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So here as you can see in line number three hundred and fifty five we have actually a value of L which



2

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is of type integer and the name of this variable is correct animal name index.



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So I put an assignment operator here and then I referred to the name to the name of this list here.



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All animals names list dot index of correct animals answer.



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00:00:24,840 --> 00:00:28,960

So here I have to actually get the index of the correct animal answer.



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So as you can see here in say the Smurfette short and this animal here in line number three hundred



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and fit a frailty as you can see I am actually assigning This next animal image name to describe animals.



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And so in order to specify that what is going to be actually the correct answer.



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00:00:47,670 --> 00:00:47,940

Right.



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So then in line number twenty nine I actually removed this value from the index zero of these all animals



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names list and then I assigned this value to this valuable which is of types three in name.



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Next animal image name in line number three hundred and fifty as you can see I am assigning.



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Next animal image name to this correct animals answer.



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So this valuable actually holds the correct answer of the current question.



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So now let's look at this line of code here.



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As you can see I am actually fairly new to the name of this list here.



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All animals names list.



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So that index of.



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So now you want to actually get the index of these value correct.



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Animals answer inside this list.



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So the index is going to be an integer value right.



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And then it's going to assign that value to the integer variable correct and and immortally index in



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line number three hundred and fifty six.



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As you can see we have actually a variable of type streams and the name of this variable is correct.



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Animal name.



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And then I put an assignment operator here and then I refer it to the name of this list all Alamance



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names list dot remove.



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So now I want to remove this value.



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Correct animal name index.



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00:02:06,270 --> 00:02:06,760

Right.



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So here as you can see I am actually the first I am actually getting the index of this value inside



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this list right.



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And that I am assigning that index to this value in line number three hundred and fifty six.



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I am actually removing this value that is inside of this index inside this list.



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So all animals names list that remove the value that is inside of this index.



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Correct animal name index.



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And then it's going to actually remove and then and then it's going to actually remove that value and



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then it's going to assign that removed value to this correct.



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And any money right.



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So this string variable now holds that removed value that is inside of this index.



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Correct.



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And the name index and in line number three hundred fifty seven.



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I actually again I think this value this all animal names list.



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But this time this value correct animal name is going to be added to the last index.



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So now let me explain again here in line number three hundred fifty five.



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I am actually getting the index of the correct answer of the current question.



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So now let me show you the emulator as you can see this is the emulator.



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And here this is actually our current question.



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So here we have an ant.



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So let's look at this question.



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And now as you can see here I am actually getting the correct answer.



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The index of the correct answer in say the least.



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So it's going to give us that in days and then it's going to actually sign that index to this variable



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which is a finite integer in line number three hundred and fifty six.



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As you can see we have actually a variable of type streams.



56

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And the name of this variable is correct animal name.



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Right.



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And then I put an assignment operator here and then I referred to the name of this list.



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All animals names list dot remove.



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Now you want to remove this value that is inside of this index.



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Correct animal name index and then it's going to actually assign that removed value to this correct



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animal name.



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And then in line number three hundred and fifty seven I want to actually add this correct animal name



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to the last index of this all animal names list because of the reason that you were actually doing this



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here.



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I am actually removing this.



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The correct answer.



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The name of the correct animal name here from this list.



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And then I am actually adding it.



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Adding this value with the correct animal into this list because first I want to specify the other values



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so as you can see here we have an aunt right.



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So first you should actually specify the other options for example fish Chad bird right.



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First I want to specify these values here.



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And finally I can actually add the answer to this quiz.



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OK.



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I don't want to actually just randomly just put the answer here as an option.



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First I want to specify the other options.



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Fish for fish cats or bird and then at the end of the Smurfette you can see that you will see that we



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00:05:10,950 --> 00:05:16,020

are going to add the answer here by using another algorithm.



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But in this way when we actually add the correct animal name to an index the last index of this list



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in this way we are not going to for example actually by accident at the answer here between the options



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between the guest buttons.



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Right.



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So first I want to be sure that the answer is not actually between the buttons.



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And then I will actually substitute with the answer with another option.



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So for now I just know that here that we are actually doing this.



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Is that the reason that we're doing here is that because first I want to actually remove the value that



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is inside of it that is inside of the index.



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00:05:56,410 --> 00:05:57,680

Correct answer.



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And then of which we are going to add that value again to this list so that that value is going to be



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00:06:03,310 --> 00:06:06,150

added to the last index of this list.



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00:06:06,160 --> 00:06:09,660

And now let me actually talk about this for loop here.



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As you can see.



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00:06:11,230 --> 00:06:13,450

So now let's look at this for love here.



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00:06:13,510 --> 00:06:18,560

As you can see if you have a full loop and inside the practices of this follow up as you can see we



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00:06:18,580 --> 00:06:23,210

have actually Avari about an integer and the name of this variable is a row.



