1

00:00:00,390 --> 00:00:04,020

And then it's going to go again inside of this index zero of this array.



2

00:00:04,170 --> 00:00:08,300

And then it's going to actually give us it's dissuade you appeal to us OK for the company name.



3

00:00:08,610 --> 00:00:14,900

And again for the devices here for the company device here are really fed through the name of these



4

00:00:15,030 --> 00:00:19,330

devices right here as you can see at inside the brackets of this array.



5

00:00:19,500 --> 00:00:22,020

I referred to the name of this index variable.



6

00:00:22,020 --> 00:00:25,120

So now the value of this index variable is number two.



7

00:00:25,260 --> 00:00:28,570

So to module 12 is number two.



8

00:00:28,650 --> 00:00:29,230

OK.



9

00:00:29,490 --> 00:00:34,080

So now as you can see it's going to go in state of the index number two of this Ali.



10

00:00:34,230 --> 00:00:36,930

And then it's going to actually give me this value to me ok.



11

00:00:36,930 --> 00:00:38,410

Galaxy Note 8.



12

00:00:38,610 --> 00:00:39,070

OK.



13

00:00:39,150 --> 00:00:43,260

And then it's going to assign that object to the index number two of this.



14

00:00:43,290 --> 00:00:43,770

OK.



15

00:00:43,770 --> 00:00:45,480

So hopefully that makes sense.



16

00:00:45,480 --> 00:00:48,390

Now let's actually add some more quotes to this class.



17

00:00:48,450 --> 00:00:52,010

OK so now let's actually create a method in this class.



18

00:00:52,020 --> 00:00:52,550

OK.



19

00:00:52,710 --> 00:00:58,770

So after the end in calibrates of this puzzle constructor here as you can see if you want to actually



20

00:00:58,770 --> 00:01:03,380

create another method here we want to actually create effect inside of this puzzle class.



21

00:01:03,390 --> 00:01:03,800

OK.



22

00:01:03,840 --> 00:01:08,290

So before the end in place of this puzzle class I want to actually create a.



23

00:01:08,340 --> 00:01:14,670

So I just pasting some lines of code here and then I explain to you what's going on here.



24

00:01:14,690 --> 00:01:20,220

So now as you can see here these are the lines of code that I pasted here.



25

00:01:20,480 --> 00:01:22,800

And now first let's actually look at this.



26

00:01:22,850 --> 00:01:25,440

Let's shuffle the device's method here.



27

00:01:25,580 --> 00:01:28,470

So the axis modifier of the Smurfette is public.



28

00:01:28,670 --> 00:01:34,640

The return type of this method is void and the name of this method is let's shuffle the devices.



29

00:01:35,000 --> 00:01:39,420

And as you can see here if it actually doesn't accept any arguments.



30

00:01:39,590 --> 00:01:44,370

So let's actually go inside the body of the Smurfette And let's see what's going on here.



31

00:01:44,390 --> 00:01:51,050

First of all as you can see I assigned the values zero to this current device model valuable as you



32

00:01:51,050 --> 00:01:52,040

can see here.



33

00:01:52,040 --> 00:01:52,710

Right.



34

00:01:53,060 --> 00:01:59,630

So that meant that for example when a user calls this method first the value of this current device



35

00:01:59,630 --> 00:02:06,300

model is going to be 0 and then it's going to exiguous this for loop here so forth.



36

00:02:06,470 --> 00:02:11,610

And as you can see I created are valuable here and the data type of this valuable is integer.



37

00:02:11,720 --> 00:02:17,090

The name of this variable is first device assignment operator 0.



38

00:02:17,090 --> 00:02:20,830

So here I created a variable and then assign the value 0 to this value.



39

00:02:20,840 --> 00:02:24,830

But semi-colon and then are here as you can see here.



40

00:02:24,830 --> 00:02:27,430

I actually put this condition here.



41

00:02:27,590 --> 00:02:32,440

So this condition actually determines how many times this fall is going to be executed.



42

00:02:32,630 --> 00:02:40,100

So until the value of this first device here is actually less than the value of the length of this company



43

00:02:40,130 --> 00:02:43,410

and device is arii this loop is going to be executed.



