1 00:00:00,510 --> 00:00:03,730 So first of all are we fair to the name of this array. 2 00:00:03,970 --> 00:00:11,270 Floats numbers are a ok and then I need to actually be in a pair of brackets after my name. 3 00:00:11,760 --> 00:00:16,550 And here I need to actually putting this index here index. 4 00:00:16,800 --> 00:00:17,010 OK. 5 00:00:17,010 --> 00:00:21,540 And this means for example the first time that this group is going to be executed the value of this 6 00:00:21,540 --> 00:00:23,150 index variable is zero. 7 00:00:23,160 --> 00:00:23,740 OK. 8 00:00:23,970 --> 00:00:26,020 And then it's going I try to check this condition. 9 00:00:26,070 --> 00:00:29,150 So as you can see here the value of this index value bet is zero. 10 00:00:29,250 --> 00:00:33,890 So zero is less than the length of these float numbers right a. 11 00:00:34,130 --> 00:00:37,910 Million of these numbers Arai is actually 15. 12 00:00:38,040 --> 00:00:39,650 So 0 is less than 15. 13 00:00:39,690 --> 00:00:45,420 So this condition evaluates to true and then it can actually execute the lines of code that are actually 14 00:00:45,420 --> 00:00:47,010 inside of this for loop. 15 00:00:47,040 --> 00:00:49,670 So here we actually referred to the name of this array. 16 00:00:49,800 --> 00:00:52,690 Floats are numbers as you can see here. 17 00:00:52,830 --> 00:00:53,500 OK. 18 00:00:53,750 --> 00:00:56,010 And inside the brackets I said index. 19 00:00:56,070 --> 00:00:56,650 OK. 20 00:00:56,680 --> 00:00:58,870 So the index is 0. 21 00:00:58,890 --> 00:01:03,130 So it's going to actually go inside the index zero of these arii. 22 00:01:03,150 --> 00:01:03,980 OK. 23 00:01:04,500 --> 00:01:09,670 And then we can actually assign a value to the index zero of this hourly or key. 24 00:01:09,810 --> 00:01:15,030 So for example five plus three multiplied by index. 25 00:01:15,030 --> 00:01:18,320 And first of all let me actually explain this piece of code here. 26 00:01:18,420 --> 00:01:25,110 As I said before in the previous tutorials are the multiplication operator has higher precedence than 27 00:01:25,110 --> 00:01:27,840 the addition operator OK. 28 00:01:28,090 --> 00:01:34,050 So this piece of code here this operation is going to be executed first. 29 00:01:34,050 --> 00:01:34,510 OK. 30 00:01:34,650 --> 00:01:37,860 So this multiplication here is going to be executed first. 31 00:01:37,890 --> 00:01:38,730 So free. 32 00:01:38,820 --> 00:01:45,390 Multiply it by index and then the result of this operation is going to be added to this number. 33 00:01:45,390 --> 00:01:46,010 Number five. 34 00:01:46,020 --> 00:01:46,470 OK. 35 00:01:46,470 --> 00:01:51,600 So because multiplication operator has higher precedence than the plus operator. 36 00:01:51,720 --> 00:01:54,100 This piece of code is going to be executed first. 37 00:01:54,150 --> 00:01:59,660 The result of this operation is going to be added to this number five value. 38 00:01:59,660 --> 00:02:00,020 OK. 39 00:02:00,030 --> 00:02:01,410 Here let me explain again. 40 00:02:01,620 --> 00:02:05,720 Here I am actually referring to the name of this are a float numbers Ali. 41 00:02:06,030 --> 00:02:08,450 And here I am actually putting the index. 42 00:02:08,490 --> 00:02:09,140 OK. 43 00:02:09,450 --> 00:02:13,890 So for example the first time that this loop is going to be executed the value of this index variable 44 00:02:13,890 --> 00:02:14,760 is 0. 45 00:02:14,760 --> 00:02:16,010 So here it is 0. 46 00:02:16,200 --> 00:02:20,880 So and then it's actually assigned dissuade value to these are to the index zero of this Ari. 47 00:02:20,910 --> 00:02:21,380 OK. 48 00:02:21,510 --> 00:02:26,730 So first it's going to actually multiply number free by not by the value of this index. 49 00:02:26,730 --> 00:02:28,890 So the value of this index is zero. 50 00:02:28,980 --> 00:02:31,860 So free multiplied by zero is zero. 51 00:02:31,860 --> 00:02:34,770 And five plus zero is five. 52 00:02:34,980 --> 00:02:43,560 So the value of the index zero of this area is for example 5 and then it can actually increment the 53 00:02:43,560 --> 00:02:46,130 value of this index variable Bhagavan. 