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00:06:23,500 --> 00:06:26,650

And then I assigned the values 0 to this variable.



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00:06:26,650 --> 00:06:27,550

Right.



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00:06:27,550 --> 00:06:32,170

And then here I actually created a condition that actually determines that.



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How many times this for loop here is going to be executed.



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00:06:36,100 --> 00:06:42,480

So until then I do have this low here is actually less than the value of this number of animals gets



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lost here.



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00:06:43,660 --> 00:06:49,470

As you can see so this variable is going to actually specify that how many number of guests throws we



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are going to have inside our quiz.



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So now let me show you the emulator as you can see as you can see here we have actually to get through



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the first year so is here that contains these two buttons on it and fish and the second.



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00:07:02,390 --> 00:07:06,130

So is this one that actually contains these two buttons.



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The bird and the cat.



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00:07:07,960 --> 00:07:13,870

So and that he had finally here we are actually saying that after each execution of this for a loop



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00:07:13,870 --> 00:07:18,770

here we're going to add one value to the value of these row of idea.



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00:07:19,090 --> 00:07:24,910

So now as you can see here inside this for loop here we have another for loop as you can see here.



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00:07:24,910 --> 00:07:27,830

So this is actually on an inner for loop as you can see.



113

00:07:28,090 --> 00:07:29,730

So let's look at this fall here.



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So for it and here we actually created over the table and the name of this variable is column.



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00:07:36,340 --> 00:07:39,710

And then I assigned the value zero to this variable.



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And here again we're actually creating a condition that actually determines that how many times this



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00:07:45,960 --> 00:07:47,970

follows here is going to be executed.



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00:07:47,980 --> 00:07:55,360

So until the value of this column variable is less than the value of the lows of guess bottoms in animal



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animalcules.



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So now let's actually scroll to the top here in order to show you with this variable here as you can



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see.



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So in say this class main activity fragment as you can see here in line number 61 We have actually an



123

00:08:08,590 --> 00:08:14,480

array of linearly outs and the name of this area is rows of guest.



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00:08:14,490 --> 00:08:16,570

Hence in animalcules.



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Right.



126

00:08:17,710 --> 00:08:19,790

So we actually declare this error here.



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And this right here is going to actually hold the number of rows that we are going to have.



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00:08:25,720 --> 00:08:28,080

As you can see here this is going I should hold.



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00:08:28,090 --> 00:08:28,890

Excuse me.



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00:08:28,920 --> 00:08:33,500

This is going to hold the guess the rows that we are going to have inside our quiz.



131

00:08:33,520 --> 00:08:36,070

So as you can see here we have these two rows here.



132

00:08:36,070 --> 00:08:39,630

So this area is going to actually hold these two rows right.



133

00:08:39,820 --> 00:08:44,960

So we created an array here in order to actually hold these two rows here.



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00:08:45,190 --> 00:08:51,670

So now let's actually go back into our Android studio and let's scroll down here and let's actually



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go inside our method and as you can see here let's look at our full up here as you can see now we are



136

00:08:57,220 --> 00:09:01,660

actually the inside is show next animal Mefford and we are looking at this for a loop here.



137

00:09:01,840 --> 00:09:03,820

So let's actually look at this unfold here.



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00:09:03,840 --> 00:09:07,750

As you can see so the rows of spottiness in animal animalcules.



139

00:09:07,750 --> 00:09:10,740

So this is actually an array of linearly outs.



140

00:09:10,750 --> 00:09:16,160

OK this is an array that actually holds that linearly or else that we have inside our quiz.



141

00:09:16,500 --> 00:09:18,060

So guess.



142

00:09:18,340 --> 00:09:19,760

As you can see here.



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00:09:19,780 --> 00:09:25,960

So in this way I can actually access specific specific So for example the first value is actually zero



144

00:09:25,960 --> 00:09:26,290

right.



145

00:09:26,290 --> 00:09:31,690

So for the initial value that we assigned to this row here is the zero.



146

00:09:32,050 --> 00:09:33,910

And here it going to actually go.



147

00:09:34,050 --> 00:09:37,630

So now as you can see here the value of this variable is zero right.



148

00:09:37,630 --> 00:09:42,160

So it's going to go inside this Arev and it's going to go inside the index zero of this outbreak.



149

00:09:42,250 --> 00:09:49,540

So as you can see here this row here is actually the index is the linear layout that is inside of the



150

00:09:49,540 --> 00:09:56,170

index 0 of these are a rules of guess buttons in the milkweeds dot get child count.



151

00:09:56,380 --> 00:10:01,910

So if you look at this low here as you can see the children of this throw is these are these buttons



152

00:10:01,930 --> 00:10:02,880

as you can see here.



