1 00:00:00,300 --> 00:00:05,100 So here inside the main method I need to refer to the name of my method here. 2 00:00:05,100 --> 00:00:05,590 OK. 3 00:00:05,640 --> 00:00:06,830 Multiply two numbers. 4 00:00:06,870 --> 00:00:13,340 And now if I run on my project as you can see this is the result of multiplication of these two numbers. 5 00:00:13,360 --> 00:00:13,830 OK. 6 00:00:13,920 --> 00:00:18,210 So first then the project runs it can actually execute this main method. 7 00:00:18,210 --> 00:00:18,900 OK. 8 00:00:18,900 --> 00:00:24,350 And then inside the main method I am calling this multiply two numbers Smurfit. 9 00:00:24,480 --> 00:00:30,330 So it's going to actually go inside these multiply two numbers Smurfit and then it's going to execute 10 00:00:30,630 --> 00:00:31,860 these statements here. 11 00:00:31,860 --> 00:00:32,300 OK. 12 00:00:32,370 --> 00:00:36,580 So that's the result of execution of this line of code here. 13 00:00:36,680 --> 00:00:40,360 OK to multiply it by six is 12. 14 00:00:40,410 --> 00:00:42,720 So now let me show you another example. 15 00:00:42,930 --> 00:00:49,110 So first let me actually comment out this line of code here because I don't want to execute it. 16 00:00:49,170 --> 00:00:52,080 So here I want to create another method. 17 00:00:52,170 --> 00:00:57,850 So first I need to put this strategy for static. 18 00:00:58,050 --> 00:01:01,860 And this time my Millford is going to return an integer value. 19 00:01:01,870 --> 00:01:11,340 OK so the return type of mime if it is end and the name of my method is add two numbers together add 20 00:01:12,060 --> 00:01:16,200 two numbers together. 21 00:01:16,960 --> 00:01:17,730 OK. 22 00:01:18,180 --> 00:01:22,800 And then I need to put in a pair of round brackets at the end of my method name. 23 00:01:23,010 --> 00:01:28,350 And then I need to open and close my Mivart by using an opening curly brace followed by our closing 24 00:01:28,350 --> 00:01:29,340 curly brace. 25 00:01:29,370 --> 00:01:32,730 So as you can see here it's now showing us an error. 26 00:01:32,730 --> 00:01:36,780 So let's hover over the error area and see what's this error. 27 00:01:36,930 --> 00:01:40,640 This method must return a result of type int. 28 00:01:40,650 --> 00:01:43,760 So as you can see here we need to return a value of type. 29 00:01:43,800 --> 00:01:44,330 OK. 30 00:01:44,340 --> 00:01:47,800 Because the return type of this method is it. 31 00:01:47,820 --> 00:01:50,660 So here I want to create some variables. 32 00:01:50,760 --> 00:01:57,660 So the first variable is in A and then I assign a value to this variable. 33 00:01:57,660 --> 00:02:06,020 For example number 10 in the number 4 and then end result 34 00:02:08,650 --> 00:02:10,590 A plus B. 35 00:02:10,830 --> 00:02:13,720 Ok I can return this result from this month. 36 00:02:13,780 --> 00:02:14,290 OK. 37 00:02:14,380 --> 00:02:16,260 Return results. 38 00:02:17,150 --> 00:02:17,890 K. 39 00:02:18,310 --> 00:02:25,570 So as you can see here inside this method first I created this variable and then I created this variable 40 00:02:25,690 --> 00:02:33,220 and in line 55 I decided to actually add the value of these two variables together and that is going 41 00:02:33,220 --> 00:02:42,170 to assign the result of this operation with this result variable and in inline 36 and in line 46 I returned 42 00:02:42,170 --> 00:02:45,170 the value of that result variable from this method. 43 00:02:45,190 --> 00:02:45,870 OK. 44 00:02:46,240 --> 00:02:50,760 So as you can see here the data type of this result variable is in. 45 00:02:50,980 --> 00:02:53,910 And the return type of this method is int. 46 00:02:53,950 --> 00:02:57,650 OK so I can return this result variable. 47 00:02:57,670 --> 00:02:58,140 OK. 48 00:02:58,270 --> 00:03:00,910 So now I want to call this method from the same effect. 49 00:03:00,970 --> 00:03:08,320 So because this method returns a value of type anes we can actually directly output the return value 50 00:03:08,320 --> 00:03:10,050 of the sniffer to the console OK. 51 00:03:10,120 --> 00:03:17,980 So I can't just type in here or system that out that princeling and that inside the prentices I can't 52 00:03:17,980 --> 00:03:26,740 just refer to the name of my Meffert I can just refer to the name of my Meffert add two numbers together 53 00:03:26,950 --> 00:03:29,920 and then I need to put a semi-colon at the end of my statement. 