1 00:00:00,210 --> 00:00:08,510 And see x files and files no that's checked again. 2 00:00:08,520 --> 00:00:13,510 I need to put in a pair of hands like it's here again I need to put in a pair of round brackets here 3 00:00:14,040 --> 00:00:23,480 not false and false questionmark true otherwise false. 4 00:00:23,730 --> 00:00:30,750 So here as you can see I am saying that if the value of these false and false variable is actually false 5 00:00:31,080 --> 00:00:33,260 then assign the value true to this. 6 00:00:33,290 --> 00:00:34,560 So check the method. 7 00:00:34,900 --> 00:00:38,020 Otherwise assign the value falls to the Sitrick. 8 00:00:38,060 --> 00:00:44,580 OK so if the value of this are false and false valuable is actually true it's going to actually assign 9 00:00:44,580 --> 00:00:46,220 the value false to this. 10 00:00:46,220 --> 00:00:46,950 So check if. 11 00:00:46,970 --> 00:00:53,430 OK because I am because here I am specifying that if the value of this false and false value above is 12 00:00:53,460 --> 00:00:56,680 false then assigned the value true to this. 13 00:00:56,690 --> 00:01:03,510 So check it and if the value of this false and false variable is not false. 14 00:01:03,600 --> 00:01:06,510 So it is true then assigned a value false to this. 15 00:01:06,530 --> 00:01:07,720 So check my friend. 16 00:01:08,100 --> 00:01:08,730 OK. 17 00:01:08,880 --> 00:01:10,450 So hopefully that makes sense. 18 00:01:10,590 --> 00:01:14,600 And let's actually run our project again and see the results. 19 00:01:14,610 --> 00:01:21,030 So as you can see here again the value of this false and false Suadi about is actually false. 20 00:01:21,050 --> 00:01:21,390 OK. 21 00:01:21,420 --> 00:01:21,810 No. 22 00:01:21,840 --> 00:01:23,270 Let me explain again. 23 00:01:23,280 --> 00:01:29,220 First of all here as you can see we specified that if the value of this false and false variable is 24 00:01:29,220 --> 00:01:32,970 actually true then assign the value true to this. 25 00:01:32,970 --> 00:01:37,550 I said check if it is related to this component to this checkbox. 26 00:01:37,650 --> 00:01:42,970 Otherwise assign the value of false to these are components to this check box here. 27 00:01:43,050 --> 00:01:43,530 OK. 28 00:01:43,650 --> 00:01:47,040 As you can see the value of this tick box is actually false. 29 00:01:47,100 --> 00:01:55,080 OK and if here and here I specified that if the value of this false and false value is actually false 30 00:01:55,470 --> 00:02:02,130 then assign the value true to this or checkbox as you can see the value of the tick box is now true. 31 00:02:02,360 --> 00:02:02,670 OK. 32 00:02:02,680 --> 00:02:05,630 Otherwise assign the value false to this. 33 00:02:05,640 --> 00:02:06,970 So check the method. 34 00:02:07,390 --> 00:02:13,620 Ok so because the value of this false and false where the above is actually false then it is actually 35 00:02:13,620 --> 00:02:16,210 assigning the value of true to this check box here. 36 00:02:16,230 --> 00:02:18,210 So this tick box is actually on. 37 00:02:18,210 --> 00:02:20,020 So hopefully that makes sense. 38 00:02:20,400 --> 00:02:23,010 And let's actually go back and say these are. 39 00:02:23,070 --> 00:02:24,930 Underline may not mean that x. 40 00:02:25,230 --> 00:02:31,870 And then there's actually again dragging and other linearly out horizontal into this linearly outward 41 00:02:31,930 --> 00:02:39,060 circle and then it's actually dragging and other large takes you into this linear lay out a horizontal 42 00:02:39,150 --> 00:02:41,540 and double click on this large text view. 43 00:02:41,940 --> 00:02:48,830 And here just typing in true or true OK. 44 00:02:49,190 --> 00:02:52,230 And then it's actually dragging a checkbox here. 45 00:02:52,340 --> 00:02:59,110 And double click on the checkbox so for the text of this checkbox just type in here yes. 46 00:02:59,270 --> 00:03:05,530 And for the idea of the checkbox to save in here see X true or true. 47 00:03:05,960 --> 00:03:07,110 Yes. 48 00:03:08,030 --> 00:03:08,930 