1
00:00:00,900 --> 00:00:06,420
Heidi rings at the heart once again welcome to the next More deal of discourse of Cartland programming.

2
00:00:06,540 --> 00:00:10,150
Now in this morning we talk about collections in Cartland.

3
00:00:10,590 --> 00:00:14,820
So first of all what other topics are covered in this mondial.

4
00:00:14,820 --> 00:00:21,000
So firstly I will show you Vawter collections by simply using the examples of addy's in Scotland.

5
00:00:21,270 --> 00:00:25,190
Now the areas in Scotland are actually mutable in nature.

6
00:00:25,230 --> 00:00:27,290
Bert has fixed size.

7
00:00:27,330 --> 00:00:32,500
Now if you are from Java background then you must be doing Vardis areas transform.

8
00:00:32,610 --> 00:00:38,120
It is simply the collection of elements that is integer strings and so on.

9
00:00:38,250 --> 00:00:43,570
Such as add a string of endangered Arey offload and so on.

10
00:00:43,620 --> 00:00:46,660
So we will check out is addy and vord business.

11
00:00:46,680 --> 00:00:48,100
New table stands for.

12
00:00:48,300 --> 00:00:55,110
And why do we see that Addie has fixed size now proceeding forward we will check out the actual collections

13
00:00:55,110 --> 00:01:01,670
in Cartland such as immutable collections and also the mutable collections.

14
00:01:01,710 --> 00:01:04,730
Right now if you notice there are two sections here.

15
00:01:04,770 --> 00:01:11,700
The immutable collection and mutable collection you can note is immutable collection are actually READ

16
00:01:11,760 --> 00:01:18,590
ONLY that is once you define the collection that is the Adye or list or map or set.

17
00:01:18,690 --> 00:01:28,010
We can only read data from that collection but the mutable collection supports both read and write operation.

18
00:01:28,110 --> 00:01:35,380
That is once we define our collection such as a list or map or sets we can read and write both.

19
00:01:35,440 --> 00:01:40,520
That is we can modify the list or the collection in future as well.

20
00:01:40,840 --> 00:01:48,850
So similarly the area is actually mutable in nature that is we can modify our era in future as well.

21
00:01:49,050 --> 00:01:54,840
So in this video just for the introduction I will show you vort is an addy and how can we define the

22
00:01:54,840 --> 00:01:56,330
addy in Carter-Long.

23
00:01:56,370 --> 00:02:01,890
So if you understand the concept of adding in this video then from the next value onwards you won't

24
00:02:01,890 --> 00:02:04,610
face any difficulty to understand the list.

25
00:02:04,660 --> 00:02:08,220
Map and sets both immutable and mutable.

26
00:02:08,220 --> 00:02:12,660
So let's check out the area inside the intelligence ID.

27
00:02:12,700 --> 00:02:16,510
So here insert the intelligent ID just to do find the ID.

28
00:02:16,540 --> 00:02:18,440
The syntax is like this.

29
00:02:18,550 --> 00:02:23,250
So that or they'll let us find the name as my addy.

30
00:02:23,290 --> 00:02:30,450
As of now equal to let's see Adie now expects a complete darkness.

31
00:02:30,490 --> 00:02:33,020
That type of added that you want to create.

32
00:02:33,340 --> 00:02:40,130
So as of now I want to create the integer empty the added that will hold only the bigger value.

33
00:02:40,330 --> 00:02:44,620
So as we go to defining the empty object that is my ID.

34
00:02:44,740 --> 00:02:50,920
You have to define the size of the Attie that is the number of elements that this adic and contain are

35
00:02:50,920 --> 00:02:53,600
the integer values that it can contain.

36
00:02:53,650 --> 00:02:56,410
So as of now I will simply give five.

37
00:02:56,610 --> 00:03:04,120
Now proceeding forward give it a space and here expects the second parameter as a lambda value.

38
00:03:04,120 --> 00:03:08,890
Now you already know warder's the lambda in case of Gorlin stands for.

39
00:03:08,980 --> 00:03:12,250
So inside the lambda are doctors in between the parentheses.

40
00:03:12,430 --> 00:03:19,470
There does the curly braces you have to define the initial value of all the elements of the Attie.

41
00:03:19,480 --> 00:03:22,370
So here let us initialize it to zero.

42
00:03:23,120 --> 00:03:23,830
Right.

43
00:03:24,000 --> 00:03:27,010
So we have simply defined Adye of integers.

44
00:03:27,030 --> 00:03:34,830
That is my Adye that can only contain 5 elements and the initial value of all the elements is zero.

