1 00:00:01,340 --> 00:00:05,870 Hi every rental in this lesson we are going to study this new topic strings. 2 00:00:05,930 --> 00:00:08,360 So for example you want to store something like this. 3 00:00:09,710 --> 00:00:11,150 So this is actually a string. 4 00:00:11,150 --> 00:00:12,920 This is an example of a string. 5 00:00:12,920 --> 00:00:20,180 So this thing cannot be stored in any integer Eddie we cannot stored the string hello inside it in detail. 6 00:00:20,210 --> 00:00:21,770 So what do we need. 7 00:00:21,770 --> 00:00:22,930 We need a one day mission. 8 00:00:22,940 --> 00:00:24,340 Correct Barry. 9 00:00:24,470 --> 00:00:27,360 So what is the difference between integer and connectivity. 10 00:00:27,380 --> 00:00:29,810 So everything will look very similar. 11 00:00:29,810 --> 00:00:32,260 So let's say you want to create an NDA area of size 10. 12 00:00:32,290 --> 00:00:40,000 So what will happen so this will be your index as you do and the last index will be index nine. 13 00:00:40,140 --> 00:00:41,600 And how much space. 14 00:00:41,640 --> 00:00:45,010 So for storing when digit I need four bytes. 15 00:00:45,030 --> 00:00:46,240 So the suspend. 16 00:00:46,260 --> 00:00:49,120 So the space will be 40 bytes. 17 00:00:49,140 --> 00:00:51,450 Now similarly how can you call it connectivity. 18 00:00:51,660 --> 00:00:52,900 So I will write correct. 19 00:00:52,970 --> 00:00:55,870 Any of that it be and let's say the size is 10. 20 00:00:55,890 --> 00:00:57,030 So what will happen again. 21 00:00:57,030 --> 00:00:58,220 Very similar. 22 00:00:58,500 --> 00:01:01,510 The Fostering mix is 0 and the last index is 9. 23 00:01:01,620 --> 00:01:07,340 And for storing one character I need one byte so this total is actually 10 bytes only. 24 00:01:07,620 --> 00:01:09,620 So everything is working quite similar. 25 00:01:09,630 --> 00:01:12,020 Now let's see the defense whether defense will come. 26 00:01:12,030 --> 00:01:15,050 So if you want to take input in beta what you will do. 27 00:01:15,060 --> 00:01:18,690 So first of all you will take how many elements you want to take input. 28 00:01:18,720 --> 00:01:22,840 So you will write to CNN and basically then you will use a for loop. 29 00:01:22,950 --> 00:01:30,100 So then I equals zero I list and and I bless plus and you will do something like this scene if I. 30 00:01:30,570 --> 00:01:33,810 So this is for taking input inside an integer area. 31 00:01:34,810 --> 00:01:37,820 Now how we will take input inside correct. 32 00:01:37,960 --> 00:01:39,970 So the connector area a little bit special. 33 00:01:40,000 --> 00:01:43,420 So if you will write C in the name that is B. 34 00:01:43,420 --> 00:01:45,210 So it will write CMB. 35 00:01:45,280 --> 00:01:46,750 So this will actually work. 36 00:01:46,840 --> 00:01:53,020 You do not have to use for loop for the character that is seen we work specially scene will work differently 37 00:01:53,230 --> 00:01:54,220 for connectivity. 38 00:01:54,910 --> 00:01:59,350 So what you can do if you like scene B and if you give then Butler took coding. 39 00:01:59,440 --> 00:02:06,910 So what will happen this coding will get stored in this C or B I N N G you do not have to use for loop 40 00:02:07,300 --> 00:02:11,260 for taking input inside you for taking input for the correct battery. 41 00:02:11,350 --> 00:02:16,990 So that's why I regret a little bit special now for printing the. 42 00:02:17,230 --> 00:02:20,170 Now for printing the content of the edit what you will do. 43 00:02:20,170 --> 00:02:26,560 Again you have to use a for loop so equals zero i.e. less than N I plus plus and you will write something 44 00:02:26,560 --> 00:02:32,410 like this C out of I know this thing is for printing the content of the area. 45 00:02:32,950 --> 00:02:36,530 So this is for and ready and for correct Barry. 