1 00:00:00,630 --> 00:00:02,240 An inside apprentices. 2 00:00:02,280 --> 00:00:05,930 And now let's actually create an if statement here. 3 00:00:06,160 --> 00:00:13,440 If and in say the practices I can't just refer to the name of this TXI the secure random numbers that 4 00:00:13,620 --> 00:00:14,470 get text. 5 00:00:14,490 --> 00:00:14,970 OK. 6 00:00:15,050 --> 00:00:16,760 That is strange. 7 00:00:16,950 --> 00:00:27,000 That land is greater than or equal to number nine here as you can see I am specifying that if the value 8 00:00:27,000 --> 00:00:34,890 of these TXI the secure random numbers if the length of this value is greater than 9 if the characters 9 00:00:34,920 --> 00:00:43,710 if the number of characters of this string value is greater than or equal to number 9 then execute the 10 00:00:43,710 --> 00:00:52,620 lines of code that point to actually to write in say this if statement PTEN secure random number that 11 00:00:52,920 --> 00:00:55,100 said visibility. 12 00:00:56,080 --> 00:00:56,670 OK. 13 00:00:56,730 --> 00:01:00,590 View that invisible. 14 00:01:00,630 --> 00:01:08,510 And here I am specifying that if the length of this value is greater than or equal to number 9 then 15 00:01:08,510 --> 00:01:15,790 it can actually make this are bartend these generate secure random numbers. 16 00:01:15,860 --> 00:01:16,870 In this button. 17 00:01:16,980 --> 00:01:21,220 Invisible OK so that the user cannot see this button anymore. 18 00:01:21,330 --> 00:01:28,290 If the value if the length of this value is greater than or equal to number 9 and the length of this 19 00:01:28,290 --> 00:01:33,190 value means the characters that are actually inside of these text you. 20 00:01:33,350 --> 00:01:33,840 OK. 21 00:01:33,890 --> 00:01:34,190 OK. 22 00:01:34,190 --> 00:01:42,360 Now let's actually create a string variable strange and the name of the variable is old takes the secure 23 00:01:43,440 --> 00:01:52,970 random numbers value assignment operator and then I can actually get the value of this text view. 24 00:01:53,240 --> 00:01:58,950 The x is a few random numbers that get text that are two strike. 25 00:01:59,340 --> 00:02:00,010 OK. 26 00:02:00,030 --> 00:02:06,150 As you can see I am actually getting the value of this text view and I am converting that value to us 27 00:02:06,150 --> 00:02:07,200 through value. 28 00:02:07,410 --> 00:02:13,610 And then I am assigning that value to this old to secure and secure random numbers value. 29 00:02:13,630 --> 00:02:22,230 OK so now I can actually typing in random secure number. 30 00:02:22,740 --> 00:02:23,430 OK. 31 00:02:23,600 --> 00:02:30,050 The name of the name of my variable is random secure number assignment operator. 32 00:02:30,350 --> 00:02:33,690 And then I can just refer to the name of this object. 33 00:02:33,710 --> 00:02:42,720 This secure random number object secure random number dot dot next it. 34 00:02:43,400 --> 00:02:43,820 OK. 35 00:02:43,970 --> 00:02:45,260 And it inside the. 36 00:02:45,320 --> 00:02:49,260 I can't just specify a value for example Number 5. 37 00:02:49,640 --> 00:02:54,710 And in this way this method is going to actually generate a random number between these two values. 38 00:02:54,710 --> 00:02:55,390 Number Zero. 39 00:02:55,390 --> 00:02:56,690 And number five. 40 00:02:56,690 --> 00:03:02,550 So this is going to actually generate a random number between number 0 and number five. 41 00:03:02,780 --> 00:03:08,900 OK so now let's actually output this value to large. 42 00:03:09,020 --> 00:03:13,490 So I can just typing like that. 43 00:03:14,030 --> 00:03:19,550 And then inside the apprentice's First of all I need to put him to double quotes and then I can just 44 00:03:19,550 --> 00:03:27,800 type in L or G of the capital letters come on and then I can just refer to the name of this random secure 45 00:03:27,860 --> 00:03:29,370 number avail. 