45
00:03:35,810 --> 00:03:41,930
Now if you look at the representation of the at a typical Airey you will find this right.

46
00:03:41,990 --> 00:03:44,240
So here I have five elements.

47
00:03:44,270 --> 00:03:49,600
So all the five elements is actually represented with the help of a particular index.

48
00:03:49,760 --> 00:03:54,740
So this is an index such as 0 1 2 3 and 4.

49
00:03:54,740 --> 00:04:00,050
Now notice we have five elements but the index starts from 0 and ends in 4.

50
00:04:00,080 --> 00:04:03,010
That is five minus one is four right.

51
00:04:03,020 --> 00:04:10,640
If I put here 6 then the index will move ahead such as 5 and a value will again be zero.

52
00:04:10,640 --> 00:04:14,990
Now these are the elements the initial value that we are defining it here.

53
00:04:15,170 --> 00:04:18,560
So all the elements initially has a value of zero.

54
00:04:18,560 --> 00:04:21,170
Now if I put here let's see minus 1.

55
00:04:21,170 --> 00:04:26,020
So instead of 0 we will have minus 1 minus 1 and so on.

56
00:04:26,020 --> 00:04:29,120
All the values will change from 0 to minus 1.

57
00:04:29,180 --> 00:04:32,560
So as of now let us keep it 0 only right.

58
00:04:33,620 --> 00:04:40,580
That or just to show you now proceeding forward as the areas are actually immutable in nature but has

59
00:04:40,670 --> 00:04:41,840
fixed size.

60
00:04:41,870 --> 00:04:46,460
So once we have defined the addy should only contain the five elements.

61
00:04:46,490 --> 00:04:49,700
So it will only have five elements right.

62
00:04:49,720 --> 00:04:52,090
We can not make it 6 in future.

63
00:04:52,400 --> 00:04:52,990
Right.

64
00:04:53,000 --> 00:04:59,060
And it is New Day will in nature that is Rick and Morty Feydeau values present inside the Attie such

65
00:04:59,060 --> 00:05:07,300
as if you want to change the element add the index of zero to let's see 32.

66
00:05:07,540 --> 00:05:14,800
So now then the code will be executed this zeroth index that is that this index will now contain 32

67
00:05:14,830 --> 00:05:15,900
instead of zero.

68
00:05:15,940 --> 00:05:18,200
So here Zero will not become 32.

69
00:05:18,260 --> 00:05:26,500
Right now if I change let's see my every index of let's see 3 I want to change that toward index element

70
00:05:26,710 --> 00:05:27,310
2.

71
00:05:27,580 --> 00:05:30,290
Let's see 54.

72
00:05:30,370 --> 00:05:31,780
So here instead of 0.

73
00:05:31,810 --> 00:05:35,160
I will get 54 as the integer value right.

74
00:05:36,120 --> 00:05:40,710
So this shows that the areas are actually mutable in nature that is once defined.

75
00:05:40,710 --> 00:05:47,840
You can change the values right now if you want to print the values so for that you can simply use print

76
00:05:47,840 --> 00:05:54,200
line Lerche see my addy and simply use the index note to find the index.

77
00:05:54,210 --> 00:05:58,640
You'll simply need to use the square brackets square brackets open and close.

78
00:05:58,650 --> 00:05:59,820
Now insert this.

79
00:05:59,820 --> 00:06:00,720
You will simply use.

80
00:06:00,750 --> 00:06:02,900
Let's say I'm on the plane they're told LMA.

81
00:06:03,120 --> 00:06:04,300
Or the fourth element.

82
00:06:04,320 --> 00:06:07,420
So far that you have to use the index of three.

83
00:06:07,500 --> 00:06:08,640
So let us note in the chord

84
00:06:11,690 --> 00:06:15,020
so the output console will we get 50 for as the output.

85
00:06:15,020 --> 00:06:21,840
Now if you want to print all the elements present inside the Adye that is right from 30 to 0.

86
00:06:21,860 --> 00:06:27,080
So far that we need to use those for each loop such as.

87
00:06:27,520 --> 00:06:33,610
Define element in operator followed by my addy not the concept of for a loop.

88
00:06:33,620 --> 00:06:36,570
We already saw in the previous Mordy was right.

89
00:06:36,650 --> 00:06:38,340
So let us define.

90
00:06:38,360 --> 00:06:40,460
Lindsay was pretty plain statement.

91
00:06:40,660 --> 00:06:43,220
Or insert of these simply use element.

92
00:06:43,430 --> 00:06:48,010
So this will simply paint all the elements present inside the mighty.