54 00:02:46,140 --> 00:02:51,390 So now the value of this index value bet is one and then it's going to actually check this condition. 55 00:02:51,390 --> 00:02:54,600 So if one is less than the value of the length of this array. 56 00:02:54,650 --> 00:02:55,200 OK. 57 00:02:55,290 --> 00:02:58,590 So it can actually execute this line of code here again. 58 00:02:58,590 --> 00:03:01,750 So now the value of this index what value of N is one. 59 00:03:01,860 --> 00:03:04,950 And now we want to actually assign a value to the index. 60 00:03:04,950 --> 00:03:13,350 One of these houri so free multiplied by 1 is free and five plus free is it. 61 00:03:13,350 --> 00:03:17,020 So 8 is the value that is inside of the index. 62 00:03:17,040 --> 00:03:18,410 One of these arii. 63 00:03:18,420 --> 00:03:18,800 OK. 64 00:03:18,810 --> 00:03:27,450 So hopefully that makes sense and let's actually create another for a loop here for an inside Apprentice's. 65 00:03:27,450 --> 00:03:29,820 Let's actually create a variable. 66 00:03:29,910 --> 00:03:30,540 OK. 67 00:03:30,540 --> 00:03:37,350 After this for loop Let's actually create another for look here inside this uncreate method and after 68 00:03:37,350 --> 00:03:38,360 these follow up here. 69 00:03:38,370 --> 00:03:38,820 OK. 70 00:03:38,850 --> 00:03:48,540 So typing here for an inside Apprentice's Let's actually create another variable in that index and assign 71 00:03:48,540 --> 00:03:51,330 the value zero to this index valuable. 72 00:03:51,630 --> 00:04:00,950 And here we need to actually create a condition here until index is less than float numbers are read 73 00:04:00,950 --> 00:04:02,990 at length semi-colon. 74 00:04:03,600 --> 00:04:08,620 And here I need to actually type in index plus plus. 75 00:04:08,640 --> 00:04:15,770 So after each execution of this for loop it can actually add one value to the value of this index variable. 76 00:04:15,780 --> 00:04:16,190 OK. 77 00:04:16,200 --> 00:04:23,000 So first here I want to actually instantiate these two string objects that I actually created here. 78 00:04:23,100 --> 00:04:23,760 OK. 79 00:04:23,760 --> 00:04:26,330 So here I just need to refer to the name of these objects. 80 00:04:26,340 --> 00:04:31,010 All it takes the index value assignment operator. 81 00:04:31,020 --> 00:04:35,870 Now I want to actually get the value of this TDX the index takes you. 82 00:04:36,060 --> 00:04:42,560 So I just need to type in here TXI index dot text dot to a string. 83 00:04:42,750 --> 00:04:43,350 OK. 84 00:04:43,350 --> 00:04:50,490 So because this object is actually strange we need to actually convert this value that we're actually 85 00:04:50,490 --> 00:04:52,560 getting from this the index. 86 00:04:52,600 --> 00:04:59,420 And it takes you to a string value so that we can actually assigned a value to this all the index value. 87 00:04:59,420 --> 00:04:59,870 OK. 88 00:05:00,210 --> 00:05:08,350 And let's actually instantiate our second object here all the value value assignment operator. 89 00:05:08,460 --> 00:05:13,420 So I can't just dive in here anti-X the value that it dot to a string. 90 00:05:13,560 --> 00:05:14,050 OK. 91 00:05:14,220 --> 00:05:19,190 Now let's actually output some values to these text views. 92 00:05:19,260 --> 00:05:24,100 So I can just type anti-X the index that said text. 93 00:05:24,300 --> 00:05:29,450 And first of all I want to actually output the value of these to all you exceed the value. 94 00:05:29,460 --> 00:05:34,350 First I want to actually output the value of this old TDX the index of value. 95 00:05:34,460 --> 00:05:36,170 Ok so I just need you type here. 96 00:05:36,190 --> 00:05:38,500 All Euxine the x value plus. 97 00:05:38,610 --> 00:05:41,690 And now I can just type in here. 98 00:05:42,030 --> 00:05:43,000 Index. 