1 00:00:00,330 --> 00:00:04,230 So now let's actually look at all these lines of code here. 2 00:00:04,410 --> 00:00:11,290 So a low number 374 as you can see we have actually a variable of type Integer. 3 00:00:11,400 --> 00:00:13,610 And the name of this variable is zero. 4 00:00:14,040 --> 00:00:17,490 And here as you can see it refers to the name of this object. 5 00:00:17,490 --> 00:00:19,010 Secure random number. 6 00:00:19,140 --> 00:00:25,460 So they're actually the job of this object is to actually create a random number right. 7 00:00:25,470 --> 00:00:28,310 So set your random number the next event. 8 00:00:28,470 --> 00:00:35,700 So here is going to create an integer or random number for us from 0 to the value that we specify here. 9 00:00:35,700 --> 00:00:40,530 So secure random number that next int number of animals just rose. 10 00:00:40,560 --> 00:00:43,450 So now let me show you the emulator here. 11 00:00:44,670 --> 00:00:51,240 As you can see these are emulated right and now a number of animals just rules variable is going to 12 00:00:51,240 --> 00:00:59,430 hold the value that actually that is showing us the number of animals gets through. 13 00:00:59,520 --> 00:01:03,050 So for example as you can see we have to guess the rules here. 14 00:01:03,090 --> 00:01:07,230 The first one is here is this one that actually holds these two buttons. 15 00:01:07,230 --> 00:01:12,610 The first one is on it and the second one is horse and the second gets through here. 16 00:01:12,630 --> 00:01:18,390 This is what that second guess gastro that contains these two buttons the first button is flappy bird 17 00:01:18,690 --> 00:01:20,330 and the second button is penguin. 18 00:01:20,520 --> 00:01:23,110 So this number of animals gets through here. 19 00:01:23,120 --> 00:01:28,630 It's going to hold the number of the guests the rows that we have inside the quiz. 20 00:01:28,950 --> 00:01:37,110 So now I want to actually create I want to generate actually a random number between 0 and the number 21 00:01:37,110 --> 00:01:39,780 of animals just rows that we have here. 22 00:01:39,780 --> 00:01:45,490 So for example if you have actually to guess who's here right. 23 00:01:45,510 --> 00:01:52,980 So now it's going to actually generate a value of random value between 0 and 1 right between 0 and 2 24 00:01:53,010 --> 00:01:57,870 but not including number two because it's not going to include the final value. 25 00:01:57,860 --> 00:01:59,840 So for example here we have to get throws. 26 00:01:59,970 --> 00:02:06,120 So it can actually generate a random number between 0 and the number one is not going I should include 27 00:02:06,150 --> 00:02:07,570 the number two here. 28 00:02:07,740 --> 00:02:08,520 Right. 29 00:02:08,520 --> 00:02:14,060 So when we write to secure random number the next number of months gets throws it's going to actually 30 00:02:14,070 --> 00:02:19,720 generate a random number between 0 and this value here that we specify number of animals get through 31 00:02:19,720 --> 00:02:22,200 us but not including disvalue. 32 00:02:22,200 --> 00:02:24,660 So for example this value is too right. 33 00:02:24,690 --> 00:02:31,410 We have to guess throws so random that value that this object here is going to generate is actually 34 00:02:31,410 --> 00:02:33,530 a zero all number of what. 35 00:02:33,960 --> 00:02:37,160 So set your random number the next number of animals get through. 36 00:02:37,170 --> 00:02:41,470 It's going to generate a random value between a zero or number one. 37 00:02:41,490 --> 00:02:48,350 So and then it's actually a sign that randomly generated value which is often integer to this row of 38 00:02:48,360 --> 00:02:55,430 valuable so this variable is going to either hold the value at number 0 or the value number one. 39 00:02:55,570 --> 00:02:59,780 Right and then a line number 375. 40 00:02:59,790 --> 00:03:04,510 We have actually another variable and the name of this variable is column. 41 00:03:04,690 --> 00:03:11,170 And then I put an assignment operator here and now but again I want to actually generate another random 42 00:03:11,170 --> 00:03:16,190 value secure random number that next ain't two. 43 00:03:16,480 --> 00:03:24,570 So now I'm 100 percent sure that each row inside the crease has two columns. 44 00:03:24,580 --> 00:03:29,860 So as you can see here this through here has two columns as you can see here two buttons and so here 45 00:03:29,920 --> 00:03:34,730 is also has has also has actually two columns two buttons right. 46 00:03:34,780 --> 00:03:42,650 So I am 100 percent sure that I have actually two columns inside each row so secure random number next 47 00:03:42,710 --> 00:03:43,470 it to. 48 00:03:43,570 --> 00:03:48,460 So it's going I should again generate a random value between 0 and 2 but not including this value. 49 00:03:48,460 --> 00:03:49,120 Number 2. 