44

00:02:43,700 --> 00:02:47,590

And here as you can see I actually put this value first device plus plus.



45

00:02:47,600 --> 00:02:52,400

So this means that after each execution of this for a loop the value of this first device is going to



46

00:02:52,400 --> 00:02:54,370

be incremented by 1.



47

00:02:54,380 --> 00:02:57,480

So now let's go inside the body of this for a loop here.



48

00:02:57,680 --> 00:03:05,210

As you can see first of all I created over the table here and the name of this valuable is second device



49

00:03:05,360 --> 00:03:12,470

right assignment operator and here as you can see I referred to the name of the secure random numbers



50

00:03:12,530 --> 00:03:12,920

here.



51

00:03:12,980 --> 00:03:13,760

As you can see.



52

00:03:13,880 --> 00:03:14,920

So let's look at this.



53

00:03:14,930 --> 00:03:19,360

So your random numbers here inside this puzzle class as you can see here.



54

00:03:19,490 --> 00:03:22,190

I actually created this constant.



55

00:03:22,430 --> 00:03:27,820

So I actually put this final keyboard and this means that this this is actually a constant.



56

00:03:27,830 --> 00:03:33,570

And here as you can see the data type of this constant is secure random here.



57

00:03:33,830 --> 00:03:39,940

And the name of this constant is secure random numbers assignment operator Nilo secure random.



58

00:03:39,950 --> 00:03:46,040

So here I actually created an object of type secure random and the name of this object is a few random



59

00:03:46,040 --> 00:03:46,830

numbers.



60

00:03:46,880 --> 00:03:52,400

So here this object can actually generate secure random numbers for me.



61

00:03:52,400 --> 00:03:54,800

So now let's actually look at our for loop here.



62

00:03:54,800 --> 00:04:02,150

So I actually referred to the name of my constant secure random numbers that next int number of models.



63

00:04:02,210 --> 00:04:05,100

So it's going to actually give me a random number.



64

00:04:05,210 --> 00:04:06,540

OK.



65

00:04:06,680 --> 00:04:13,810

By looking at the number of models here as you can see inside this class I created this constant here.



66

00:04:14,420 --> 00:04:18,370

Private static final int number of models 60.



67

00:04:18,380 --> 00:04:20,580

So that's our method here.



68

00:04:20,600 --> 00:04:26,270

As you can see by it by calling these next in Mefford on this secure the numbers and by passing this



69

00:04:26,480 --> 00:04:34,880

number of mudholes to this method is going to give me a random number between number 0 and number 59



70

00:04:35,450 --> 00:04:41,750

and then that's value that a random value is going to be assigned to this second device by the bed which



71

00:04:41,750 --> 00:04:42,650

is of type integer.



72

00:04:42,650 --> 00:04:51,500

Right and in line 50 as you can see I actually created an object of type company and device as you can



73

00:04:51,500 --> 00:04:52,230

see here.



74

00:04:52,490 --> 00:04:59,520

And the name of this object is temp company and device Temperley company and device assignment operator.



75

00:04:59,750 --> 00:05:04,180

And here as you can see I've referred to the name of this as a company and devices address.



76

00:05:04,190 --> 00:05:10,910

So here inside this class I actually created an array of pipe company and device as you can see here



77

00:05:10,930 --> 00:05:12,500

in line 11 right.



78

00:05:12,500 --> 00:05:18,220

So inside this puzzle instructor I actually initialized this company and devices at.



79

00:05:18,230 --> 00:05:25,010

So now when the use for example creates an object of type puzzle this company and it was his idea is



80

00:05:25,010 --> 00:05:28,520

going to be initialized as you can see here in line 24.



81

00:05:28,520 --> 00:05:31,010

I am actually initializing this at a company devices.



82

00:05:31,010 --> 00:05:36,170

Assignment operator new company and device number of models as you can see here.



83

00:05:36,170 --> 00:05:37,230

Right.



84

00:05:37,340 --> 00:05:40,030

So here as you can see I to initialize this.



