1 00:00:00,510 --> 00:00:06,880 So as you can see here again I didn't instantiate this rally but I just declared this valuable here. 2 00:00:06,900 --> 00:00:07,440 OK. 3 00:00:07,530 --> 00:00:09,500 Let's actually create a constant here. 4 00:00:09,510 --> 00:00:15,990 First of all I need to actually specify the access modifier of my valuable private study. 5 00:00:16,410 --> 00:00:23,590 And here I need to specify that I want to actually create a constant by just putting the final keyword 6 00:00:23,610 --> 00:00:29,190 here and here with this strategy word means that this variable is going to be a class variable. 7 00:00:29,210 --> 00:00:37,020 Ok so whenever that I actually referred to the name of this class in another class I can directly access 8 00:00:37,020 --> 00:00:41,820 the value of this variable here because I actually put this 32 vote here. 9 00:00:41,820 --> 00:00:42,310 OK. 10 00:00:42,420 --> 00:00:44,740 The Data Type of my constant end. 11 00:00:44,940 --> 00:00:52,770 And now I need to actually keep a name to my constant number on the line of models. 12 00:00:53,150 --> 00:00:54,070 OK. 13 00:00:54,690 --> 00:00:57,540 And then I put an assignment operator here. 14 00:00:57,630 --> 00:01:05,730 So I want to actually instantiate this constant by just assigning the value 60 to my constant here and 15 00:01:05,820 --> 00:01:11,480 now I want to actually create another object of type secure random class. 16 00:01:11,520 --> 00:01:20,310 So I just need to type in here private static and finally OK the data type of My object is going to 17 00:01:20,310 --> 00:01:24,670 be of type secure random the name of my object is secure. 18 00:01:25,290 --> 00:01:28,770 Random numbers. 19 00:01:28,890 --> 00:01:29,590 OK. 20 00:01:29,720 --> 00:01:32,050 Assignment operator nil. 21 00:01:32,310 --> 00:01:33,600 Secure random. 22 00:01:33,930 --> 00:01:40,440 OK so I created an object of type secure random and this object is actually constant. 23 00:01:40,440 --> 00:01:47,530 So this means that this object is just going to actually refer to some values inside the memory. 24 00:01:47,560 --> 00:01:52,200 OK so this object is going to only refer to those values inside the memory. 25 00:01:52,440 --> 00:01:55,370 So now let's actually create a constructor here. 26 00:01:55,410 --> 00:02:03,900 So first of all I need to specify the access modifier of my constructor public and the name of my constructor 27 00:02:03,900 --> 00:02:06,760 is puzzle OK. 28 00:02:07,290 --> 00:02:13,030 And then I need to actually open and close this constructor by using these curly braces. 29 00:02:13,230 --> 00:02:15,560 As you can see here it's now shown as an error. 30 00:02:15,650 --> 00:02:21,240 OK because the name of this constructor is not the same as the name of this class. 31 00:02:21,280 --> 00:02:28,790 OK so remember you must always write your constructor names the same as your class name. 32 00:02:28,800 --> 00:02:33,090 OK so here I just need to put in a capital letter P. 33 00:02:33,300 --> 00:02:34,570 Ok puzzle. 34 00:02:34,890 --> 00:02:37,110 So now I think I see the error is gone. 35 00:02:37,110 --> 00:02:40,800 So first of all let's actually create an array of type. 36 00:02:40,800 --> 00:02:41,720 Strange. 37 00:02:42,090 --> 00:02:44,160 OK so I just need to type in here. 38 00:02:44,160 --> 00:02:45,250 Strange. 39 00:02:46,020 --> 00:02:51,640 And as you can see that the data type of my array is going to have types strange. 40 00:02:51,900 --> 00:02:57,470 And here I need to specify that I am going to actually create an array here. 41 00:02:57,480 --> 00:03:05,260 OK so I just need to put in a pair of brackets and the name of my array is companies OK. 42 00:03:05,340 --> 00:03:06,770 Assignment operator. 43 00:03:07,140 --> 00:03:13,500 And then I need to actually open and close this Auret by using these curly braces because I want to 44 00:03:13,500 --> 00:03:17,720 actually instantiate this by just assigning somebody used to this address. 