1 00:00:00,950 --> 00:00:03,950 The next primitive data type is like. 2 00:00:04,230 --> 00:00:07,910 And here I need to actually give this variable a name. 3 00:00:08,070 --> 00:00:10,840 For example land value. 4 00:00:11,300 --> 00:00:12,260 OK. 5 00:00:12,750 --> 00:00:15,840 And then I'm going to actually assign a value to this variable. 6 00:00:15,850 --> 00:00:16,620 OK. 7 00:00:16,980 --> 00:00:24,060 Disvalue is actually a very large value and it's now showing me an error and it says this value is out 8 00:00:24,060 --> 00:00:24,480 of range. 9 00:00:24,480 --> 00:00:25,540 OK. 10 00:00:25,740 --> 00:00:32,990 So as you can see here this long data type only hold of value between these two numbers. 11 00:00:33,000 --> 00:00:33,510 OK. 12 00:00:33,540 --> 00:00:40,380 You can not actually exceed the maximum value that they can assign to this variable. 13 00:00:40,380 --> 00:00:44,440 Now what out the value of this variable for the console. 14 00:00:44,670 --> 00:00:47,540 So just like in here system that's out of insulin. 15 00:00:47,760 --> 00:00:52,650 And then inside the practices I just need to refer to the name of the variable and at the end of my 16 00:00:52,650 --> 00:00:59,040 statement I just need to put in a semicolon and here or I forgot to actually comment out this line of 17 00:00:59,040 --> 00:01:00,060 code here. 18 00:01:00,330 --> 00:01:05,540 And if I run my project again it's gonna output the value of this variable to the console. 19 00:01:05,550 --> 00:01:06,510 OK. 20 00:01:06,630 --> 00:01:15,240 Now I want to actually talk about the autocomplete feature of the eclipse ID and this feature helps 21 00:01:15,240 --> 00:01:17,090 you to write your code faster. 22 00:01:17,130 --> 00:01:17,900 OK. 23 00:01:18,120 --> 00:01:24,630 So now if you want to refer to the name of the last rowdier bell as you can see I just need to actually 24 00:01:24,990 --> 00:01:29,880 press the control and space key on my keyboard at the same time. 25 00:01:29,970 --> 00:01:31,010 OK. 26 00:01:31,320 --> 00:01:38,970 So for example I just type in here l or and and then control plus space and then it's going to show 27 00:01:38,970 --> 00:01:42,990 me some recommendations which I can choose the name of that variable. 28 00:01:42,990 --> 00:01:43,840 OK. 29 00:01:44,430 --> 00:01:48,270 So that's it for the autocomplete feature of Eclipse. 30 00:01:48,270 --> 00:01:51,440 The next primitive data type is flawed. 31 00:01:51,570 --> 00:01:52,430 OK. 32 00:01:52,650 --> 00:01:58,410 So as you can see here I just need to specify the Data Type of my variable which is bloats the name 33 00:01:58,410 --> 00:02:05,570 of my variable would be float decimal number and I assign a value to my body. 34 00:02:05,580 --> 00:02:07,680 But as you can see here three point. 35 00:02:07,810 --> 00:02:08,520 OK. 36 00:02:08,730 --> 00:02:10,820 So as I said earlier in this tutorial. 37 00:02:10,890 --> 00:02:17,670 Float data type is a single precision relative to its floating point and it can hold a value between 38 00:02:17,670 --> 00:02:18,520 these two numbers. 39 00:02:18,540 --> 00:02:19,350 OK. 40 00:02:19,590 --> 00:02:23,700 Floating point numbers are numbers with a decimal point. 41 00:02:23,700 --> 00:02:24,360 OK. 42 00:02:24,480 --> 00:02:26,930 So as you can see here it's now showing an error. 43 00:02:27,060 --> 00:02:34,060 So if I actually hover over the error area it says Type Mismatch cannot convert from double to float. 44 00:02:34,080 --> 00:02:34,710 OK. 45 00:02:34,830 --> 00:02:40,020 And here we need to add the letter F at the end of our value. 46 00:02:40,020 --> 00:02:46,540 OK so in this way we are actually making this value of float value. 47 00:02:46,620 --> 00:02:52,860 Otherwise the eclipse assumes that we are actually assigning a double value to our variable. 48 00:02:53,150 --> 00:02:57,170 Ok so that's the reason that it's now showing us an error. 49 00:02:57,360 --> 00:03:05,360 So we must add the letter F at the end of our value in order to make this value of load value. 50 00:03:05,400 --> 00:03:11,690 OK so this is a very important point about bloats data type. 51 00:03:11,730 --> 00:03:12,200 OK. 52 00:03:12,240 --> 00:03:16,740 So if I add the letter F at the end of my value here as you can see the error is now gone. 53 00:03:16,890 --> 00:03:23,370 And if I for example want to output the value of this variable to the console as you can see here I 54 00:03:23,370 --> 00:03:29,410 just need to type in here system data out that princeling and then inside Apprentice's. 55 00:03:29,520 --> 00:03:33,570 I just need to put in the name of the variable here. 56 00:03:33,930 --> 00:03:34,290 OK. 57 00:03:34,290 --> 00:03:38,740 And at the end I just need to put the semi-colon at the end of my statement. 