46 00:02:36,610 --> 00:02:39,610 Again that things will work a little bit differently. 47 00:02:39,700 --> 00:02:40,690 So what will happen. 48 00:02:40,720 --> 00:02:46,330 You can likely write see out B if you will write the old then what will happen to the content of that 49 00:02:46,330 --> 00:02:47,410 it will get printed. 50 00:02:47,560 --> 00:02:54,190 So that will put will be according so seen and see out there working differently for the correct baddie 51 00:02:54,220 --> 00:03:02,790 because the correct word is a little bit special now. 52 00:03:02,820 --> 00:03:06,010 Now let's see again how can we take and putting corrected. 53 00:03:06,570 --> 00:03:09,020 So you are creating a baddie. 54 00:03:09,060 --> 00:03:10,690 Let's say the size is 10. 55 00:03:10,770 --> 00:03:13,640 So again what will happen. 56 00:03:13,860 --> 00:03:17,640 This will be your index 0 and your last read next will be the next 9. 57 00:03:17,640 --> 00:03:25,140 Now if you will write CMB and let's say you give the input coding so how coding will get stored. 58 00:03:25,500 --> 00:03:30,870 So this is C then 0 then B then I then n then G. 59 00:03:31,020 --> 00:03:32,130 So it will not stop here. 60 00:03:32,130 --> 00:03:36,360 So what will happen scene scene is working differently for character. 61 00:03:36,390 --> 00:03:42,360 So after you give the input what will happen a null character will get automatically appended. 62 00:03:42,390 --> 00:03:47,350 So this is big zero and takes one two three four and five. 63 00:03:47,400 --> 00:03:53,520 So at index six this null corrector we get appended automatically. 64 00:03:53,520 --> 00:03:54,280 So we call. 65 00:03:54,390 --> 00:03:55,740 So what is happening. 66 00:03:55,980 --> 00:04:01,010 So this null corrector we get automatically appended at the last. 67 00:04:01,140 --> 00:04:06,010 And this character the name of this character is actually another character. 68 00:04:06,100 --> 00:04:12,910 So this is actually a null character and it is asking value is actually zero. 69 00:04:13,900 --> 00:04:16,570 So now you will be thinking What is the use of this character. 70 00:04:16,570 --> 00:04:19,360 So so it looks as are Terminator 71 00:04:22,160 --> 00:04:26,260 so when you will write C out to be. 72 00:04:26,330 --> 00:04:27,170 So what will happen. 73 00:04:27,170 --> 00:04:34,140 I will go to this index zero I will print the content so I will print c then I will print or then D. 74 00:04:34,170 --> 00:04:40,020 Then I then LNG so the I n n g then what will happen I will try to print. 75 00:04:40,020 --> 00:04:40,820 So what will happen. 76 00:04:40,830 --> 00:04:44,890 I will reach this null character and the meaning of no good. 77 00:04:44,940 --> 00:04:46,290 Those actually are terminated. 78 00:04:46,320 --> 00:04:48,170 So what I will do I will stop. 79 00:04:48,210 --> 00:04:54,020 So as soon as I will reach it and then I will stop printing I'm repeating myself. 80 00:04:55,260 --> 00:04:57,740 For taking in pertinent time period we will write like this. 81 00:04:57,740 --> 00:05:02,720 C in B and let's say you're giving according saw to happen according will get stored in this manner 82 00:05:02,790 --> 00:05:07,420 and at the end another character will get automatically appended by C in. 83 00:05:08,310 --> 00:05:13,940 So this is a property of the correct battery and thus no character is actually going to work as a terminator. 84 00:05:13,940 --> 00:05:19,050 It's asking value is actually zero and this Terminator is going to be used when you are printing the 85 00:05:19,050 --> 00:05:20,620 content of the correct baddie. 86 00:05:20,670 --> 00:05:25,290 If you would like to see out what will happen you will go to the foster index basically next zero you 87 00:05:25,290 --> 00:05:30,150 will print the content of the edit until you reaches this terminating character. 