46 00:03:29,840 --> 00:03:35,510 Plus two double quotes because I want to actually convert this value to us string values so that I can 47 00:03:35,510 --> 00:03:37,840 actually output those values to the like. 48 00:03:37,850 --> 00:03:42,240 OK so now let's actually run our project and see what happens. 49 00:03:42,460 --> 00:03:43,010 OK. 50 00:03:43,130 --> 00:03:48,340 As you can see here now are our application is actually running on the emulator. 51 00:03:48,380 --> 00:03:53,910 So if I click on these generate secure random numbers spotting here let's see what happens. 52 00:03:54,080 --> 00:03:55,210 OK as you can see here. 53 00:03:55,210 --> 00:04:01,380 Now this button disappears OK and this value is actually outputted into the lock. 54 00:04:01,460 --> 00:04:02,130 OK. 55 00:04:02,360 --> 00:04:08,200 So first you need to actually use the info from the slug level section here in full. 56 00:04:08,390 --> 00:04:15,230 And then here inside the search bar here you need to actually type in l o g in order to see this value 57 00:04:15,530 --> 00:04:19,770 as you can see here the random number that is generated is number 0. 58 00:04:20,050 --> 00:04:24,470 OK as I said earlier this may fit this secure random number that next. 59 00:04:24,470 --> 00:04:30,630 And 5 is going to actually generate a random number from number 0 to number five. 60 00:04:30,650 --> 00:04:36,440 So it actually so this time it actually the generated number 0 and you may wonder why this button disappeared. 61 00:04:36,440 --> 00:04:44,090 OK so first of all let me point out that inside this unclick method I specified that if the value of 62 00:04:44,090 --> 00:04:50,750 this takes the secure random numbers here this takes you is the length of this text is actually is greater 63 00:04:50,750 --> 00:04:53,260 than number nine or equal to number nine. 64 00:04:53,480 --> 00:05:00,860 Then it's going to actually make this part an invisible this BT and secure random number invisible as 65 00:05:00,860 --> 00:05:05,560 you can see now this button is invisible and we cannot do anything here. 66 00:05:05,600 --> 00:05:05,830 OK. 67 00:05:05,840 --> 00:05:10,370 Because we cannot see that button but we are going actually to solve this problem later a little bit 68 00:05:10,370 --> 00:05:18,110 later but for now I want to actually point out that this method is going to actually generate a random 69 00:05:18,110 --> 00:05:21,020 number between a number 0 to number five. 70 00:05:21,020 --> 00:05:29,390 So what should I do in order to generate a random number between number one and number five. 71 00:05:29,480 --> 00:05:33,390 So in order to solve this problem first I need to actually type in here. 72 00:05:33,650 --> 00:05:36,300 One plus. 73 00:05:36,380 --> 00:05:44,840 So in this way it's going to actually generate a random number between number one and number five. 74 00:05:44,840 --> 00:05:48,490 So let's actually run our project again and see the results. 75 00:05:48,530 --> 00:05:54,010 Ok everyone now as you can see our application is actually running on this emulator here. 76 00:05:54,050 --> 00:06:01,040 And let's actually click on the spot in here generate some huge random numbers as you can see here it 77 00:06:01,040 --> 00:06:03,200 generated this number free here. 78 00:06:03,440 --> 00:06:04,430 OK. 79 00:06:04,970 --> 00:06:08,590 And it's actually solved this problem here. 80 00:06:08,750 --> 00:06:13,820 As you can see now are are actually the button is actually disappeared and we need to actually solve 81 00:06:13,820 --> 00:06:21,550 this problem because the length of this takes view is actually more than nine characters. 82 00:06:21,890 --> 00:06:23,590 So we need to solve this problem. 83 00:06:23,810 --> 00:06:31,040 First of all let's actually create a boolean variable here inside the main activity class at the top 84 00:06:31,040 --> 00:06:32,190 of the file. 85 00:06:32,750 --> 00:06:39,420 So just typing here private boolean first time. 86 00:06:40,170 --> 00:06:40,800 OK. 87 00:06:40,820 --> 00:06:43,840 And then assign the value true to your value. 