45 00:03:17,740 --> 00:03:22,630 OK so the first value that I want to actually assigned to this array is Apple. 46 00:03:23,100 --> 00:03:24,460 OK come on. 47 00:03:24,600 --> 00:03:27,320 And the second value is Google comma. 48 00:03:27,390 --> 00:03:31,630 The first value is Sunni comma. 49 00:03:32,310 --> 00:03:34,530 The fourth value is Sampson 50 00:03:37,690 --> 00:03:38,350 OK. 51 00:03:38,650 --> 00:03:44,560 Comma and here the fifth value is HTC. 52 00:03:45,160 --> 00:03:51,260 OK and then I need to actually put a semi-colon at the end of my statement. 53 00:03:51,350 --> 00:03:55,880 So here again I just want to create another array of types strange. 54 00:03:56,450 --> 00:04:01,940 And here I need to specify that I want to actually create an array by using these brackets. 55 00:04:01,940 --> 00:04:10,550 OK here after my typing and now the name of my array is devices and here I want to instantiate this 56 00:04:10,640 --> 00:04:11,300 array. 57 00:04:11,660 --> 00:04:18,820 So the first value that I want to assign to this array is experience that set free. 58 00:04:18,850 --> 00:04:20,960 OK come on. 59 00:04:21,890 --> 00:04:32,360 And the second value is iPhone 6 come up again put into double quotes here and here. 60 00:04:32,360 --> 00:04:34,570 I just need to type in typing in Galaxy 61 00:04:39,230 --> 00:04:48,320 8 comma and two double quotes here and instead of double quotes again I can just type in Galaxy Note 62 00:04:49,160 --> 00:04:50,470 10. 63 00:04:51,380 --> 00:04:56,070 OK come on again I want to actually assign another value to this array. 64 00:04:56,180 --> 00:05:02,000 And here inside it will cause again just typing an iPod Touch. 65 00:05:02,820 --> 00:05:07,060 OK comma HTC nine. 66 00:05:11,340 --> 00:05:16,230 Come to experience that five. 67 00:05:16,450 --> 00:05:20,070 OK come on iPod Nano. 68 00:05:20,270 --> 00:05:20,950 OK. 69 00:05:21,170 --> 00:05:24,070 Come on Expedia. 70 00:05:24,170 --> 00:05:24,950 Come on. 71 00:05:24,950 --> 00:05:27,050 Galaxy 6. 72 00:05:28,090 --> 00:05:30,680 Ok come on up next Suze. 73 00:05:30,710 --> 00:05:32,110 Five. 74 00:05:32,380 --> 00:05:33,300 Come on. 75 00:05:33,350 --> 00:05:34,710 Nexus 10. 76 00:05:36,950 --> 00:05:41,120 OK so now let's actually put in a semicolon at the end of our statement. 77 00:05:41,420 --> 00:05:42,110 OK. 78 00:05:42,380 --> 00:05:42,900 OK. 79 00:05:42,950 --> 00:05:49,380 Now let's actually instantiate this company and devices array here inside of this constructor. 80 00:05:49,490 --> 00:05:55,580 So I just need to type in here companies and devices assignment operator new. 81 00:05:55,980 --> 00:05:56,630 OK. 82 00:05:56,960 --> 00:06:03,760 And again I need to refer to the name of this company and devices class company and device. 83 00:06:03,800 --> 00:06:04,420 OK. 84 00:06:04,460 --> 00:06:11,210 And here inside of these brackets I need to actually specify the size of this array so the size of this 85 00:06:11,210 --> 00:06:13,370 area is number of models. 86 00:06:13,390 --> 00:06:14,260 OK 60. 87 00:06:14,390 --> 00:06:19,090 So here I just need to refer to the name of that constant number of models. 88 00:06:19,100 --> 00:06:19,600 OK. 89 00:06:19,760 --> 00:06:23,560 And here I need to put in a semi-colon at the end of my statement. 90 00:06:23,570 --> 00:06:30,950 So now I want to actually give a value to this kind of device model here inside of the constructor current 91 00:06:31,070 --> 00:06:35,000 device model assignment operator zero. 92 00:06:35,000 --> 00:06:42,520 Now let's actually create a for loop here instead of this constructor for an inside Apprentice's. 93 00:06:42,650 --> 00:06:51,350 Let's actually create a variable of type integer and the name of my variable is index 0 semi-colon. 94 00:06:51,890 --> 00:07:00,750 And here I need to actually create a condition index less than companies and devices. 