54 00:03:29,920 --> 00:03:36,590 So now if I it on my project as you can see this value is now output to the console OK. 55 00:03:36,590 --> 00:03:40,930 So first when the program runs it's going to first execute this main method. 56 00:03:40,940 --> 00:03:41,530 OK. 57 00:03:41,750 --> 00:03:48,560 And inside that main fed you are actually trying to out food the return value of the Smurfette to the 58 00:03:48,560 --> 00:03:49,130 console. 59 00:03:49,130 --> 00:03:51,710 So then it's going to actually go inside this method. 60 00:03:51,710 --> 00:03:56,030 Add two numbers together and then it's going to execute these lines of code here. 61 00:03:56,030 --> 00:03:56,650 OK. 62 00:03:56,900 --> 00:04:01,970 And then it's going to output the return value of this Mefford to the console. 63 00:04:01,970 --> 00:04:05,230 So as you can see here this is the return value of this method. 64 00:04:05,240 --> 00:04:05,780 OK. 65 00:04:05,870 --> 00:04:09,820 Because this Smurfette returns a value of type integer. 66 00:04:09,830 --> 00:04:13,600 We can actually assign this Smurfette to another variable. 67 00:04:13,600 --> 00:04:15,580 With the end data type. 68 00:04:15,590 --> 00:04:16,290 OK. 69 00:04:16,580 --> 00:04:22,420 So for example I can create another variable int for example result. 70 00:04:22,960 --> 00:04:23,880 OK. 71 00:04:24,020 --> 00:04:26,370 And then I put an assignment operator. 72 00:04:26,570 --> 00:04:28,570 And then I referred to the name of my method. 73 00:04:28,610 --> 00:04:34,520 Add two numbers together and then I put a semicolon at the end of my statement. 74 00:04:34,520 --> 00:04:42,560 So now if I want to output the results to the console system that out that print land inside the practices 75 00:04:42,620 --> 00:04:49,390 I can refer to the name of my bad result and then I need to put in a semi-colon at the end of my statement. 76 00:04:49,400 --> 00:04:50,050 OK. 77 00:04:50,240 --> 00:04:55,090 So now if I run on my project as you can see it's going out with these two values for the console OK. 78 00:04:55,100 --> 00:05:00,610 So first when the program runs it's going to actually executed this main method and then it's going 79 00:05:00,610 --> 00:05:02,400 to execute this line of code. 80 00:05:02,580 --> 00:05:03,180 OK. 81 00:05:03,350 --> 00:05:06,940 So this is the value that is output to the console. 82 00:05:07,190 --> 00:05:07,890 OK. 83 00:05:08,170 --> 00:05:11,870 And and then it's going to actually execute these two lines of code here. 84 00:05:11,870 --> 00:05:12,470 OK. 85 00:05:14,150 --> 00:05:22,430 So as you can see here because this MF'er returns a value of type integer we can actually directly output 86 00:05:22,460 --> 00:05:23,870 that value to the console. 87 00:05:24,320 --> 00:05:28,820 As you can see here in line 13 you are actually outputting that value to the console. 88 00:05:28,820 --> 00:05:30,020 So this is the result. 89 00:05:30,200 --> 00:05:35,320 Or we can actually assign that value to another variable with the insulator type. 90 00:05:35,420 --> 00:05:39,430 And then we can actually output the value of that variable to the cops. 91 00:05:39,430 --> 00:05:40,240 OK. 92 00:05:40,550 --> 00:05:41,810 So this is that. 93 00:05:41,880 --> 00:05:44,010 OK for the number 14. 94 00:05:44,390 --> 00:05:50,060 So if I for example comment out this line of code here and if I run on my project again this is that 95 00:05:50,070 --> 00:05:51,340 value OK. 96 00:05:51,830 --> 00:05:53,810 So now let me show you another example. 97 00:05:53,960 --> 00:05:57,970 So first let me comment out these two lines of code here. 98 00:05:59,320 --> 00:06:01,710 Now I want to create another my fifth. 99 00:06:01,840 --> 00:06:03,910 So I just need to type in here static 100 00:06:06,550 --> 00:06:20,340 void OK the return type of My method is void and the name of my method is subtract two numbers OK. 101 00:06:20,380 --> 00:06:26,050 And then I need to put in a pair of round brackets at the end of my Meffert name and this time I want 102 00:06:26,050 --> 00:06:29,570 to specify that my method is going to have arguments. 