1 00:00:01,030 --> 00:00:08,320 I decided to assign the value of the first variable which is number 30 to my first value. 2 00:00:08,400 --> 00:00:09,140 OK. 3 00:00:09,390 --> 00:00:17,990 And in line 49 I decided to output the value of this first variable to the console. 4 00:00:18,000 --> 00:00:24,470 So as you can see here on disvalue here is the result of execution of this line of code here. 5 00:00:24,480 --> 00:00:31,360 OK and here I told the computer to output the value of their first valuable to the console. 6 00:00:31,620 --> 00:00:35,270 So as you can see here this is the value of their first value. 7 00:00:35,280 --> 00:00:36,160 OK. 8 00:00:36,570 --> 00:00:39,800 So now I want to actually change these values. 9 00:00:39,960 --> 00:00:47,980 So now I want to actually assign the incremented value of the first valuable to my second variable. 10 00:00:48,050 --> 00:00:48,670 OK. 11 00:00:48,990 --> 00:00:54,530 So I can just type in here plus operator and assignment operator. 12 00:00:54,600 --> 00:00:57,060 And then I can actually put a value here. 13 00:00:57,060 --> 00:00:58,400 For example number four. 14 00:00:58,530 --> 00:00:59,010 OK. 15 00:00:59,070 --> 00:01:07,620 So now if I run my project as you can see here the value of my second valuable and the value of my first 16 00:01:07,620 --> 00:01:09,280 variable is changed here. 17 00:01:09,300 --> 00:01:09,960 OK. 18 00:01:10,230 --> 00:01:17,370 So here I actually added four values to the value of my first variable and then I assigned the result 19 00:01:17,400 --> 00:01:20,030 of this operation here to my second value. 20 00:01:20,120 --> 00:01:20,740 OK. 21 00:01:20,970 --> 00:01:28,920 And in line 47 I actually decided to output the value of my second variable to the console which is 22 00:01:29,100 --> 00:01:29,840 54. 23 00:01:29,850 --> 00:01:30,690 OK. 24 00:01:31,050 --> 00:01:33,210 And in line forty eight. 25 00:01:33,270 --> 00:01:41,840 As you can see here again I decided to actually assign the value of the first variable to my first value. 26 00:01:41,860 --> 00:01:42,630 OK. 27 00:01:43,110 --> 00:01:46,230 So here are the value of the first variable. 28 00:01:46,290 --> 00:01:49,840 As you can see here in line 46 is changed. 29 00:01:50,160 --> 00:01:54,700 I added the four values to the value of my first variable. 30 00:01:54,780 --> 00:01:55,680 OK. 31 00:01:56,280 --> 00:02:02,650 So in line forty eight the value of the first variable is 44. 32 00:02:02,700 --> 00:02:03,290 OK. 33 00:02:03,480 --> 00:02:07,500 And I assigned this value with the value of the first variable. 34 00:02:07,560 --> 00:02:16,060 To my first variable and in line 49 I decided to output the value of their first variable to the concert. 35 00:02:16,110 --> 00:02:17,130 As you can see here. 36 00:02:17,250 --> 00:02:17,690 OK. 37 00:02:17,790 --> 00:02:20,110 So I could write this operation like this. 38 00:02:20,160 --> 00:02:27,070 First variable assignment operator first variable OK plus four. 39 00:02:27,360 --> 00:02:33,060 So as you can see here there is nothing ront to actually write your codes like this. 40 00:02:33,090 --> 00:02:33,690 OK. 41 00:02:33,940 --> 00:02:38,880 Here actually referred to an end to the name of my second variable here. 42 00:02:38,910 --> 00:02:39,350 OK. 43 00:02:39,420 --> 00:02:45,660 And here I actually decided to add four values to the value of my first variable. 44 00:02:45,660 --> 00:02:46,160 OK. 45 00:02:46,320 --> 00:02:51,220 And then the result of this operation here will be assigned to my second variable. 46 00:02:51,240 --> 00:02:51,880 OK. 47 00:02:52,030 --> 00:02:52,540 OK. 48 00:02:52,620 --> 00:02:58,180 And if I don't on my project as you can see again it's going to output this value to the console The 49 00:02:58,180 --> 00:02:59,100 Cafferty File. 50 00:02:59,220 --> 00:02:59,660 OK. 51 00:02:59,670 --> 00:03:07,590 Because I actually incremented the value of my first value by 4 in line 46 the value of the first variable 52 00:03:07,800 --> 00:03:08,630 is changed. 