OK. 49 00:03:09,440 --> 00:03:16,250 And let's actually dragon another checkbox into this linearly and horizontal double click on this checkbox 50 00:03:16,550 --> 00:03:18,150 for the text for the text. 51 00:03:18,170 --> 00:03:19,350 Just type in no. 52 00:03:19,640 --> 00:03:27,460 And for the ID just type in here see X X true or true no. 53 00:03:28,100 --> 00:03:32,050 OK so the ID of this checkbox is z x. 54 00:03:32,060 --> 00:03:33,670 True or true yes. 55 00:03:33,800 --> 00:03:39,100 And the idea of this trick works is C H x true or true no. 56 00:03:39,170 --> 00:03:45,490 And let's actually click on this linearly out and then check this center underline horizontal checkbox. 57 00:03:45,590 --> 00:03:46,170 OK. 58 00:03:46,220 --> 00:03:53,150 Now let's actually go back inside this main activity that double file here and then let's actually scroll 59 00:03:53,150 --> 00:03:58,590 to the top of the screen and here let's actually create a comment OK. 60 00:03:58,640 --> 00:04:01,500 True or true. 61 00:04:01,760 --> 00:04:09,400 And this actually creates a checkbox object C H x true or true. 62 00:04:09,890 --> 00:04:10,630 Yes. 63 00:04:10,880 --> 00:04:15,920 And then let's actually put in an assignment operator here checkbox. 64 00:04:16,730 --> 00:04:24,580 Find view by ID or thought Id dot dot see X true. 65 00:04:25,060 --> 00:04:28,180 All true yes. 66 00:04:28,910 --> 00:04:29,750 OK. 67 00:04:30,200 --> 00:04:39,310 Again let's actually create another checkbox see X true true no. 68 00:04:40,000 --> 00:04:45,910 And then let's put in an assignment operator here and then there's actually a cast this object to a 69 00:04:45,910 --> 00:04:56,450 checkbox object find you by ID are that Id dot C edge X true all true no. 70 00:04:56,530 --> 00:05:03,550 And then let's actually scroll down the screen here and here let's actually create a comment true or 71 00:05:04,450 --> 00:05:05,500 true. 72 00:05:06,160 --> 00:05:15,070 And here let's actually create a boolean variable boolean and the name of Aradia is true or true. 73 00:05:15,430 --> 00:05:21,840 Assignment operator and here I want to actually assign a boolean expression to a variable. 74 00:05:21,850 --> 00:05:29,400 So let's actually put in a pair of brackets here so I can just type in true or as you can see of we 75 00:05:29,410 --> 00:05:33,660 actually show the OR operator by using these two symbols. 76 00:05:33,670 --> 00:05:40,740 So in order to actually create this symbol you just need to hold the shift key and then present back 77 00:05:40,740 --> 00:05:42,340 for a slash key on your keyboard. 78 00:05:42,340 --> 00:05:43,030 OK. 79 00:05:43,360 --> 00:05:49,630 In order to create these symbols you need to actually hold the shift key and then press on the back 80 00:05:49,620 --> 00:05:51,770 for the slash key on your keyboard. 81 00:05:51,900 --> 00:05:52,450 OK. 82 00:05:52,570 --> 00:05:53,260 So true. 83 00:05:53,300 --> 00:05:55,900 All true. 84 00:05:56,450 --> 00:05:57,040 OK. 85 00:05:58,300 --> 00:06:01,480 So here let's actually create an if statement. 86 00:06:01,690 --> 00:06:07,340 If the value of this are true or true valuable is actually true. 87 00:06:07,450 --> 00:06:15,150 If the value of this true or true valuable is true then execute this line of code here is x true or 88 00:06:15,320 --> 00:06:15,960 true. 89 00:06:16,150 --> 00:06:16,730 Yes. 90 00:06:16,810 --> 00:06:28,410 That said check checked true ok otherwise else if not true or true. 91 00:06:28,850 --> 00:06:31,860 And this means if the value of this. 92 00:06:31,870 --> 00:06:34,820 True or true valuable is false. 93 00:06:35,100 --> 00:06:37,580 Ok then execute this line of code here. 94 00:06:37,580 --> 00:06:42,110 Inside of these of these curly braces OK. 95 00:06:42,170 --> 00:06:42,860 True or true. 96 00:06:42,860 --> 00:06:45,050 No that said check it. 97 00:06:45,140 --> 00:06:45,820 True. 98 00:06:48,040 --> 00:06:48,700 OK. 99 00:06:48,780 --> 00:06:50,650 So hopefully that makes sense. 