1 00:00:00,560 --> 00:00:06,060 Is that we can actually concatenate strings together. 2 00:00:06,090 --> 00:00:06,610 OK. 3 00:00:06,780 --> 00:00:11,760 The string class includes a method for concatenating two strings. 4 00:00:11,760 --> 00:00:12,420 OK. 5 00:00:12,570 --> 00:00:20,840 So now as you can see the name of my string object is the are one that can concat as you can see. 6 00:00:20,940 --> 00:00:23,670 Now we can actually choose this option here. 7 00:00:23,790 --> 00:00:30,270 And as you can see here it's now showing us some information about this method inside the class. 8 00:00:30,300 --> 00:00:30,910 OK. 9 00:00:31,110 --> 00:00:38,120 So this method actually accepts an argument of type A string and the return type of this method is as 10 00:00:38,150 --> 00:00:44,400 strange and dismay if it is inside this three in class so here as you can see it's now showing us some 11 00:00:44,460 --> 00:00:46,740 information about this method. 12 00:00:46,930 --> 00:00:51,990 This Byford concatenates specified strange to the end of this strange. 13 00:00:51,990 --> 00:00:52,540 OK. 14 00:00:52,710 --> 00:00:59,720 If the length of the argument the string is zero then this strange object is returned otherwise a strange 15 00:00:59,760 --> 00:01:06,130 object is returned that that represents a character sequence that is the concatenation of the character 16 00:01:06,150 --> 00:01:12,840 sequence represented by this strange object and the character sequence represented by the arguments. 17 00:01:12,960 --> 00:01:15,810 So now let's actually choose this option here. 18 00:01:15,930 --> 00:01:22,830 And now I can actually put in a strong leader on here as you can see here we need to put in our string 19 00:01:22,890 --> 00:01:23,350 object. 20 00:01:23,370 --> 00:01:25,740 OK so I can't just put into double quotes here. 21 00:01:26,010 --> 00:01:29,180 And now I can actually put in another value. 22 00:01:30,900 --> 00:01:31,570 OK. 23 00:01:31,820 --> 00:01:36,880 And now I need to actually put in a semi-colon at the end of my statement. 24 00:01:37,010 --> 00:01:42,200 So now as you know this contrasts Smurfette returns a value of type. 25 00:01:42,200 --> 00:01:43,200 Strange. 26 00:01:43,230 --> 00:01:48,580 OK so now I can actually output this value directly to the console. 27 00:01:48,680 --> 00:01:51,590 Or I can actually assign this value. 28 00:01:51,590 --> 00:01:55,060 This returns value to another strange object. 29 00:01:55,090 --> 00:02:02,850 OK so now I want to show you both ways in order to make this concept more meaningful for you. 30 00:02:03,110 --> 00:02:10,760 So I just into the open here System start out that princeling and then inside the apprentice's I can 31 00:02:10,760 --> 00:02:15,000 just put this statement here inside of this prentices. 32 00:02:15,500 --> 00:02:19,760 And then I need to put in a semicolon at the end of my statement. 33 00:02:19,760 --> 00:02:25,100 So now if I write on my project as you can see that it's going to actually output this value to the 34 00:02:25,100 --> 00:02:28,150 console a value another value. 35 00:02:28,320 --> 00:02:34,310 OK so if we actually put a space here and if I get on my project again as you can see it's going to 36 00:02:34,310 --> 00:02:36,920 actually output this value to the console. 37 00:02:36,940 --> 00:02:45,020 OK so now let me get to comment out this line of code here and if I create another string object and 38 00:02:45,110 --> 00:02:48,520 the name of my string object is for example the are two. 39 00:02:48,560 --> 00:02:53,420 And then I need to put in an assignment operator here and then I can actually assign this statement 40 00:02:53,420 --> 00:02:56,610 here to my Esti are two a string instance. 41 00:02:56,630 --> 00:02:57,120 OK. 42 00:02:57,290 --> 00:03:00,190 And then I need to put in a semicolon at the end of my statement. 43 00:03:00,230 --> 00:03:04,770 So as you can see here the Smurfette returns a string value. 44 00:03:04,800 --> 00:03:09,060 Ok so I can actually put that returned value to this. 45 00:03:09,200 --> 00:03:10,910 It's the R to an object. 