85

00:05:40,070 --> 00:05:50,040

And I said that this this is actually an array that can hold up for example 60 values OK can hold 60



86

00:05:50,040 --> 00:05:53,670

values 60 values of type company and device object.



87

00:05:53,670 --> 00:05:54,450

OK.



88

00:05:54,690 --> 00:06:01,850

So here inside this for loop as you can see here I am actually iterating over the values iterating through



89

00:06:01,920 --> 00:06:04,120

the values of this company and devices.



90

00:06:04,590 --> 00:06:05,590

As you can see.



91

00:06:06,030 --> 00:06:12,380

And then I am saying that company and devices index assignment operator new company and device.



92

00:06:12,390 --> 00:06:16,370

And here I am specifying as you can see here the first value.



93

00:06:16,650 --> 00:06:22,100

And here I am specifying the second value that is specified inside this company and device constructor



94

00:06:22,350 --> 00:06:22,980

OK.



95

00:06:23,190 --> 00:06:24,800

The first value is going to be companies.



96

00:06:24,810 --> 00:06:30,510

And the second value is going to be the devices and here we created these raise in order to initialize



97

00:06:30,750 --> 00:06:31,240

this era.



98

00:06:31,260 --> 00:06:33,340

He had company and devices arii.



99

00:06:33,540 --> 00:06:35,340

So hopefully that makes sense.



100

00:06:35,730 --> 00:06:38,790

And now let's look at our let's for the devices here.



101

00:06:38,910 --> 00:06:45,720

So here I actually referred to the name of this a company and devices and here I actually passed this



102

00:06:45,780 --> 00:06:49,640

first device to this inside the brackets here.



103

00:06:49,740 --> 00:06:50,990

OK first device.



104

00:06:51,060 --> 00:06:55,450

So it's going actually so look it's going to look at this for loop here as you can see.



105

00:06:55,730 --> 00:07:01,940

I created this valuable here first device and then it's going to give me a value for example the first



106

00:07:01,950 --> 00:07:02,470

value.



107

00:07:02,460 --> 00:07:07,460

So the first time that this group is going to be executed it's going to actually give me the first value.



108

00:07:07,460 --> 00:07:13,450

For example the value that is inside of the index zero of these are eight of these company anyway is



109

00:07:13,460 --> 00:07:20,190

at a first device and then it's going to assign that value to the stem company device and 11:51 as you



110

00:07:20,190 --> 00:07:20,830

can see.



111

00:07:20,880 --> 00:07:24,730

I'll defer that to the name of this company and the voters Aure.



112

00:07:25,230 --> 00:07:30,990

And I said that the value that is inside of the index first device as you can see here I want to change



113

00:07:30,990 --> 00:07:37,640

that value assignment operator unable to assign this value to this to the in the index first device



114

00:07:37,770 --> 00:07:39,210

of this company and devices.



115

00:07:39,210 --> 00:07:43,110

So company and devices second valid second device as you can see here.



116

00:07:43,400 --> 00:07:43,700

So it's.



117

00:07:43,730 --> 00:07:49,380

So it's going to change the value that is inside of this first device is going to assign the value that



118

00:07:49,380 --> 00:07:55,590

is inside of the inside of this second device and it's going to actually assign that value to the index



119

00:07:55,800 --> 00:08:00,360

first device of this company and devices at a as you can see here.



120

00:08:00,480 --> 00:08:09,000

Right and in line 52 again referred to the name of this company and devices Arey and I said Now we want



121

00:08:09,000 --> 00:08:13,370

to actually change the value that is inside of the index search and device.



122

00:08:13,420 --> 00:08:18,840

So company in devices second device assignment operator temp company and device.



123

00:08:18,840 --> 00:08:25,200

So as you can see here I actually created this value here teme company and device as you can see here



124

00:08:25,390 --> 00:08:29,340

this valuable actually hold a value of pipe company and device as you can see here.



125

00:08:29,340 --> 00:08:30,010

Right.



126

00:08:30,060 --> 00:08:35,750

So now I can actually assign that value to the index the second device of this company and devices.