99 00:05:43,110 --> 00:05:49,560 So first I refer to the name of this object all the x x value that has this value the value that that 100 00:05:49,560 --> 00:05:52,680 is actually inside the T is the index takes text view. 101 00:05:52,920 --> 00:05:58,530 I am actually putting a plus operator in order to concatenate these two values together. 102 00:05:58,560 --> 00:06:02,780 And here I am actually referring to the name of the index variable. 103 00:06:02,820 --> 00:06:07,050 As you can see here in order to output the value of this index to the screen. 104 00:06:07,050 --> 00:06:07,410 OK. 105 00:06:07,470 --> 00:06:12,530 So here again it's actually typing takes the value that said text. 106 00:06:12,600 --> 00:06:19,020 And here I want to output the value of of these all the x the value value plus operator. 107 00:06:19,020 --> 00:06:26,270 Now I want to actually output the value that is inside of the index of these Aure. 108 00:06:26,490 --> 00:06:28,310 OK float numbers. 109 00:06:28,530 --> 00:06:32,800 So here I just need to refer to the name of this array sub index. 110 00:06:33,030 --> 00:06:34,860 OK array sub index. 111 00:06:34,890 --> 00:06:40,350 And this means give me the value that is inside of that index. 112 00:06:40,410 --> 00:06:41,230 OK. 113 00:06:41,670 --> 00:06:48,370 So as you know after each execution of this loop the value of this index variable is going to be incremented. 114 00:06:48,690 --> 00:06:53,180 So and that value is going to be in sight of these brackets. 115 00:06:53,190 --> 00:06:59,670 And then this line of code is going to actually output the value that is actually specific to that index. 116 00:06:59,670 --> 00:07:00,120 OK. 117 00:07:00,150 --> 00:07:06,000 So hopefully that makes sense and let's actually run our project and see what happens. 118 00:07:06,000 --> 00:07:11,210 So as you can see here now our application is actually running on this emulator here. 119 00:07:11,220 --> 00:07:16,200 And as you can see here we messed up things a little and we need to actually fix some of the issues 120 00:07:16,200 --> 00:07:19,350 that are actually related to the user interface. 121 00:07:19,350 --> 00:07:23,910 So first let's actually go back and say this content underline mean that made that example and here 122 00:07:24,080 --> 00:07:30,840 as you can see I need to click on this clear cache here and double click and this takes you and for 123 00:07:30,840 --> 00:07:37,740 the text just typing here index and double click on the stakes for you and for the text just type in 124 00:07:37,740 --> 00:07:45,690 here value and if you go back inside this main activity the java file here and here after this are index 125 00:07:45,780 --> 00:07:48,310 as you can see puts a plus operator. 126 00:07:48,570 --> 00:07:54,480 And here just put into double quotes and insert double quotes just putting a newline character OK. 127 00:07:54,560 --> 00:08:03,260 Pipeful slash and again do the same thing here plus operator to double quotes back for a slash and a 128 00:08:03,500 --> 00:08:04,120 shape. 129 00:08:04,140 --> 00:08:06,000 So now let's get to that on our project again. 130 00:08:06,060 --> 00:08:06,390 OK. 131 00:08:06,390 --> 00:08:11,080 Now as you can see here now we can actually see these values here on this screen. 132 00:08:11,100 --> 00:08:11,570 OK. 133 00:08:11,610 --> 00:08:12,780 Index value. 134 00:08:12,960 --> 00:08:16,080 So the value of this index 0 is 5. 135 00:08:16,140 --> 00:08:19,620 The value of this index one is 8 and so on. 136 00:08:19,620 --> 00:08:25,170 Here as you can see the value of this index 14 is 47. 137 00:08:25,170 --> 00:08:27,620 So let me actually explain again here. 138 00:08:27,640 --> 00:08:29,370 In the inside of this for loop. 139 00:08:29,370 --> 00:08:33,420 First of all you're actually instantiating these two string objects. 