153

00:10:02,920 --> 00:10:09,400

This is this first button and the second button so that each child count of this linearly out here is.



154

00:10:09,580 --> 00:10:12,590

Have two buttons inside this linearly out.



155

00:10:12,640 --> 00:10:19,010

So we have the method get child Chalte get child count is going to return the value to number two.



156

00:10:19,330 --> 00:10:24,530

So those of guess what ends in animalcules a row that get child count.



157

00:10:24,550 --> 00:10:31,510

So here it's going to actually execute this inner for loop here until the value of this column is less



158

00:10:31,510 --> 00:10:37,790

than the value of the child count of these rows of spottiness in animalcules Sobero.



159

00:10:38,020 --> 00:10:38,830

OK.



160

00:10:39,310 --> 00:10:45,100

And then as you can see here finally I am actually specifying that after each execution of this for



161

00:10:45,110 --> 00:10:49,900

loop here it's going to actually increment the value of this column variable by 1.



162

00:10:49,900 --> 00:10:55,510

So let's actually go inside this for a loop here and let's see what's going on here in line number three



163

00:10:55,510 --> 00:10:57,310

hundred and sixty four.



164

00:10:57,310 --> 00:11:01,830

I actually created a button and the name of this button is PTEN gets.



165

00:11:01,960 --> 00:11:09,240

And then I put an assignment operator here and that I actually tested this article to a button object



166

00:11:09,690 --> 00:11:18,360

and I actually fed to this at a loss of just spottiness in animalcules sup role that get child X column.



167

00:11:18,480 --> 00:11:20,960

So it's going to actually access for example.



168

00:11:20,970 --> 00:11:23,930

Now as you can see the row is 0 and the column is 0.



169

00:11:23,970 --> 00:11:26,670

So it can actually go inside this linearly out.



170

00:11:26,670 --> 00:11:32,310

This is actually the first linear left right and it's going to actually look at the first the first



171

00:11:32,310 --> 00:11:34,610

color and so is Aunt button.



172

00:11:34,650 --> 00:11:39,930

And as you can see is the first column and then it's going to assign that value to the city and guess



173

00:11:40,260 --> 00:11:40,900

so.



174

00:11:41,010 --> 00:11:44,790

Now for example we are actually referring to this on button here right.



175

00:11:45,120 --> 00:11:47,690

And that he had and guess that set in a belt.



176

00:11:47,700 --> 00:11:48,810

True.



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00:11:48,990 --> 00:11:54,870

And as you can see here I am actually going to enable this spot and so each question that we're going



178

00:11:54,870 --> 00:11:58,920

to show to the user We're going to actually enable the buttons.



179

00:11:58,920 --> 00:12:04,830

As I told you in the previous serials when the user is actually guessing the name of the animal for



180

00:12:04,830 --> 00:12:07,150

example here the name of the animal is on the right.



181

00:12:07,260 --> 00:12:13,140

Now all of these buttons are going to be disabled and after you're going to show to the user the next



182

00:12:13,140 --> 00:12:17,260

question we need to actually make those buttons enable again.



183

00:12:17,420 --> 00:12:17,950

OK.



184

00:12:18,060 --> 00:12:19,260

So here we have fish.



185

00:12:19,260 --> 00:12:21,430

Now all these buttons are disabled.



186

00:12:21,690 --> 00:12:26,970

And again when I want to show the next question to the user that will we need to actually make all these



187

00:12:26,970 --> 00:12:29,760

buttons actually enabled.



188

00:12:30,030 --> 00:12:33,520

So that's why we actually created these four loops here.



189

00:12:33,810 --> 00:12:40,080

And then here as you can see I actually created a variable of type string and the name of this variable



190

00:12:40,080 --> 00:12:42,300

is animal image name.



191

00:12:42,480 --> 00:12:45,240

And then I put an assignment operator here.



192

00:12:45,540 --> 00:12:53,670

And as you can see here all animals names least that get and now as you can see here inside the prentices



193

00:12:53,970 --> 00:12:57,270

we have actually an operation inside these practices.



194

00:12:57,270 --> 00:13:01,800

We have another prentices and inside these Prentice's as you can see here I am actually multiplying



195

00:13:01,800 --> 00:13:07,220

the value of this row by two plus column.



196

00:13:07,240 --> 00:13:11,710

So the result of this operation here is going to be added to this column.



197

00:13:11,770 --> 00:13:18,090

So now I want to actually touch more about this line of code here because this is a very important point.



198

00:13:18,130 --> 00:13:22,000

This is actually are very important concepts concepts that you need to know.



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00:13:22,300 --> 00:13:25,580

And then let's actually talk more about this line of code here.