58 00:03:38,980 --> 00:03:44,950 And if I run my projects now it outputs the value of this variable to the console. 59 00:03:45,060 --> 00:03:47,750 So let me comment out this line of code here. 60 00:03:48,240 --> 00:03:54,710 And if I run my project again as you can see this is the value of my offloads the small number ready. 61 00:03:54,750 --> 00:03:55,310 OK. 62 00:03:56,310 --> 00:03:58,840 The next primitive data type is double. 63 00:03:58,860 --> 00:03:59,410 OK. 64 00:03:59,580 --> 00:04:01,530 Double data type is like float. 65 00:04:01,680 --> 00:04:02,360 OK. 66 00:04:02,580 --> 00:04:10,590 So the name of my variable would be double decimal number and I assign a value to my body here. 67 00:04:10,630 --> 00:04:16,070 OK so at the end I need to add the semicolon here. 68 00:04:16,290 --> 00:04:20,210 And as you can see here the data type of my variable is Stobart. 69 00:04:20,240 --> 00:04:20,920 OK. 70 00:04:20,970 --> 00:04:27,770 And as I said earlier in the story all double data type is a double precision 64 with floating point. 71 00:04:27,900 --> 00:04:31,190 And it can hold a value between these two numbers. 72 00:04:31,200 --> 00:04:31,800 OK. 73 00:04:32,040 --> 00:04:38,160 So double data type can be used for more precise numbers as you can see here. 74 00:04:38,160 --> 00:04:38,950 OK. 75 00:04:39,240 --> 00:04:43,940 So now I want to actually output the value of this variable to the console. 76 00:04:43,950 --> 00:04:50,310 So just like in here system that out that insulin and that inside the apprentice's just referred to 77 00:04:50,310 --> 00:04:51,700 the name of that variable. 78 00:04:51,720 --> 00:04:52,130 OK. 79 00:04:52,140 --> 00:04:53,410 Double the small number. 80 00:04:53,640 --> 00:04:58,510 And at the end of your statement just put up a semicolon and then run your project. 81 00:04:58,530 --> 00:05:03,630 Now as you can see here it's going to output the value of this variable to the console. 82 00:05:03,690 --> 00:05:07,580 OK so the next primitive data type is called. 83 00:05:07,620 --> 00:05:11,540 OK you can call it charge what I prepared to call it cost. 84 00:05:11,610 --> 00:05:12,370 OK. 85 00:05:12,600 --> 00:05:19,470 The name of the variable would be character and I'm going to assign a value to my variable as you can 86 00:05:19,470 --> 00:05:20,260 see here. 87 00:05:20,400 --> 00:05:20,840 OK. 88 00:05:20,850 --> 00:05:27,320 For assigning values to car or chart variables we use single quotation marks. 89 00:05:27,350 --> 00:05:37,290 OK earlier NDC Tauriel cartilages has had 16 bits and car data type is used for individual characters 90 00:05:37,350 --> 00:05:41,240 such as the letters numbers punctuation and other symbols. 91 00:05:41,250 --> 00:05:42,120 OK. 92 00:05:42,390 --> 00:05:46,820 Now I want to actually output the value of this variable to the console. 93 00:05:47,010 --> 00:05:52,330 So I just need to type in her system that out that princeling and inside the parenthesis just refer 94 00:05:52,330 --> 00:05:53,760 to the name of that variable. 95 00:05:53,880 --> 00:06:00,810 And if I run my projects now as you can see it outputs the value of this valuable to the console. 96 00:06:00,860 --> 00:06:05,830 OK now I want to assign another value to this variable here. 97 00:06:05,910 --> 00:06:12,180 OK so I just need to refer to the name of that variable and then I need to actually assign a value to 98 00:06:12,180 --> 00:06:13,240 my variable here. 99 00:06:13,250 --> 00:06:20,110 OK so now if I actually output the value of this variable to the console. 100 00:06:20,320 --> 00:06:21,650 OK let's see what happens. 101 00:06:21,660 --> 00:06:22,360 OK. 102 00:06:22,740 --> 00:06:25,710 So here I just need to refer to the name of this variable. 103 00:06:26,070 --> 00:06:29,820 And at the end I put a semicolon OK at the end of your statement. 104 00:06:29,820 --> 00:06:34,690 So now I run my project as you can see the first value is this symbol. 105 00:06:34,710 --> 00:06:35,580 OK. 106 00:06:35,970 --> 00:06:39,820 And the second value as you can see here these dots here. 107 00:06:39,990 --> 00:06:43,920 This is the last value that I assigned to my variable. 108 00:06:44,030 --> 00:06:44,660 OK. 109 00:06:45,590 --> 00:06:48,180 So let me actually show you another example. 