140 00:08:33,480 --> 00:08:40,300 And we're actually getting the value that is inside of this takes the index of a text. 141 00:08:40,320 --> 00:08:41,020 OK. 142 00:08:41,370 --> 00:08:43,660 And here again we are doing the same team. 143 00:08:43,710 --> 00:08:48,000 And we are actually getting the value that is inside of the X the value takes. 144 00:08:48,030 --> 00:08:48,460 OK. 145 00:08:48,510 --> 00:08:55,720 And here in line 42 I am actually setting some text to this text the index takes you. 146 00:08:55,800 --> 00:08:56,520 OK. 147 00:08:56,800 --> 00:08:57,300 And I am. 148 00:08:57,300 --> 00:09:02,220 First of all referring to the name of this all the x the index value plus index. 149 00:09:02,250 --> 00:09:07,710 And here I want to actually output the value of this index as you can see the value of this index as 150 00:09:07,710 --> 00:09:08,600 you can see here. 151 00:09:08,730 --> 00:09:09,420 OK. 152 00:09:09,900 --> 00:09:18,090 And here in line 43 I want to actually output the value that is inside of that specific index. 153 00:09:18,090 --> 00:09:18,510 OK. 154 00:09:18,570 --> 00:09:22,720 So for example the value that is inside of this index 0 is number five. 155 00:09:22,920 --> 00:09:23,470 OK. 156 00:09:23,610 --> 00:09:27,230 So let's actually delete these all the index value. 157 00:09:27,240 --> 00:09:28,650 And let's see what happens. 158 00:09:28,650 --> 00:09:35,250 So as you can see here now our application is actually running on the simulator and we cannot see the 159 00:09:35,250 --> 00:09:37,340 indexes before this number 14. 160 00:09:37,410 --> 00:09:37,950 OK. 161 00:09:38,100 --> 00:09:46,020 So that's the purpose of actually creating all Tillich's the next value we want to get the values before 162 00:09:46,030 --> 00:09:48,270 DS on index 14. 163 00:09:48,390 --> 00:09:48,850 OK. 164 00:09:48,900 --> 00:09:54,960 If you don't actually create this object you cannot see the values that were actually calculated before 165 00:09:54,960 --> 00:09:56,170 these index 14. 166 00:09:56,280 --> 00:09:56,940 OK. 167 00:09:57,330 --> 00:09:59,720 So you need to actually put this object here. 168 00:10:00,010 --> 00:10:08,370 In order to put out food the values before that of index 14 here as you can see now let's actually run 169 00:10:08,380 --> 00:10:09,300 our project again. 170 00:10:09,370 --> 00:10:15,510 And as you can see here again our application is running and we can see the index is a zero Freule number 171 00:10:15,520 --> 00:10:16,050 14. 172 00:10:16,070 --> 00:10:16,580 OK. 173 00:10:16,990 --> 00:10:24,430 And the job of this new line character is to actually to create a newline character after each execution 174 00:10:24,790 --> 00:10:29,730 of this line of code so that we can actually see the values here better. 175 00:10:29,800 --> 00:10:30,180 OK. 176 00:10:30,190 --> 00:10:33,730 But for example first of all it's going to actually execute this line of code and then it's going to 177 00:10:33,730 --> 00:10:38,680 actually out with the index zero to the screen. 178 00:10:38,860 --> 00:10:44,530 So after outputting this value here it's going to be putting a newline character here so that we can 179 00:10:44,800 --> 00:10:51,020 see the next value the next index after these are below this number zero here. 180 00:10:51,040 --> 00:10:51,360 OK. 181 00:10:51,370 --> 00:10:54,370 Number 1 2 3 and rule number 14. 182 00:10:54,430 --> 00:10:54,920 OK. 183 00:10:55,000 --> 00:10:58,330 So as you can see here we've got floating point numbers here. 184 00:10:58,390 --> 00:11:02,040 You can see that decimal points here and that the single digits. 185 00:11:02,120 --> 00:11:05,840 And here you can see that these values are floating point numbers. 186 00:11:05,860 --> 00:11:09,220 So I think that's enough for this utopia. 187 00:11:09,580 --> 00:11:14,530 If you have any questions please post the discussion in the course and then I'll do my best to answer 188 00:11:14,530 --> 00:11:15,290 your questions. 189 00:11:15,310 --> 00:11:15,700 OK. 190 00:11:15,760 --> 00:11:20,080 Thank you very much for watching and I'll see you in the next tutorial.