46 00:03:10,910 --> 00:03:11,500 OK. 47 00:03:11,670 --> 00:03:14,520 And now I can actually output that value to the console. 48 00:03:14,660 --> 00:03:19,340 So I just need to type in here or system that out that princeling. 49 00:03:19,790 --> 00:03:26,500 And then inside the prentices I can just refer to the name of my Esti are two object and then I need 50 00:03:26,500 --> 00:03:29,010 to put in a semicolon at the end of my statement. 51 00:03:29,060 --> 00:03:33,390 So as you can see here again it's going to actually output this value to the console. 52 00:03:33,440 --> 00:03:39,450 So there are lots of other effects that we can use on screen objects which you can find them inside 53 00:03:39,450 --> 00:03:42,300 the Java documentation's in the Oracle Web site. 54 00:03:42,300 --> 00:03:46,750 So make sure that you check those documentations later in this course. 55 00:03:46,760 --> 00:03:48,850 I'll talk more about those methods. 56 00:03:48,860 --> 00:03:52,710 I can actually call and other Meffert and this is the are to object for example. 57 00:03:52,730 --> 00:03:57,710 For example I can make the characters of this string object uppercase. 58 00:03:57,740 --> 00:04:04,510 So I just need to typing Esti are two dots to uppercase. 59 00:04:05,150 --> 00:04:05,590 OK. 60 00:04:05,690 --> 00:04:11,800 As you can see here the Smurfette returns a string object and this method is inside the string class. 61 00:04:11,810 --> 00:04:12,320 OK. 62 00:04:12,470 --> 00:04:16,960 So if I just choose this option I need to put in a semicolon at the end of my statement. 63 00:04:17,270 --> 00:04:20,300 So as you know this MF'er returns a string object. 64 00:04:20,300 --> 00:04:23,390 So I can't just directly outputs that value to the console. 65 00:04:23,510 --> 00:04:31,150 System that out that princeling and then inside the prentices I can just refer to the name of the Asti 66 00:04:31,150 --> 00:04:32,590 are two object. 67 00:04:32,660 --> 00:04:34,000 That's true. 68 00:04:34,300 --> 00:04:35,800 Uppercase OK. 69 00:04:36,050 --> 00:04:39,250 And then I need to put in a semicolon at the end of my statement. 70 00:04:39,320 --> 00:04:39,970 OK. 71 00:04:40,070 --> 00:04:44,600 Now if I had on my project as you can see this value is now output to the console. 72 00:04:44,650 --> 00:04:50,990 OK and remember that in this line of code here we are actually making a copy of the Esti are two object 73 00:04:51,020 --> 00:04:56,640 in order to make the characters of these a string object approaches. 74 00:04:56,650 --> 00:04:57,270 OK. 75 00:04:57,470 --> 00:05:05,540 If you want the characters of the 60 or two object to be uppercase forever you need to assign this method 76 00:05:05,540 --> 00:05:07,680 here to another string object. 77 00:05:07,790 --> 00:05:08,090 OK. 78 00:05:08,090 --> 00:05:11,300 As you can as you know this method returns a string object. 79 00:05:11,330 --> 00:05:12,050 OK. 80 00:05:12,050 --> 00:05:19,370 And if I actually assign the return value of this method to another as an object to the characters of 81 00:05:19,430 --> 00:05:21,800 that string object is going to be uppercase. 82 00:05:21,950 --> 00:05:30,260 But for this line of code you're actually temporarily making the characters of the ASCII are to object 83 00:05:30,470 --> 00:05:31,250 uppercase. 84 00:05:31,370 --> 00:05:41,190 And then after this line of code after line forthy actually just type in system that out that princeling. 85 00:05:41,690 --> 00:05:46,480 And that inside the prentices if I actually refer to the name of this or to object. 86 00:05:46,640 --> 00:05:52,100 The character of this object is going to be as normal as you can see here. 87 00:05:52,100 --> 00:05:52,910 OK. 88 00:05:53,000 --> 00:06:00,290 Now the characters of this as the are to object is normal but here in line 40 we just temporarily made 89 00:06:00,620 --> 00:06:07,680 the characters of this is the are to object to uppercase and then it actually changed back to normal. 