50 00:03:49,270 --> 00:03:53,740 So it's going to either generate the value zero or devalue another one. 51 00:03:54,370 --> 00:04:00,070 So then it's going to actually assign that generated random value which is of that integers to this 52 00:04:00,070 --> 00:04:01,370 column variable. 53 00:04:01,630 --> 00:04:07,000 So this kind of variable is going to have either the value 0 or the value number one. 54 00:04:07,240 --> 00:04:13,690 And then let's look at this line of code here in line number three hundred and 76 linearly out random 55 00:04:13,690 --> 00:04:14,450 row. 56 00:04:14,860 --> 00:04:19,560 So now you may ask that what is the purpose of these lines of code here. 57 00:04:19,630 --> 00:04:26,680 The purpose of these lines of code is to actually a substitute one of the options of. 58 00:04:26,800 --> 00:04:28,170 Correct answer. 59 00:04:28,860 --> 00:04:35,580 So when we actually put these values here we are actually as you can see if you scroll to the top here 60 00:04:35,880 --> 00:04:42,260 we are actually specifying some randomly generated buttons someone randomly generated values for the 61 00:04:42,270 --> 00:04:48,710 guest options and we have not yet actually specified the actually the correct answer. 62 00:04:48,720 --> 00:04:53,950 We just generated these buttons with the random values but not including the answer. 63 00:04:54,000 --> 00:04:58,790 And that's why you can see that we actually removed that. 64 00:04:58,800 --> 00:05:03,430 The correct answer as you can see here in the look at these lines of what he really moved. 65 00:05:03,540 --> 00:05:08,030 The correct answer from the all animals named All animals are names at list here. 66 00:05:08,190 --> 00:05:14,840 And then we actually add it again that correct answer to that actually to the last index of these all 67 00:05:14,850 --> 00:05:17,230 animals named names here. 68 00:05:17,730 --> 00:05:23,330 And you can see that we actually generated these buttons with the values as you can see here. 69 00:05:23,700 --> 00:05:25,710 But our look at these lines of code here. 70 00:05:25,710 --> 00:05:32,040 Now I want to actually substitute one of the buttons with the correct answer. 71 00:05:32,040 --> 00:05:32,420 Right. 72 00:05:32,490 --> 00:05:37,280 So here as you can see look at this for loop here it is for loop here. 73 00:05:37,280 --> 00:05:42,440 It's going to actually generate four buttons with four different animal values. 74 00:05:42,450 --> 00:05:42,750 Right. 75 00:05:42,840 --> 00:05:44,850 But not the answer. 76 00:05:44,850 --> 00:05:46,110 So look at this flappy bird here. 77 00:05:46,110 --> 00:05:52,270 So it's going to actually put this flappy bird image here and we must guess the name of this animal. 78 00:05:52,320 --> 00:05:52,950 Right. 79 00:05:52,980 --> 00:05:59,010 But this for loop here is going to actually put four different animal names but not the answer because 80 00:05:59,010 --> 00:06:02,740 here we actually put the answer at the end of the list. 81 00:06:02,880 --> 00:06:04,610 And here as you can see here it is for Lapeer. 82 00:06:04,610 --> 00:06:08,550 It's going to actually just get the animal names from there. 83 00:06:08,580 --> 00:06:10,820 Actually the beginning of the list as you can see here. 84 00:06:10,950 --> 00:06:11,450 Right. 85 00:06:11,460 --> 00:06:17,070 If you look at these two lines of code here and if you just experiment with these two lines of code 86 00:06:17,070 --> 00:06:22,150 here you can see that you're actually getting the animal names from the beginning of the list. 87 00:06:22,170 --> 00:06:29,970 And here we actually added the animal named the correct animal name a tree that actually the last index 88 00:06:29,970 --> 00:06:30,910 of the list. 89 00:06:30,960 --> 00:06:36,940 And here as you can see we want to actually substitute one of the gifts options to be the correct answer. 90 00:06:37,080 --> 00:06:42,790 And that's why you want to choose the correct the randomly generated row as you can see here. 91 00:06:43,050 --> 00:06:48,440 And then I want to choose the randomly generated column and then here in line number three hundred and 92 00:06:48,450 --> 00:06:49,450 seventy six. 93 00:06:49,590 --> 00:06:55,050 As you can see I created a linearly out of a variable of type linearly out and the name of this but 94 00:06:55,120 --> 00:06:57,240 is a random row right. 95 00:06:57,270 --> 00:07:01,400 Assignment operator rows of just spottiness in animalcules. 96 00:07:01,410 --> 00:07:07,170 So this is actually an army that actually holds values of type linearly out right. 97 00:07:07,210 --> 00:07:10,890 So rows of spottiness in animal is Sub-Zero. 98 00:07:11,250 --> 00:07:13,080 So it's going to actually look at this area here. 99 00:07:13,080 --> 00:07:18,690 So now if I actually scroll to the top here inside this class you can see that we actually created this 100 00:07:18,950 --> 00:07:21,100 at a here in line number 61. 