127

00:08:35,760 --> 00:08:42,240

So in this way we can actually shop LTE devices that we have inside our application right.



128

00:08:43,040 --> 00:08:48,050

So hopefully that makes sense and if you have any questions please post a discussion in the course and



129

00:08:48,050 --> 00:08:51,650

then I do my best to answer all of your questions.



130

00:08:51,650 --> 00:08:54,260

And as you can see here I pasted these lines of code here.



131

00:08:54,260 --> 00:08:54,750

OK.



132

00:08:54,860 --> 00:08:57,600

So the access modifier of this method is public.



133

00:08:57,620 --> 00:09:03,970

So did the type of the Smurfit the return type of dismay if it is actually company and device.



134

00:09:03,980 --> 00:09:04,610

OK.



135

00:09:05,000 --> 00:09:08,380

So the name of this Meffert is give me the model OK.



136

00:09:08,660 --> 00:09:12,610

And as you can see this is not going to actually accept any arguments.



137

00:09:12,950 --> 00:09:18,200

And as you can see here inside of the Smurfit as you can see these are the lines of code that actually



138

00:09:18,200 --> 00:09:19,570

put inside of this effort.



139

00:09:19,790 --> 00:09:27,270

So first of all I actually created an if statement if the value of this current device model but as



140

00:09:27,260 --> 00:09:30,410

you can see I actually declare this variable inline 12.



141

00:09:30,440 --> 00:09:38,450

So as you can see I declared this variable in line 12 as you can see here and here I referred to the



142

00:09:38,450 --> 00:09:39,610

name of that rowdier.



143

00:09:39,620 --> 00:09:47,120

But if current device model variable is less than OK if the value of this variable is less than the



144

00:09:47,120 --> 00:09:55,470

value of the line of this company and devices are a is going to actually execute this line of code here.



145

00:09:55,560 --> 00:09:58,010

Return companies and devices.



146

00:09:58,170 --> 00:10:04,860

So here I actually referred to the name of this great company and devices sup Canon device model plus



147

00:10:04,890 --> 00:10:05,610

plus.



148

00:10:06,000 --> 00:10:06,460

OK.



149

00:10:06,570 --> 00:10:12,150

So as you can see here inside the constructor of this actually the puzzle here I assign the values zero



150

00:10:12,840 --> 00:10:14,450

to this kind of device model.



151

00:10:14,730 --> 00:10:20,380

And then again I assign the value zero to this current device modeled inside the let's Shafir the devices



152

00:10:20,400 --> 00:10:20,700

here.



153

00:10:20,700 --> 00:10:21,280

OK.



154

00:10:21,330 --> 00:10:27,930

And then here I actually specify that the return value that is inside of this current device model to



155

00:10:27,930 --> 00:10:28,540

me.



156

00:10:28,740 --> 00:10:29,230

OK.



157

00:10:29,400 --> 00:10:35,940

So for example for the first time that this is going to be executed the value of this kind of device



158

00:10:35,940 --> 00:10:37,100

model is number 0.



159

00:10:37,100 --> 00:10:37,550

OK.



160

00:10:37,680 --> 00:10:43,860

So this means that this number 0 is going to be the index 0 of this company and devices.



161

00:10:44,150 --> 00:10:44,420

Right.



162

00:10:44,460 --> 00:10:44,940

OK.



163

00:10:45,060 --> 00:10:49,780

So it's going to go inside of the index zero of this company and the devices are a.



164

00:10:49,860 --> 00:10:52,640

And then it's going to actually return that's of value to me.



165

00:10:52,650 --> 00:10:55,020

Ok return that value to the caller of this method.



166

00:10:55,230 --> 00:10:55,650

OK.



167

00:10:55,800 --> 00:11:01,950

And after that it's going to actually increment the value that is inside of this current device model



168

00:11:01,950 --> 00:11:02,410

right here.



169

00:11:02,440 --> 00:11:02,830

OK.



170

00:11:02,880 --> 00:11:05,070

Plus plus hopefully that makes sense.