90 00:06:07,770 --> 00:06:15,200 OK but if you want to change the characters of this s t r to object to uppercase for ever. 91 00:06:15,200 --> 00:06:21,190 I just need to assign the return value of this Mefford to another string object. 92 00:06:21,200 --> 00:06:28,460 So I just need to type in here as strange another as the R and then I need to put in an assignment operator 93 00:06:28,460 --> 00:06:34,890 here and then I need to put this statement here as a value to this as an object. 94 00:06:34,900 --> 00:06:35,440 OK. 95 00:06:35,560 --> 00:06:42,370 And now this and other is are object and now the characters of this and other Esti are object is going 96 00:06:42,370 --> 00:06:43,180 to be uppercase. 97 00:06:43,210 --> 00:06:49,600 So I just need to say I've been here system that out that printin and and in say the prentices I can 98 00:06:49,600 --> 00:06:52,720 just put into double quotes and say double quotes. 99 00:06:52,720 --> 00:07:01,810 I can just type in the characters of another or object are now uppercase and then I need to put up plus 100 00:07:01,840 --> 00:07:05,790 operator here in order to concatenate this strange here. 101 00:07:05,920 --> 00:07:08,730 This value of B. 102 00:07:09,070 --> 00:07:13,810 D and other s.t. or object and other Esti are objects. 103 00:07:13,840 --> 00:07:14,330 OK. 104 00:07:14,440 --> 00:07:17,010 And then I need to put in a semicolon at the end of my statement. 105 00:07:17,020 --> 00:07:17,570 OK. 106 00:07:17,920 --> 00:07:22,990 So now if I write on my project as you can see it's going to have this value to the console locate the 107 00:07:22,990 --> 00:07:28,690 characters of another object are now uppercase a value and other value. 108 00:07:28,870 --> 00:07:34,630 So now if we're actually putting a space here and if I it on my project again as you can see it's going 109 00:07:34,630 --> 00:07:38,340 to actually make this value here more readable. 110 00:07:38,380 --> 00:07:39,200 OK. 111 00:07:39,670 --> 00:07:48,400 And as you can see here now the characters of our and other object are uppercase and here if we actually 112 00:07:48,400 --> 00:07:52,950 want to output the value of the other a c or object to the console. 113 00:07:53,170 --> 00:07:55,360 Let's see how this is done. 114 00:07:55,430 --> 00:08:02,050 OK system turns out that princeling and an inside the apprentice's I can just revert to the name of 115 00:08:02,050 --> 00:08:03,860 my A.S.C. or object. 116 00:08:04,030 --> 00:08:10,900 And again if I run my project the characters and other Esti or object are uppercase. 117 00:08:10,930 --> 00:08:15,010 OK but the characters of the art object are normal. 118 00:08:15,010 --> 00:08:20,960 OK so if I just want to output the value of them as the two object to the console I can just type in 119 00:08:20,960 --> 00:08:24,150 here system that out that princeling. 120 00:08:24,760 --> 00:08:28,960 And then inside the apprentice's I can just refer to the name of the object. 121 00:08:29,170 --> 00:08:33,970 And as you can see here if I run my project as you can see it's going to actually output this value 122 00:08:33,970 --> 00:08:35,040 to the console OK. 123 00:08:35,230 --> 00:08:41,960 So now I can actually make the characters of the a c or two object lowercase. 124 00:08:41,980 --> 00:08:48,520 So in this case I can just type in here a system that's out that insulin and then inside Apprentice's 125 00:08:48,580 --> 00:08:56,320 I can just revert to the name of my object as the are to start to lowercase and then I need to put in 126 00:08:56,320 --> 00:08:58,270 a semi-colon at the end of my statement. 127 00:08:58,540 --> 00:09:03,370 And now if I go on my project as you can see it's going to output this value to the console OK. 128 00:09:03,730 --> 00:09:07,300 So I think that's enough for this tutorial. 129 00:09:07,300 --> 00:09:11,170 And in the next tutorials I'll talk more about this thing. 130 00:09:11,200 --> 00:09:13,650 Objects and string methods. 131 00:09:13,750 --> 00:09:17,820 But if you have any questions please post the discussion in of course. 132 00:09:17,870 --> 00:09:22,620 And thank you very much for watching and I'll see you in the next tutorial.