53 00:03:08,670 --> 00:03:11,150 OK in line forty eight. 54 00:03:11,160 --> 00:03:18,900 When I actually assign the value of the first variable to my first variable because I actually changed 55 00:03:19,230 --> 00:03:26,910 the value of the first value but in line 46 the value of the first variable is going to be the value 56 00:03:26,910 --> 00:03:28,120 of the first variable. 57 00:03:28,170 --> 00:03:28,920 OK. 58 00:03:29,370 --> 00:03:31,850 As you can see here it is number 44. 59 00:03:31,890 --> 00:03:32,500 OK. 60 00:03:32,500 --> 00:03:39,930 And in line 49 I decided to output the value of the first variable to the console as you can see here 61 00:03:39,960 --> 00:03:40,680 34. 62 00:03:40,800 --> 00:03:53,280 OK so here let me actually change this operation here to a first variable plus assignment operator and 63 00:03:53,280 --> 00:03:53,620 for. 64 00:03:53,700 --> 00:03:54,160 OK. 65 00:03:54,180 --> 00:03:59,630 So for example I can actually subtract five values from the value of the first value. 66 00:03:59,720 --> 00:04:05,840 Ok so I just need to put in minus operator and assignment operator OK. 67 00:04:05,880 --> 00:04:13,980 And then I can subtract for example 10 values from the value of the first variable and then the result 68 00:04:14,040 --> 00:04:18,170 of this operation here will be assigned to the first variable here. 69 00:04:18,210 --> 00:04:25,160 OK so now let me actually run my project and you can see this is the value of my first value. 70 00:04:25,320 --> 00:04:31,700 I actually declared I actually declared my variable in line 40. 71 00:04:31,850 --> 00:04:32,690 OK. 72 00:04:33,300 --> 00:04:40,670 And in line 44 I actually assigned a value to my value but number 40. 73 00:04:40,670 --> 00:04:40,920 OK. 74 00:04:40,920 --> 00:04:48,350 As you can see here and in line 45 I decided to output the value of the first variable to the concert. 75 00:04:48,510 --> 00:04:55,110 As you can see here this value here is the result of execution of this line of code here. 76 00:04:55,110 --> 00:04:56,030 OK. 77 00:04:56,520 --> 00:05:06,670 And in line 46 by the assigned value to my second value of an object I declared my second variable in 78 00:05:06,670 --> 00:05:08,380 line 41. 79 00:05:08,590 --> 00:05:09,290 OK. 80 00:05:09,550 --> 00:05:14,600 And then I assigned a value to my second variable in line 46. 81 00:05:14,620 --> 00:05:14,920 OK. 82 00:05:14,920 --> 00:05:22,300 As you can see here I added four values to the value of my first variable and then I assigned the value 83 00:05:22,300 --> 00:05:25,750 of this operation here to my second value. 84 00:05:25,780 --> 00:05:28,490 Ok this statement here I have this expression. 85 00:05:28,490 --> 00:05:31,280 Here is the same as this expression here. 86 00:05:31,340 --> 00:05:31,710 OK. 87 00:05:31,720 --> 00:05:37,550 It doesn't make any difference if you actually write your code like this or like this. 88 00:05:37,600 --> 00:05:38,410 OK. 89 00:05:38,840 --> 00:05:47,430 So and in line 47 I decided to output the value of my second variable to the console. 90 00:05:47,440 --> 00:05:52,600 So as you can see here in the console are disvalue is 54. 91 00:05:52,810 --> 00:05:57,370 And this value is the result of execution of this line of code here. 92 00:05:57,370 --> 00:05:57,940 OK. 93 00:05:58,150 --> 00:06:04,020 In line 47 I decided to output the value of my second valuable to the console. 94 00:06:04,100 --> 00:06:04,430 OK. 95 00:06:04,450 --> 00:06:06,650 Which is 44 as you can see here. 96 00:06:06,700 --> 00:06:07,440 OK. 97 00:06:08,020 --> 00:06:11,030 And in line forty eight. 98 00:06:11,200 --> 00:06:15,760 As you can see here I assigned a value to my first value. 99 00:06:16,060 --> 00:06:20,880 So I declared my first variable in line 42. 