100 00:06:50,670 --> 00:06:56,520 First of all we actually created a boolean variable and we gave a name to this boolean value. 101 00:06:56,580 --> 00:06:59,750 As you can see the name of this variable is true or true. 102 00:07:00,240 --> 00:07:04,790 And we assigned this expression to our variable our true or true. 103 00:07:05,100 --> 00:07:10,590 And the result of this expression is going to be assigned to this valuable if the value of this true 104 00:07:10,650 --> 00:07:12,770 or true variable is true. 105 00:07:13,110 --> 00:07:13,600 OK. 106 00:07:13,740 --> 00:07:19,590 Then it's going I should execute this line of code here see X true or true yes that's a check through 107 00:07:20,300 --> 00:07:21,720 and otherwise else. 108 00:07:21,780 --> 00:07:28,530 If the value of these are true or true value is actually Phonse then it's going to try to execute this 109 00:07:28,530 --> 00:07:29,480 line of code here. 110 00:07:29,610 --> 00:07:30,270 OK. 111 00:07:30,600 --> 00:07:33,770 So let's actually run our project and see what happens. 112 00:07:33,810 --> 00:07:34,350 OK. 113 00:07:34,500 --> 00:07:40,850 As you can see now the value of this are true or true variable is actually true of this tick box is 114 00:07:40,860 --> 00:07:42,730 actually on as you can see. 115 00:07:42,730 --> 00:07:47,880 At first we specified that if the value of this true or true variable is true then it's going I should 116 00:07:47,960 --> 00:07:49,640 say cute this line of code here. 117 00:07:49,820 --> 00:07:50,310 OK. 118 00:07:50,460 --> 00:07:52,370 See as true or true yes. 119 00:07:52,380 --> 00:07:55,390 So this component is related to this object. 120 00:07:55,560 --> 00:07:59,610 That said check it to suit the value of this check box is actually true. 121 00:07:59,760 --> 00:08:05,760 So this actually our comment out this if else statement here because I want to show you another way 122 00:08:06,510 --> 00:08:14,090 of actually writing these statements see it as true or true. 123 00:08:14,310 --> 00:08:15,100 Yes. 124 00:08:15,190 --> 00:08:19,180 That said checked and then is actually putting up at around bracket's. 125 00:08:19,200 --> 00:08:25,350 So true or true here I am actually referring to the name of this variable. 126 00:08:25,380 --> 00:08:28,220 True or true questionmark true. 127 00:08:28,560 --> 00:08:34,890 If the value of this truly truly valuable is actually true then assign the value true to this said Chicot 128 00:08:34,890 --> 00:08:35,320 method. 129 00:08:35,350 --> 00:08:36,730 Otherwise false. 130 00:08:36,750 --> 00:08:43,290 And if the value of this true or true value bet is actually false then assign the value false to this 131 00:08:43,290 --> 00:08:43,770 value. 132 00:08:43,810 --> 00:08:44,300 OK. 133 00:08:44,550 --> 00:08:50,210 And this actually creates another line of code C.H. X true or true. 134 00:08:50,460 --> 00:08:53,720 No that said check it. 135 00:08:54,270 --> 00:08:57,210 And let's actually put in a pair of round brackets here. 136 00:08:58,510 --> 00:09:10,100 True or true no true or true questionmark true otherwise false. 137 00:09:10,960 --> 00:09:12,830 Ok so if the value of this. 138 00:09:12,880 --> 00:09:15,760 So here I need to put in an exclamation mark here. 139 00:09:15,910 --> 00:09:23,800 So true or true if the value of this true or true value is actually false questionmark true which a 140 00:09:23,890 --> 00:09:25,580 otherwise false. 141 00:09:25,720 --> 00:09:33,010 And here I am saying that if the value of these are true or true value is actually false then assign 142 00:09:33,010 --> 00:09:40,240 the value true to this asset checked my faith that is related to this see is x true or true no object. 143 00:09:40,340 --> 00:09:43,730 Otherwise assigned the value false to the check box OK. 144 00:09:43,750 --> 00:09:50,980 If the value of this true or true value above is actually true assign the value funds to this checkbox. 145 00:09:51,250 --> 00:09:52,940 So hopefully that makes sense. 146 00:09:53,050 --> 00:09:57,050 And let's actually run our project again in order to see the results.