88 00:06:43,910 --> 00:06:52,670 OK so here are inside these PTEN secure random numbers that Stankovic listener inside the inside the 89 00:06:52,670 --> 00:06:53,760 unclick Mufid. 90 00:06:53,960 --> 00:06:55,910 After this line of code. 91 00:06:56,010 --> 00:06:59,080 Let's actually create inside is unclick my faith. 92 00:06:59,270 --> 00:07:03,950 And here before this line of code here let's actually create an if statement here. 93 00:07:03,950 --> 00:07:13,730 If the value of the first right first time variable is true if the value of this boolean variable is 94 00:07:13,730 --> 00:07:20,220 true OK then it's going to execute these lines of code inside of these curly braces. 95 00:07:20,230 --> 00:07:28,600 TIA the secure random numbers that said text nothing. 96 00:07:28,860 --> 00:07:29,480 OK. 97 00:07:29,830 --> 00:07:32,700 I am assigning this value OK. 98 00:07:32,730 --> 00:07:39,240 This empty value to my art to secure random numbers as you can see this is our text. 99 00:07:39,310 --> 00:07:40,040 OK. 100 00:07:40,420 --> 00:07:46,560 I am saying that if the value of this first time boolean value but is true then it's going to actually 101 00:07:47,000 --> 00:07:49,740 assign the empty value to this text. 102 00:07:49,760 --> 00:07:50,300 We are here. 103 00:07:50,320 --> 00:07:50,940 OK. 104 00:07:51,190 --> 00:07:56,740 And then it's going to actually assign the value falls to this variable. 105 00:07:56,740 --> 00:07:59,890 So let's actually run our project and see the results. 106 00:07:59,980 --> 00:08:00,630 Ok everyone. 107 00:08:00,640 --> 00:08:05,040 Now as you can see our application is actually running on this emulator. 108 00:08:05,140 --> 00:08:11,680 And now if you actually click on this generate secure random numbers let's see what happens. 109 00:08:11,890 --> 00:08:20,450 As you can see here now this value this takes the value of the which is actually gone and this value 110 00:08:20,500 --> 00:08:24,280 this number one is actually here in say that the inside the lock. 111 00:08:24,550 --> 00:08:24,790 OK. 112 00:08:24,850 --> 00:08:26,290 As you can see. 113 00:08:26,650 --> 00:08:28,860 And the problem is solved. 114 00:08:29,150 --> 00:08:33,640 OK but now I want to actually output this value. 115 00:08:33,650 --> 00:08:36,940 This random secure number to the screen. 116 00:08:37,150 --> 00:08:37,740 OK. 117 00:08:37,990 --> 00:08:47,030 So let's actually hope in here TXI the secure random numbers that said text. 118 00:08:47,050 --> 00:08:47,710 OK. 119 00:08:47,980 --> 00:08:54,380 And then in say the prentices I can just type in random number random number. 120 00:08:54,660 --> 00:08:54,960 OK. 121 00:08:54,970 --> 00:08:59,420 And then I need to convert this value to a string value. 122 00:08:59,440 --> 00:09:02,390 So now let's actually run our project and see the results. 123 00:09:02,470 --> 00:09:03,030 OK. 124 00:09:03,190 --> 00:09:06,600 Now as you can see our application is ready. 125 00:09:06,610 --> 00:09:13,240 So let's actually click on this generate secure random numbers as you can see here. 126 00:09:13,270 --> 00:09:16,290 Now the value for is outputted here. 127 00:09:16,360 --> 00:09:16,960 OK. 128 00:09:17,200 --> 00:09:29,230 So let's actually click on this button here again 2 4 1 4 2 2 free as you can see here it is actually 129 00:09:29,230 --> 00:09:35,670 generating a value between a value between number 1 and number five. 130 00:09:35,970 --> 00:09:36,650 OK. 131 00:09:36,910 --> 00:09:37,360 So this. 132 00:09:37,360 --> 00:09:41,740 So the starting value is number one and the ending value is number five. 133 00:09:41,980 --> 00:09:42,960 OK. 134 00:09:43,250 --> 00:09:47,090 You can actually test for free. 135 00:09:47,410 --> 00:09:48,100 OK. 136 00:09:48,430 --> 00:09:49,820 So hopefully that makes sense.