171

00:11:05,070 --> 00:11:10,960

So if we actually divert to write this plus plus before the value of a name here.



172

00:11:11,130 --> 00:11:17,250

So in this case it's going to actually increment the value of this current device model first and then



173

00:11:17,610 --> 00:11:20,740

it's going to actually go inside of this company and devices.



174

00:11:20,760 --> 00:11:27,140

So for example before this benefit is executed the value of this current device model is really about



175

00:11:27,150 --> 00:11:28,140

is number 0.



176

00:11:28,320 --> 00:11:28,890

So for us.



177

00:11:28,920 --> 00:11:33,360

So after we are up we call this method is going to actually go inside of this Smurfit and then it's



178

00:11:33,360 --> 00:11:38,790

going to actually check this condition inside of the if statement if current device model is less than



179

00:11:39,090 --> 00:11:42,040

the value of the company and device is great.



180

00:11:42,210 --> 00:11:44,550

And then it's going to actually execute this line of code here.



181

00:11:44,550 --> 00:11:51,450

So inside the brackets here we have specified that plus plus connoted device model is going to increment



182

00:11:51,480 --> 00:11:54,080

the value of this kind of device model first.



183

00:11:54,100 --> 00:12:00,000

Okay for example the value of zero and now the value is number one and then that's number one is going



184

00:12:00,000 --> 00:12:03,480

to be in the index of this company and devices.



185

00:12:03,600 --> 00:12:08,170

So it's going to give me the value that is inside of the index of this hourly and then it's going to



186

00:12:08,190 --> 00:12:09,920

it's going to return that value to me.



187

00:12:09,960 --> 00:12:16,830

I want the value that is inside of the index zero of this array and then it can actually increment the



188

00:12:16,830 --> 00:12:22,860

value of this kind of device model by one and then it can actually to return other values to me else



189

00:12:23,160 --> 00:12:30,420

if the value of this current device model is equal or greater than the value of this land of this company



190

00:12:30,420 --> 00:12:32,980

and the basis of it is going to actually return nodded.



191

00:12:33,170 --> 00:12:34,040

Okay.



192

00:12:34,650 --> 00:12:36,760

And now it means nothing.



193

00:12:37,230 --> 00:12:40,660

For now we don't have to worry about this not here.



194

00:12:40,740 --> 00:12:42,310

It's going to return nothing to us.



195

00:12:42,330 --> 00:12:42,720

OK.



196

00:12:42,750 --> 00:12:47,580

If this condition if this condition evaluates to false OK it's going to actually turn off.



197

00:12:47,640 --> 00:12:48,130

OK.



198

00:12:48,210 --> 00:12:50,350

So hopefully that makes sense.



199

00:12:50,580 --> 00:12:54,350

And let's actually go back inside this main activity of a fight here.



200

00:12:54,540 --> 00:12:58,040

Let's actually do something with these classes that we actually created here.



201

00:12:58,170 --> 00:13:00,740

Company and device class and puzzle class.



202

00:13:00,750 --> 00:13:06,410

So inside of this uncreate Meffert Let's actually create an object from the editor class.



203

00:13:06,570 --> 00:13:10,220

So here I just paste in a line of code here.



204

00:13:10,500 --> 00:13:14,530

As you can see so the data type of object is added text.



205

00:13:14,550 --> 00:13:16,070

And this is the name of an object.



206

00:13:16,080 --> 00:13:18,590

It is the puzzle assignment operator.



207

00:13:18,690 --> 00:13:23,250

And here I cast this object to it it takes up to an edit text object.



208

00:13:23,250 --> 00:13:28,760

And here I said find view ID or dot ID dot EDT puzzle OK.



209

00:13:29,310 --> 00:13:32,610

And here let's actually create a stream object.



210

00:13:32,610 --> 00:13:33,100

OK.



211

00:13:33,240 --> 00:13:36,940

And the name of our object is old.



212

00:13:37,020 --> 00:13:38,810

It is a puzzle value.



213

00:13:39,030 --> 00:13:42,370

And then I need to actually put in a semi-colon at the end of my statement.