88 00:05:30,450 --> 00:05:36,590 So as soon as you reach this new character you will stop printing as soon as we will reach this permeating 89 00:05:36,600 --> 00:05:36,960 character. 90 00:05:36,960 --> 00:05:41,410 We will stop printing so that's how the output is going to be according. 91 00:05:41,470 --> 00:05:49,740 Okay so let's take one example so for example you are creating links in the name of field at is actually 92 00:05:49,740 --> 00:05:52,810 name and let's say the size is hundred. 93 00:05:52,920 --> 00:05:54,750 So what will happen. 94 00:05:54,960 --> 00:05:57,250 So this is you Eddie. 95 00:05:57,330 --> 00:06:02,420 This is index 0 next one index 2 so index 1 index 2 and your last index would be 99. 96 00:06:02,760 --> 00:06:06,370 And this is your name Eddy correct. 97 00:06:06,410 --> 00:06:07,980 Now again if you will right. 98 00:06:07,980 --> 00:06:13,260 See in name and let's say you given put ABC. 99 00:06:13,260 --> 00:06:15,090 So what will happen even come here. 100 00:06:15,090 --> 00:06:21,390 We will come and see welcome it and I know look at it will come back in next 3 automatically. 101 00:06:21,480 --> 00:06:26,310 So now you can actually be appended automatically and if you write see our name. 102 00:06:26,400 --> 00:06:27,560 So what will happen. 103 00:06:27,630 --> 00:06:32,100 Print a brand to be brand C and then you will reach this null character. 104 00:06:32,130 --> 00:06:40,980 So stop printing so you will print a b and c now let's best bastard. 105 00:06:41,060 --> 00:06:45,650 Now let's write the code so that you guys can have a better understanding so the name of the file is 106 00:06:45,650 --> 00:06:47,360 click bait or TPP. 107 00:06:47,420 --> 00:06:48,550 So what do we want to do. 108 00:06:48,560 --> 00:06:55,510 I want to create a chaotic baddie so let's say the name let's say the new that is name actually the 109 00:06:55,510 --> 00:06:58,370 size is hundred and let's take and put 110 00:07:04,740 --> 00:07:05,550 enter your name 111 00:07:10,340 --> 00:07:16,140 so for taking and put inside a character you can likely use scene you do not have to use a for loop 112 00:07:16,480 --> 00:07:19,700 C name because correct bad. 113 00:07:19,770 --> 00:07:27,290 I was a special CNN CEO to work differently from them so you would name is. 114 00:07:27,420 --> 00:07:34,270 So what we'll do I will likely write she out name correct and I will write and line here. 115 00:07:34,350 --> 00:07:35,630 So what should be our output. 116 00:07:35,640 --> 00:07:39,870 So whatever you will enter will get printed here. 117 00:07:40,140 --> 00:07:41,310 So let's test up m 118 00:07:44,590 --> 00:07:49,540 let say my name is ABC the so your name is ABC. 119 00:07:49,570 --> 00:07:51,640 So our Gore is working fine. 120 00:07:51,790 --> 00:07:52,960 Now what is happening here. 121 00:07:56,990 --> 00:07:59,830 So let's say I'm ending the name ABC. 122 00:07:59,840 --> 00:08:00,580 So what did happen. 123 00:08:00,590 --> 00:08:10,300 This is you're correct Barry the name of this is actually name so this the last 16 is going to be nine 124 00:08:10,300 --> 00:08:10,570 game. 125 00:08:10,570 --> 00:08:12,080 This is index zero this is the next one. 126 00:08:12,070 --> 00:08:15,580 This is a mixed two and let's say you enter ABC. 127 00:08:15,580 --> 00:08:16,320 So this is a. 128 00:08:16,330 --> 00:08:21,890 This is B and this is C and automatically and know correct I will get appended at indexed 3. 129 00:08:21,970 --> 00:08:26,800 Now what will happen if at indexed for I write x. 130 00:08:26,860 --> 00:08:28,020 So what will happen. 131 00:08:28,090 --> 00:08:31,920 So if I will then the program will this actually get printed or not. 132 00:08:31,930 --> 00:08:36,080 So what I want to say if I do something like this Let's animal food. 133 00:08:36,160 --> 00:08:39,090 So initially the name of food is containing a garbage value. 