95 00:07:00,830 --> 00:07:02,320 OK Len. 96 00:07:03,010 --> 00:07:03,530 OK. 97 00:07:03,710 --> 00:07:10,340 So this loop is going to be executed up until the value of this index variable is less than the value 98 00:07:10,340 --> 00:07:13,010 of the length of this company and devices. 99 00:07:13,330 --> 00:07:13,990 OK. 100 00:07:14,390 --> 00:07:19,270 So here again I can just type in index plus plus. 101 00:07:19,340 --> 00:07:24,590 So after each execution of this for loop the value of this index variable is going to be incremented 102 00:07:24,590 --> 00:07:25,280 by 1. 103 00:07:25,490 --> 00:07:26,460 OK. 104 00:07:27,230 --> 00:07:34,690 So now instead of this for loop I want to actually give some values to this company and devices. 105 00:07:34,710 --> 00:07:42,240 So as you can see here in line 24 we actually specify that the size of these Aure is 60 OK. 106 00:07:42,440 --> 00:07:49,330 And that means that this area is going to accept 60 of values of type company and device class. 107 00:07:49,450 --> 00:07:50,010 OK. 108 00:07:50,210 --> 00:07:52,930 And we just specified the size of this. 109 00:07:53,120 --> 00:07:56,420 Now you want to actually give values to this disobey. 110 00:07:56,540 --> 00:08:02,430 So in order to give values to this are a I just need to refer to the name of this great company on devices. 111 00:08:02,570 --> 00:08:03,090 Okay. 112 00:08:03,200 --> 00:08:11,000 And I need to actually put in a pair of brackets after my array name here and inside of the brackets 113 00:08:11,090 --> 00:08:14,630 I need to actually refer to the name of this index variable here. 114 00:08:14,910 --> 00:08:15,510 OK. 115 00:08:15,740 --> 00:08:17,950 Assignment operator new. 116 00:08:18,040 --> 00:08:25,970 I would like to actually instantiate this Arey by actually assigning values of type company and device 117 00:08:25,970 --> 00:08:31,670 class as you can see he had company in the works class and I have to actually instantiate is Arey by 118 00:08:31,670 --> 00:08:35,730 actually creating values of type company and device class Soviet. 119 00:08:35,750 --> 00:08:38,280 We just need to actually put in the new keyboard here. 120 00:08:38,420 --> 00:08:39,050 OK. 121 00:08:39,320 --> 00:08:43,020 And here I need to refer to the name of this class company and device. 122 00:08:43,400 --> 00:08:49,340 And here we need to actually specify two values for this constructor OK. 123 00:08:49,340 --> 00:08:55,880 So as you can see here now the constructor of this class is actually going to be called ok because we 124 00:08:55,880 --> 00:08:58,890 are actually instantiating this arii. 125 00:08:58,990 --> 00:09:04,980 OK it is the indexes of this Arey by creating objects of type company and device. 126 00:09:05,000 --> 00:09:11,350 So when ever you actually create an object of type A company and device the constructor that is actually 127 00:09:11,360 --> 00:09:13,320 inside of this class is going to be called. 128 00:09:13,360 --> 00:09:20,360 OK so that's what you need to actually specify some values here for this constructor company and device 129 00:09:20,420 --> 00:09:22,340 and inside the apprentice's. 130 00:09:22,430 --> 00:09:28,670 First of all we need to actually specify the company name and second of all we need to actually specify 131 00:09:28,670 --> 00:09:29,880 the company device. 132 00:09:30,110 --> 00:09:32,000 So inside the puzzle class. 133 00:09:32,030 --> 00:09:38,210 So now for the constructor of this company and device class as you can see here we are now going to 134 00:09:38,210 --> 00:09:41,820 actually create some company and device objects. 135 00:09:41,860 --> 00:09:43,270 OK from this class. 136 00:09:43,520 --> 00:09:44,100 OK. 137 00:09:44,300 --> 00:09:49,030 And then you want to actually assign those objects to these. 138 00:09:49,090 --> 00:09:51,400 These are a company and devices. 139 00:09:51,410 --> 00:09:51,880 OK. 140 00:09:52,070 --> 00:09:57,350 This is the area that we actually declared in line 12 here inside of this puzzle class. 141 00:09:57,570 --> 00:09:58,010 OK.