100 00:06:21,040 --> 00:06:21,770 OK. 101 00:06:22,180 --> 00:06:28,140 And in line forty eight I decided to actually assign a value to my first value. 102 00:06:28,360 --> 00:06:36,400 So as you can see here I subtracted 10 values from the value of the first variable and then I assigned 103 00:06:36,910 --> 00:06:41,040 the result of this operation here to my first variable. 104 00:06:41,080 --> 00:06:49,590 And then in line 49 I decided to actually output the value of the word valuable to the console. 105 00:06:49,750 --> 00:06:54,220 So as you can see here it's going to output this value to the console 24. 106 00:06:54,220 --> 00:06:57,840 So first the value of the first value bet is filthy. 107 00:06:57,850 --> 00:06:58,460 OK. 108 00:06:58,630 --> 00:06:59,750 As you can see here. 109 00:06:59,800 --> 00:07:00,580 OK. 110 00:07:00,670 --> 00:07:07,020 And in line 46 I actually added the four values to the value of the first variable. 111 00:07:07,120 --> 00:07:15,580 As you can see here and then in line 47 I decided to output the value of the second value to the console. 112 00:07:15,580 --> 00:07:16,680 So this is 34. 113 00:07:16,720 --> 00:07:17,400 OK. 114 00:07:17,980 --> 00:07:25,820 And in line forty eight I actually subtracted 10 values from the value of the first variable. 115 00:07:26,020 --> 00:07:34,000 So the value of the first variable now is 44 and I want to actually subtract 10 values from the value 116 00:07:34,000 --> 00:07:35,580 of the first value. 117 00:07:35,590 --> 00:07:40,620 OK so the fourth minus 10 is twenty four. 118 00:07:40,660 --> 00:07:41,400 OK. 119 00:07:41,650 --> 00:07:42,890 As you can see here. 120 00:07:42,940 --> 00:07:49,350 So in line 49 I decided to output the value of the first variable to the console. 121 00:07:49,510 --> 00:07:52,930 So this is the value of the first variable. 122 00:07:52,930 --> 00:07:59,050 So again let me actually create a comment that you can actually write this expression like this. 123 00:07:59,170 --> 00:08:14,880 First valuable OK assignments operator first valuable minus turn OK. 124 00:08:15,940 --> 00:08:20,650 And at the end of your statements always make sure that you put the semicolon OK. 125 00:08:20,690 --> 00:08:24,300 Otherwise the eclipse is going to actually complain. 126 00:08:24,710 --> 00:08:30,500 So as you can see let me actually explain to you what's going on here. 127 00:08:30,890 --> 00:08:36,750 So in light 40 I actually declared my first variable as you can see here. 128 00:08:36,890 --> 00:08:37,650 OK. 129 00:08:38,120 --> 00:08:48,330 And in line 41 I actually declared my second valuable and in line 42 I declared my first rowdier. 130 00:08:48,350 --> 00:08:49,230 OK. 131 00:08:49,790 --> 00:08:59,810 And in line 44 as you can see here in line 44 I decided to actually assign a value to my first value. 132 00:08:59,810 --> 00:09:00,860 But as you can see here. 133 00:09:00,860 --> 00:09:01,610 OK. 134 00:09:02,330 --> 00:09:09,940 And in line 45 I decided to output the value of my first variable to the console. 135 00:09:10,100 --> 00:09:13,470 So this is the value of my first value. 136 00:09:13,490 --> 00:09:19,140 OK this this value here is the result of execution of this line of code here. 137 00:09:19,190 --> 00:09:20,260 OK. 138 00:09:20,910 --> 00:09:29,970 So and in line 46 I decided to actually assign a value to my second value. 139 00:09:30,050 --> 00:09:30,620 OK. 140 00:09:30,800 --> 00:09:34,990 So this is how I actually assigned a value to my second value. 141 00:09:35,010 --> 00:09:42,770 But I decided to actually add four values to the value of my first variable. 142 00:09:43,160 --> 00:09:43,790 OK. 143 00:09:43,970 --> 00:09:49,900 And then I assigned the value of this operation here to my second value. 144 00:09:49,970 --> 00:09:57,560 So first I actually added four values to the value of my first value which is first which is 50 so 50 145 00:09:57,590 --> 00:10:01,970 plus four is actually 44.