134 00:08:39,220 --> 00:08:46,850 And if I do name all food it goes X and then I tried to write C O name. 135 00:08:47,200 --> 00:08:48,940 So what should be my output. 136 00:08:48,940 --> 00:08:53,620 I think my output should be ABC only because what is the proper Yossi out. 137 00:08:53,620 --> 00:08:57,950 So it was starting from the first character it will read e it will print a. 138 00:08:58,000 --> 00:09:04,750 Then it will print B then it will print c and then it will reach the null character was read as soon 139 00:09:04,750 --> 00:09:05,940 as it will reach it and then. 140 00:09:06,070 --> 00:09:13,340 I will stop printing so that's why my output is going to be ABC and not this X so this X will not be 141 00:09:13,340 --> 00:09:19,210 printed so let's test our program and let's see what will happen. 142 00:09:19,230 --> 00:09:23,550 So what I want to say is let's say I'm changing the food correct. 143 00:09:23,580 --> 00:09:26,620 So initially the food character is null sorry. 144 00:09:26,670 --> 00:09:30,150 Initially the fourth character is a garbage in garbage value. 145 00:09:30,150 --> 00:09:34,650 So let's say I want to make it the oh let's say x. 146 00:09:34,660 --> 00:09:40,020 So what will happen as discussed I would either Bush or ABC only. 147 00:09:40,020 --> 00:09:44,700 So and but as ABC and I would output is ABC only 148 00:09:48,190 --> 00:09:50,900 now what will happen if I do something like this. 149 00:09:51,010 --> 00:10:02,010 So my input was ABC so I have a then B then C then then and add the fourth character default index. 150 00:10:02,400 --> 00:10:08,870 I made the fourth index X so this is index 0 next one and next to index 3 and index 4. 151 00:10:08,890 --> 00:10:12,440 Now if I change the value of index 3 if I write dy here. 152 00:10:13,380 --> 00:10:20,230 So what I want to see if at the next three so I do next three analysts present if you will change the 153 00:10:20,230 --> 00:10:21,310 third index value. 154 00:10:21,370 --> 00:10:30,270 So if you will make a D and then if you will write C out the name then what should be our output. 155 00:10:30,420 --> 00:10:31,510 So what will happen. 156 00:10:31,650 --> 00:10:33,710 C out has a very standard property. 157 00:10:33,720 --> 00:10:35,570 It was starting from the first character. 158 00:10:35,670 --> 00:10:36,740 It will print a. 159 00:10:36,950 --> 00:10:43,710 Then it will print B then it will print C then it will print D because this is D. 160 00:10:43,770 --> 00:10:52,710 So ABC then it will print x and it will keep going on until it encounters no character. 161 00:10:52,800 --> 00:10:59,250 I be reading myself after printing ABC the X it will go to index wife then it will go to index X it 162 00:10:59,250 --> 00:11:06,120 will go to index 7 and it was and it will continue printing the elements and then it will not reach 163 00:11:06,240 --> 00:11:07,470 the null corrected. 164 00:11:07,800 --> 00:11:10,680 So as soon as it will reach an incorrect bet it will stop printing. 165 00:11:10,710 --> 00:11:15,460 Otherwise it will print everything so let's see. 166 00:11:15,500 --> 00:11:16,450 So what I want to do 167 00:11:20,300 --> 00:11:22,320 so I want to change the title character. 168 00:11:22,770 --> 00:11:28,680 So the title character was null because I'm going to insert I'm going to give in but ABC and later the 169 00:11:28,690 --> 00:11:32,060 title correct is Dino Laird's best up program 170 00:11:35,150 --> 00:11:36,350 so I'm going to give input. 171 00:11:36,380 --> 00:11:38,520 ABC. 172 00:11:38,700 --> 00:11:40,140 So this is my output. 173 00:11:40,170 --> 00:11:44,690 ABC X then a special character and then. 174 00:11:45,000 --> 00:11:46,020 So what is happening here. 175 00:11:47,040 --> 00:11:49,650 Again very simple logic. 