110 00:06:48,430 --> 00:06:54,640 So if I want to actually add another value to my valuable for example something like this why do you 111 00:06:54,650 --> 00:06:58,560 if you want to output the value of this variable to the consul here. 112 00:06:58,870 --> 00:07:01,220 OK let's see what happens again. 113 00:07:01,560 --> 00:07:04,630 And at the end of your statement just put a semi-colon. 114 00:07:04,630 --> 00:07:05,260 OK. 115 00:07:05,500 --> 00:07:13,260 And then run your project as you can see the last value is this value that I assign to my variable here. 116 00:07:13,350 --> 00:07:13,880 OK. 117 00:07:13,990 --> 00:07:18,690 So this is a very important point about assigning values to variables. 118 00:07:18,740 --> 00:07:24,820 OK so let me now actually again output the value of this character variable to the console and let's 119 00:07:24,820 --> 00:07:25,890 see what happens. 120 00:07:26,050 --> 00:07:32,330 System that out that princeling and then inside Apprentice's just referred to the name of this variable. 121 00:07:32,470 --> 00:07:34,420 And at the end with a semicolon. 122 00:07:34,480 --> 00:07:41,510 So as you can see here again it actually outputs this last value that I assigned to this variable. 123 00:07:41,560 --> 00:07:42,210 OK. 124 00:07:42,520 --> 00:07:50,280 So the last value that you assign to your variable is consistent throughout the lifetime of your variable. 125 00:07:50,310 --> 00:07:51,760 In your application. 126 00:07:51,890 --> 00:07:52,700 OK. 127 00:07:53,020 --> 00:07:58,930 So this is a very important point that you should always consider about assigning values to variables. 128 00:07:59,170 --> 00:08:03,090 And now let me give you another example about this concept. 129 00:08:03,100 --> 00:08:03,700 OK. 130 00:08:03,970 --> 00:08:09,710 So now if you want to for example assign another value to this lady here. 131 00:08:09,880 --> 00:08:12,570 Ok for example this ampersand symbol. 132 00:08:12,640 --> 00:08:13,570 OK. 133 00:08:13,600 --> 00:08:17,680 So here I want to actually output the value of this variable to the console. 134 00:08:17,710 --> 00:08:18,350 OK. 135 00:08:18,550 --> 00:08:23,920 So just typing system that out that that print line and then inside the Prentice's just referred to 136 00:08:23,920 --> 00:08:25,140 the name of the variable. 137 00:08:25,220 --> 00:08:28,230 Here I use the autocomplete feature of the eclipse. 138 00:08:28,480 --> 00:08:35,020 And at the end just with a semi-colon and run your project as you can see here the last value here is 139 00:08:35,020 --> 00:08:38,750 the value that I assign to this value here. 140 00:08:38,770 --> 00:08:42,360 OK this is the last value that we assigned to this value. 141 00:08:42,430 --> 00:08:45,040 So the next primitive data type is Boulia. 142 00:08:45,190 --> 00:08:45,490 OK. 143 00:08:45,490 --> 00:08:51,080 As I said earlier this data type only holds either true or false values. 144 00:08:51,280 --> 00:08:54,160 The name of the variable with B is ok. 145 00:08:54,370 --> 00:08:57,340 I assign the value true to my variable here. 146 00:08:57,370 --> 00:08:57,830 OK. 147 00:08:57,850 --> 00:09:03,560 So as you can see boolean data type are these data type only holds are either true or false. 148 00:09:03,610 --> 00:09:12,640 Ok so here I want to output the value of this variable to the console A-J system that's out that pre-incident 149 00:09:12,870 --> 00:09:16,680 handed inside the apprentice's just referred to the name of this variable is. 150 00:09:16,720 --> 00:09:17,360 OK. 151 00:09:17,440 --> 00:09:18,010 OK. 152 00:09:18,280 --> 00:09:21,610 So first let's actually comment how these lines of code. 153 00:09:21,640 --> 00:09:23,870 Because I don't want to execute them. 154 00:09:24,190 --> 00:09:24,920 OK. 155 00:09:25,540 --> 00:09:31,440 So here I run my project as you can see it outputs the value true to the console. 156 00:09:31,450 --> 00:09:32,510 OK. 157 00:09:32,830 --> 00:09:37,240 Let me actually assign another value to this variable here. 158 00:09:37,900 --> 00:09:42,860 So now I assign Faas as the value of this variable here. 159 00:09:42,880 --> 00:09:43,510 OK. 160 00:09:43,630 --> 00:09:50,420 So now I want to actually output the value of this variable to the console system that out that to. 161 00:09:50,680 --> 00:09:56,680 And then inside Apprentice's just referred to the name of this variable and put a semicolon at the end 162 00:09:56,680 --> 00:09:59,770 of your statement and run your project as you can see.