214

00:13:42,510 --> 00:13:47,610

So as you can see here I didn't actually instantiate this object here because I just wanted to declare



215

00:13:47,850 --> 00:13:51,290

this up this object yet here this string object.



216

00:13:51,300 --> 00:13:55,410

So now let's actually create an object from this puzzle class.



217

00:13:55,560 --> 00:13:56,980

Ok so here.



218

00:13:57,000 --> 00:13:59,780

So as you can see here the type of object is puzzle.



219

00:13:59,900 --> 00:14:03,950

OK the name of an object is my puzzle assignment operator.



220

00:14:04,050 --> 00:14:06,430

And here I actually instantiated this object.



221

00:14:06,450 --> 00:14:06,800

OK.



222

00:14:06,810 --> 00:14:10,670

So now this object is actually referring to some place in memory.



223

00:14:10,920 --> 00:14:17,500

Ok so now let's actually shuffle the for the devices that are actually inside of this puzzle.



224

00:14:17,520 --> 00:14:17,910

OK.



225

00:14:17,940 --> 00:14:23,160

So I just need to to the name of this puzzle that shuffle the devices.



226

00:14:23,610 --> 00:14:24,290

OK.



227

00:14:24,510 --> 00:14:29,560

So now it's going to actually shuffle the deck for the devices that are actually inside of this puzzle.



228

00:14:29,730 --> 00:14:30,150

OK.



229

00:14:30,150 --> 00:14:35,820

So remember that here in line 23 I actually created an object from this puzzle class.



230

00:14:35,820 --> 00:14:36,380

OK.



231

00:14:36,570 --> 00:14:42,690

So here because I actually instantiated this object the constructor that is inside of this puzzle class



232

00:14:42,720 --> 00:14:44,250

is going to be executed.



233

00:14:44,250 --> 00:14:49,290

OK so now these lines of code here as you can see is going is going to be executed here.



234

00:14:49,700 --> 00:14:50,190

OK.



235

00:14:50,280 --> 00:14:56,300

After the execution of these lines of code we actually called this let's shuffle the devices here.



236

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The Smurfette this let's shuffle the devices move it here on this my puzzle object here.



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OK so now let's actually create a for loop here.



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So as you can see here this is the for loop that actually created here.



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OK.



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So as you can see here inside the practices of this for loop I actually created an integer rowdier bill



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and the name of this valuable is.



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OK.



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And then I assigned the value zero to this variable.



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And here as you can see I specified I actually created a condition.



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OK.



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Until it is less than number 60.



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OK.



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So until the value of this valuable is less than the value of 60 here this loop is going to be executed.



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And after each execution of this for a loop the value of this type of argument is going to be incremented



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by 1.



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OK.



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So inside of this for loop as you can see here I referred to the name of this object that I actually



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declared in like 20.



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OK.



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Old EDT puzzle value assignment operator idiotcy puzzle right.



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It's a puzzle.



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So as you can see here this is the name of the text object.



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OK.



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It is the puzzle that get text that string.



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So here I am actually getting the text of these added text object.



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Here as you can see and I am actually converting this value to a string value so that I can actually



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sign that value to this all the EDT puzzle value OK.



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And in line 51 here I actually want to actually set some text to this EDT puzzle object.



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OK.



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So it is the puzzle that said text all is puzzle value.



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So in this way it's going to actually output the previous values that were actually inside of this text



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view here as you can see it's going to out with the old values that were actually inside of the state's



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view.



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And then it's going to actually be concatenated value with the newest value in my puzzle that gave me



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the model.



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OK.



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So here I actually first to the name of this post my puzzle object that they actually created in line



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23 and I actually called the Smurfette on this object.



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Give me the models.



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So as you can see here inside of this i'll give me them of those Meffert.



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I actually put these these lines of code here.



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If current device model is less than company devices that lenth company and devices that lenth then



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it's going to actually execute this line of code here returned company on devices current device model



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plus plus.



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So it's going to go inside of this array and then it's going to actually return the value that is inside



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of this current device model index.



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And then it's going to increments that value by one.



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OK.