176 00:11:49,650 --> 00:11:51,120 You give the input ABC. 177 00:11:51,120 --> 00:11:56,430 So this is a then b then c and automatically and then it will be appended. 178 00:11:56,490 --> 00:11:58,590 Then you change the value of nil. 179 00:11:58,620 --> 00:12:03,150 So this is Dino then at default and X you put X.. 180 00:12:03,360 --> 00:12:05,110 So what is the property of C out. 181 00:12:05,370 --> 00:12:06,820 So what should we do with name. 182 00:12:06,870 --> 00:12:12,690 It will print a it will print to be it will be in C it will happen to be it will print x and it will 183 00:12:12,690 --> 00:12:17,060 continue printing everything until it produce an electric bill. 184 00:12:17,310 --> 00:12:22,500 So and so this is index 0 1 2 3 4 and in next 5. 185 00:12:22,560 --> 00:12:28,920 So this is especially good at fighting this especially getting base presented then agent execs and misrepresent 186 00:12:29,280 --> 00:12:32,170 and add index 7 my network correctly present. 187 00:12:32,220 --> 00:12:34,360 So that's why it will stop. 188 00:12:34,530 --> 00:12:42,150 It will print only this much part so by John's agenda it's seven connect base present. 189 00:12:42,300 --> 00:12:51,880 How many can pick and be present because it is a garbage because everything is garbage so garbage values 190 00:12:51,970 --> 00:12:52,360 out there. 191 00:12:52,390 --> 00:13:00,310 And one of the God raised values happened to be a little character so from index 5 onwards from index 192 00:13:00,310 --> 00:13:07,670 5 onwards my character is containing garbage values and add index seven by Johns the garbage value is 193 00:13:07,760 --> 00:13:08,510 connected. 194 00:13:08,620 --> 00:13:11,680 So that's why we stop printing at index 7. 195 00:13:11,710 --> 00:13:17,160 So that's why my output is a B C D X and two special characters. 196 00:13:17,440 --> 00:13:19,210 So that's how it is working. 197 00:13:22,320 --> 00:13:23,580 Now if I could do one more thing. 198 00:13:23,610 --> 00:13:24,560 So what I'm doing here. 199 00:13:25,140 --> 00:13:28,800 So I'm giving input ABC and then I have none here. 200 00:13:28,800 --> 00:13:32,180 Then if I change the value of b if I will write and here. 201 00:13:32,190 --> 00:13:33,670 So what will be my output. 202 00:13:33,690 --> 00:13:35,120 So let's try to test. 203 00:13:35,130 --> 00:13:38,290 But am up and let's see what will be our output. 204 00:13:38,330 --> 00:13:42,450 So what I want to say I'm going to change the second character. 205 00:13:42,510 --> 00:13:48,640 So that means second Burmese Foster index so I want to change my first index. 206 00:13:48,640 --> 00:13:55,370 So instead of B I want to make it null and then let's see what we will output 207 00:13:59,200 --> 00:14:00,780 ABC. 208 00:14:00,810 --> 00:14:07,890 So now output is only by only eight because it is very obvious CO2 will print only the first character 209 00:14:07,950 --> 00:14:11,290 because the second character is going to be null and it will stop printing. 210 00:14:11,310 --> 00:14:12,430 So what I want to say. 211 00:14:12,480 --> 00:14:18,590 So enter your name you will give the value ABC and you are changing the first character to be noted. 212 00:14:18,600 --> 00:14:21,510 So this is null no then you are printing the name. 213 00:14:21,510 --> 00:14:25,850 So what will happen is the old will print e then see do will reach this new character. 214 00:14:25,860 --> 00:14:27,030 And it will stop printing. 215 00:14:27,030 --> 00:14:32,010 So that's why my output is only so that's why it is presented. 216 00:14:32,010 --> 00:14:35,820 So I think you now have a good idea how good it is book. 217 00:14:35,820 --> 00:14:40,010 So in the next radio we will solve a few questions so that you guys can have a better understanding. 218 00:14:40,020 --> 00:14:41,060 I to do it by.