.

30
00:01:43,790 --> 00:01:45,170
Paste this code here again.

31
00:01:45,170 --> 00:01:47,810
So these are this is the same output.

32
00:01:49,790 --> 00:01:50,360
Here.

33
00:01:50,480 --> 00:01:51,890
This is the same output.

34
00:01:52,130 --> 00:01:57,070
And here, actually, before running, let's actually let me explain this.

35
00:01:57,080 --> 00:02:04,520
So this code we see that initializing an array is simple and this is the dome by defining the array

36
00:02:04,520 --> 00:02:05,210
data type.

37
00:02:05,210 --> 00:02:09,440
So the arrays name here, race name.

38
00:02:10,300 --> 00:02:11,050
Follow it.

39
00:02:12,310 --> 00:02:16,610
By a couple of score bracelets here.

40
00:02:16,630 --> 00:02:23,240
And as you can see here in this case, it's this the couple of square braces here.

41
00:02:23,260 --> 00:02:26,350
So let's actually let me write it again.

42
00:02:26,350 --> 00:02:33,550
And as you can see here, uh, initializing array is simple and defining the array type is more simpler

43
00:02:33,550 --> 00:02:33,970
here.

44
00:02:33,970 --> 00:02:40,480
So we need in order to access these arrays, we just need to use the array types here.

45
00:02:40,810 --> 00:02:49,630
Let me actually use the width narrower here and a bit narrower to here, so.

46
00:02:50,750 --> 00:02:51,530
So.

47
00:02:52,380 --> 00:02:53,250
In this code.

48
00:02:53,280 --> 00:02:58,050
Our array name is my array that we created here.

49
00:02:58,080 --> 00:02:59,160
My array.

50
00:03:00,220 --> 00:03:09,250
So we can access each element by using its index here, the three, two and etcetera.

51
00:03:10,670 --> 00:03:16,430
So in the code we print each element by iterating.

52
00:03:17,970 --> 00:03:25,950
By iterating and accessing the element value using the array and E here.

53
00:03:25,950 --> 00:03:28,020
So E is incrementing.

54
00:03:28,020 --> 00:03:36,300
So it starts from zero and the second loop goes one, two, three, four.

55
00:03:36,300 --> 00:03:45,240
And after being e being four, we are checking that the size of array is no size of E is no longer less

56
00:03:45,240 --> 00:03:47,840
than our array size.

57
00:03:47,850 --> 00:03:51,210
Then after that we are breaking the loop.

58
00:03:51,210 --> 00:03:57,990
So you learned about loops in previous lectures, so I will not return to the loops again.

59
00:03:58,860 --> 00:04:06,060
But if you don't remember the loops well you can check the previous lectures here and then come again

60
00:04:06,060 --> 00:04:06,720
here.

61
00:04:07,770 --> 00:04:12,270
So let's continue our array here.

62
00:04:15,230 --> 00:04:18,320
So actually, let's delete this using the rubber.

63
00:04:19,320 --> 00:04:21,900
Here now.

64
00:04:24,450 --> 00:04:31,440
Uh, we also manipulate the value of indexes the two and three by using.

65
00:04:31,440 --> 00:04:32,130
Actually, it's.

66
00:04:32,190 --> 00:04:40,230
Yeah, we are manipulating the value of indexes by using the two and three here, as you can see here.

67
00:04:40,350 --> 00:04:44,820
So we are assigning 2 to 50.

68
00:04:44,820 --> 00:04:52,050
So the second index, second index goes to 50 here and actually see that.

69
00:04:52,080 --> 00:04:54,030
So second index here.

70
00:04:54,120 --> 00:04:56,670
The second thing, what's the second index here?

71
00:04:56,700 --> 00:04:57,600
87.

72
00:04:57,600 --> 00:05:02,250
So 87 the index to new value is going to be.

73
00:05:03,780 --> 00:05:04,290
What?

74
00:05:04,290 --> 00:05:05,940
The 50 here?

75
00:05:05,940 --> 00:05:06,630
50.

76
00:05:08,360 --> 00:05:10,680
The new value is 50.

77
00:05:10,700 --> 00:05:14,420
And also we are assigning index 3 to 7.