101 00:07:21,240 --> 00:07:26,670 So linear layout and array of linearly out as you can see here and then Aimee's loss of spottiness in 102 00:07:26,670 --> 00:07:27,940 animal cuius. 103 00:07:28,230 --> 00:07:34,650 And you can see that inside this uncreate view we actually initialized this out here as you can see 104 00:07:34,650 --> 00:07:36,300 here with these rows. 105 00:07:36,660 --> 00:07:41,010 But here if you scroll down here let's scroll down here and look at these lines of code. 106 00:07:41,010 --> 00:07:47,700 Here you can see that in line number three hundred and seventy six are referred to that are a. 107 00:07:48,090 --> 00:07:51,730 And I want to get our random row as you can see here. 108 00:07:51,750 --> 00:07:52,210 Right. 109 00:07:52,230 --> 00:07:54,590 So for example we have two rows here. 110 00:07:54,720 --> 00:07:58,490 I want to get that random blow for example Destro or the slope. 111 00:07:58,770 --> 00:08:04,070 And then here look at this line of code here in line number three hundred and seventy seven. 112 00:08:04,080 --> 00:08:08,910 So as you can see in this line of Cahir it can actually get a random group and it and then he's going 113 00:08:08,910 --> 00:08:13,390 to assign that random group to this random group variable here that we create here in like number three 114 00:08:13,390 --> 00:08:16,880 hundred and 376 in line number three hundred and seventy seven. 115 00:08:16,890 --> 00:08:22,200 We created another variable and the name of this variable is animal emergency. 116 00:08:22,320 --> 00:08:22,990 Right. 117 00:08:23,280 --> 00:08:30,250 And then I put an assignment operator here and I called the Smurfette get the exact animal name. 118 00:08:30,390 --> 00:08:34,330 And then I passed the correct animal's answer to this method. 119 00:08:34,590 --> 00:08:35,840 Right. 120 00:08:35,850 --> 00:08:42,560 So now as you can see here this variable here now holds the correct answer. 121 00:08:42,570 --> 00:08:47,970 So here we can actually change this name change the name of this variable to another value that is more 122 00:08:47,970 --> 00:08:48,780 meaningful. 123 00:08:48,780 --> 00:08:51,510 So correct animal image name. 124 00:08:51,600 --> 00:08:51,900 Right. 125 00:08:51,900 --> 00:08:55,780 So I can actually just type in here correct. 126 00:08:56,610 --> 00:08:58,620 Excuse me it's not capitalized. 127 00:08:58,890 --> 00:09:02,460 Correct animal image. 128 00:09:02,520 --> 00:09:03,500 As you can see here. 129 00:09:03,600 --> 00:09:04,970 Now it's more meaningful. 130 00:09:05,880 --> 00:09:11,950 And now this variable now holds the correct answer in line number three hundred and seventy eight. 131 00:09:11,950 --> 00:09:12,930 As you can see here. 132 00:09:13,120 --> 00:09:14,170 Look at this piece of code here. 133 00:09:14,260 --> 00:09:20,190 Look just look at this piece of code inside Apprentice's as you can see I am actually testing this object 134 00:09:20,200 --> 00:09:25,840 we bought an object I'm not creating a valuable here I'm just creating an object here. 135 00:09:26,260 --> 00:09:31,140 And as you can see I am referring to this random row here right. 136 00:09:31,150 --> 00:09:38,610 I'm referring to the random glue that get child at column right a random column as you can see here. 137 00:09:38,620 --> 00:09:39,270 Right. 138 00:09:40,500 --> 00:09:44,600 So random row that get tight at a column. 139 00:09:44,600 --> 00:09:50,680 So this column you have now holds a random value between zero and number one as you can see here. 140 00:09:51,260 --> 00:09:54,590 Dot as you can see here that set text. 141 00:09:54,590 --> 00:10:00,380 So here because we actually tested this value to a button object I can call this method and this value 142 00:10:00,380 --> 00:10:10,910 here as you can see right dot set text correct animal image name correct animal imagery and that's how 143 00:10:11,240 --> 00:10:17,640 I can actually substitute one of the gifts options with the correct answer. 144 00:10:17,660 --> 00:10:23,170 So it's going to actually look at one of the random rows and it's going to actually get one of the columns 145 00:10:23,170 --> 00:10:25,700 are randomly selected column as you can see here. 146 00:10:25,820 --> 00:10:30,530 And then it's going to actually call this effect on this value because we actually tested this value 147 00:10:30,530 --> 00:10:35,330 here to add but an update as you can see here we can call this method on this here. 148 00:10:35,360 --> 00:10:36,960 So our set takes. 149 00:10:37,040 --> 00:10:37,760 Correct. 150 00:10:37,820 --> 00:10:38,590 And in one image name. 151 00:10:38,600 --> 00:10:43,410 So now it's going to be set to one of the set that takes up one of the options. 152 00:10:43,490 --> 00:10:46,690 One of the options with the correct and emoluments name. 153 00:10:47,300 --> 00:10:50,300 So hopefully that makes sense. 154 00:10:50,440 --> 00:10:54,380 And now we need to actually create some other MFX here inside this class.