103 00:06:29,620 --> 00:06:37,930 OK so the first argument is it and the name of my argument is name one. 104 00:06:38,590 --> 00:06:46,660 And the second argument again is in the name of my argument is not two and that I need to open and close 105 00:06:46,660 --> 00:06:51,920 my method by using an opening curly brace followed by our closing curly brace. 106 00:06:51,970 --> 00:06:56,230 So as you can see here inside the Meffert I can put in my statements. 107 00:06:56,230 --> 00:07:02,240 So now I want to create a variable in the name of my value. 108 00:07:02,260 --> 00:07:08,870 But as a result I want to actually subtract the first argument from the second argument. 109 00:07:08,890 --> 00:07:13,090 Now one minus not two. 110 00:07:13,150 --> 00:07:13,840 OK. 111 00:07:14,170 --> 00:07:17,690 And then I need to put in a semicolon at the end of my statement. 112 00:07:17,740 --> 00:07:21,210 So now I want to output the result to the console. 113 00:07:21,370 --> 00:07:28,510 So I just need to type in here system that out that the print line and inside the prentices I just need 114 00:07:28,510 --> 00:07:37,150 to refer to the name of my variable result and then I need to put in a semi-colon at the end of my statement. 115 00:07:37,180 --> 00:07:44,160 So here inside the main method or you want to call my method subtract two numbers. 116 00:07:44,210 --> 00:07:46,140 Nonviolent is 20. 117 00:07:46,360 --> 00:07:48,100 And number two is five. 118 00:07:48,250 --> 00:07:48,940 OK. 119 00:07:49,180 --> 00:07:54,980 And if you run my project now as you can see this is the value that is output to the console OK. 120 00:07:55,090 --> 00:08:00,970 So first when the program runs it can actually execute this main method and then it's going to execute 121 00:08:01,030 --> 00:08:02,160 this line of code here. 122 00:08:02,170 --> 00:08:03,780 Subtract two numbers. 123 00:08:04,030 --> 00:08:08,500 So the Smurfette accepts two values the first value is 20. 124 00:08:08,620 --> 00:08:10,190 And the second value is five. 125 00:08:10,270 --> 00:08:13,850 And then it's going to actually go inside the Smurfette. 126 00:08:13,900 --> 00:08:19,480 So as you can see here this is our friend and that it can actually execute the statements inside this 127 00:08:19,480 --> 00:08:19,830 method. 128 00:08:19,840 --> 00:08:20,290 So. 129 00:08:20,320 --> 00:08:26,860 So as you can see here in line 49 you are actually subtracting the value of the non-valid variable from 130 00:08:26,860 --> 00:08:28,450 the value of the not too valuable. 131 00:08:28,450 --> 00:08:29,210 OK. 132 00:08:29,620 --> 00:08:36,400 And we are actually assigning the result of this operation to the result variable and in line 50. 133 00:08:36,400 --> 00:08:41,300 We are actually outputting the value of the result variable to the console. 134 00:08:41,620 --> 00:08:43,420 So as you can see here this is that value. 135 00:08:43,420 --> 00:08:43,810 OK. 136 00:08:43,810 --> 00:08:46,140 So now I want to show you another example. 137 00:08:46,270 --> 00:08:50,560 So let me comment out this line of code here because I don't want to execute it. 138 00:08:50,620 --> 00:08:52,780 Now I want to create another method. 139 00:08:52,930 --> 00:08:54,930 So I just need to type in here static. 140 00:08:55,270 --> 00:09:00,160 And this time if it is going to actually return a float value. 141 00:09:00,460 --> 00:09:10,050 So the return type of my Meffert is float and the name of my method is divided 2 numbers. 142 00:09:12,550 --> 00:09:13,300 OK. 143 00:09:13,590 --> 00:09:19,620 And then I need to put in a pair of round brackets at the end of my Meffert name and inside the round 144 00:09:19,620 --> 00:09:20,500 brackets. 145 00:09:20,590 --> 00:09:24,270 I want to actually specify that my if it is going to have arguments. 146 00:09:24,290 --> 00:09:35,420 Ok so my first argument is float and the name of my argument is one and my second argument is again 147 00:09:35,470 --> 00:09:39,410 float and the name of my argument is number two. 148 00:09:39,680 --> 00:09:46,600 And then I need to open and close my Meffert by using edge and opening curly brace followed by our closing 149 00:09:46,610 --> 00:09:47,450 calibrates AK.