78
00:05:14,450 --> 00:05:16,480
Actually, it's not like that.

79
00:05:16,490 --> 00:05:24,010
It's it's like here we are assigning 50 to index two, we are assigning 73 to index three.

80
00:05:24,020 --> 00:05:27,470
So in this case it's going to be the index.

81
00:05:27,470 --> 00:05:28,250
Two is going to be.

82
00:05:30,060 --> 00:05:30,840
Here.

83
00:05:31,440 --> 00:05:33,870
Index two is going to be 50.

84
00:05:34,590 --> 00:05:36,690
So this is the new value index.

85
00:05:36,690 --> 00:05:42,660
Two is going to be 50 and index three is going to be.

86
00:05:43,750 --> 00:05:51,340
73 here and index three is going to be 73.

87
00:05:52,450 --> 00:05:54,760
73.

88
00:05:56,970 --> 00:05:57,660
Here.

89
00:05:58,530 --> 00:06:03,750
So, uh, the if a build and run this application, let's, uh.

90
00:06:03,750 --> 00:06:08,670
So this was our previous compilation and the result.

91
00:06:09,360 --> 00:06:10,740
Let's use the earth.

92
00:06:10,770 --> 00:06:12,030
All of this here.

93
00:06:14,630 --> 00:06:17,990
And here, let's run it again.

94
00:06:18,470 --> 00:06:21,230
Compile it again and run it again here.

95
00:06:21,230 --> 00:06:22,940
And as you can see here.

96
00:06:23,680 --> 00:06:25,720
The first element goes like this.

97
00:06:25,930 --> 00:06:26,740
25.

98
00:06:26,770 --> 00:06:27,700
21.

99
00:06:27,730 --> 00:06:28,210
Yes.

100
00:06:28,240 --> 00:06:28,870
Is 21.

101
00:06:28,870 --> 00:06:30,820
We didn't do anything to 21.

102
00:06:30,850 --> 00:06:34,960
The first zero index we have the.

103
00:06:36,260 --> 00:06:41,270
Actually, yeah, we have this 47 and as you can see, it goes the usual.

104
00:06:41,300 --> 00:06:51,950
The was the same with the 21, 20 and 47, 21, 47 And here we also have 87.

105
00:06:52,160 --> 00:06:53,720
This was the previous ones here.

106
00:06:53,720 --> 00:06:55,610
So these are all the same.

107
00:06:58,390 --> 00:06:59,470
This is all the same.

108
00:06:59,470 --> 00:07:05,140
And as you can see here, after that, 87 here is changing.

109
00:07:05,410 --> 00:07:09,670
We are manipulating, uh, the index, uh, the value of our array.

110
00:07:09,670 --> 00:07:12,820
And as you can see, it is seven goes the.

111
00:07:14,610 --> 00:07:15,720
250.

112
00:07:15,750 --> 00:07:19,410
And as you can see here, the new value is 50.

113
00:07:20,460 --> 00:07:21,300
So we don't need that.

114
00:07:21,510 --> 00:07:28,770
And the 6969 here changed its value to 73.

115
00:07:28,770 --> 00:07:32,310
And as you can see here, it's 50 and 73.

116
00:07:32,310 --> 00:07:38,790
And about the 35 here, it's the same again.

117
00:07:38,880 --> 00:07:41,760
So there's an interesting fact about arrays here.

118
00:07:41,760 --> 00:07:45,180
So we can access the arrays element using a pointer.

119
00:07:45,180 --> 00:07:51,210
So as you may know, a pointer is a variable that holds the address instead of the value.

120
00:07:52,000 --> 00:07:52,630
So.

121
00:07:52,630 --> 00:07:59,590
And since we have, uh, learned earlier that each element in array has its own address, as you can

122
00:07:59,590 --> 00:08:00,550
see here.

123
00:08:01,450 --> 00:08:05,500
Uh, we can access each element, each arrays element using its address.

124
00:08:05,650 --> 00:08:10,510
So we can also use the pointer to, uh, as an array.

125
00:08:10,510 --> 00:08:15,280
So we'll, you will learn this in next lecture.

126
00:08:15,280 --> 00:08:15,990
So I'm waiting you in.

127
00:08:16,010 --> 00:08:16,510
Next lecture.