93
00:06:48,180 --> 00:06:52,240
And here we get all the output 32 zeros rule 54 and 0.

94
00:06:52,230 --> 00:06:56,240
Now make a note here that the element present at 1 and 2 and 4.

95
00:06:56,250 --> 00:06:58,540
We have not had initialized that is.

96
00:06:58,540 --> 00:07:01,410
It is by default 0 that we have defined here.

97
00:07:01,470 --> 00:07:07,390
So if you want you can also change modify the value by providing the index legacy index.

98
00:07:07,400 --> 00:07:11,080
At 1 equal to 10 or living like this.

99
00:07:11,190 --> 00:07:13,020
Let us note in the chord.

100
00:07:13,240 --> 00:07:15,060
And here we get Lemon here.

101
00:07:15,190 --> 00:07:23,820
Right now if I suppose use the index of let's say my addy for the index Let's see nine or eight equal

102
00:07:23,820 --> 00:07:25,690
or do let's say crania 3.

103
00:07:25,690 --> 00:07:32,470
So since we know that the size of the area is only 5 so from where we are getting the aid index.

104
00:07:32,470 --> 00:07:39,180
So if we're in the court right now it was simply through an error that add a index out of bounds exception.

105
00:07:39,220 --> 00:07:39,620
Right.

106
00:07:39,640 --> 00:07:47,140
As expected an index out of bounds exception because our added does not contain the eighth or ninth

107
00:07:47,230 --> 00:07:47,810
element.

108
00:07:47,830 --> 00:07:48,430
Right.

109
00:07:48,670 --> 00:07:52,330
So there is no possibility of having the index of it.

110
00:07:52,330 --> 00:07:54,480
So that is why it has simply thrown the error.

111
00:07:54,640 --> 00:08:00,360
And that is why we see that we cannot add more elements as mentioned here in future.

112
00:08:00,370 --> 00:08:07,810
So that is why please make a note please remove discord and now we are simply printing element inside

113
00:08:07,810 --> 00:08:10,710
the Adye and simply printing that element.

114
00:08:10,720 --> 00:08:16,930
Suppose if you want to print all the elements with the help of the index so far that you've already

115
00:08:16,930 --> 00:08:27,080
got to do is simply use the form to provide the index variable in my addy or the range zero dot dot.

116
00:08:27,160 --> 00:08:28,870
Let's see for.

117
00:08:29,140 --> 00:08:35,850
So index will vary from 0 1 to 3 and 4 narked will be more specific.

118
00:08:35,860 --> 00:08:42,310
So here we have 0 1 2 3 and 4 like this right now to be more specific instead of 40 you can simply use

119
00:08:42,730 --> 00:08:47,160
my every dot size minus one.

120
00:08:47,230 --> 00:08:54,500
That is my radar will simply done 5 right so minus 1 will not be done for.

121
00:08:54,520 --> 00:08:58,640
So this will all become finally fought like this.

122
00:08:59,020 --> 00:09:07,290
So it is a more generalized form and then simply print the my ID of the index.

123
00:09:07,430 --> 00:09:14,060
So the index will simply vary from 0 1 to 3 and 4 and it will simply print out all the elements present

124
00:09:14,080 --> 00:09:15,310
inside the area.

125
00:09:15,530 --> 00:09:23,610
So here let us use red line or the new line character and note in the chord.

126
00:09:23,640 --> 00:09:30,130
So in the output console we get 32 0 and then again Tardieu to zero.

127
00:09:30,250 --> 00:09:33,180
So in both of these works are working perfectly fine.

128
00:09:33,190 --> 00:09:37,670
So this is the way to print all the elements inside the collection.

129
00:09:37,780 --> 00:09:43,570
So in the upcoming videos they will use these two loops again to print out all the elements present

130
00:09:43,570 --> 00:09:45,270
inside the collection.

131
00:09:45,280 --> 00:09:46,880
Now at the end of this video.

132
00:09:46,900 --> 00:09:51,750
I would again like to highlight this point and add this area has a fixed size.

133
00:09:51,940 --> 00:09:54,470
So this is actually the problem for us.

134
00:09:54,460 --> 00:09:56,670
Suppose you want to add elements in the future.

135
00:09:56,740 --> 00:09:57,960
But you cannot do it.

136
00:09:58,090 --> 00:10:02,340
So for that we will check out the aerialist in Codlin in the next video.

137
00:10:02,530 --> 00:10:04,850
So please make sure you check out my next video.

138
00:10:04,850 --> 00:10:06,450
This is considered signing off.

139
00:10:06,640 --> 00:10:08,550
And thanks for watching and have a good day.