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Mutator method

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become more sophisticated. Many automatic mutators and accessors eventually get replaced by separate blocks of code. The benefit of automatically creating them in the early days of the implementation is that the public interface of the class remains identical whether or not greater sophistication is
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other than private and access it directly from outside the objects. Much finer control of access rights can be defined using mutators and accessors. For example, a parameter may be made read-only simply by defining an accessor but not a mutator. The visibility of the two methods may be different; it
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the class where they are defined often requires some additional thought. In the early days of an implementation, when there is little or no additional code in these blocks, it makes no difference if the private instance variable is accessed directly or not. As validation,
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to the variable to be modified is passed to the mutator, along with the new value. In this scenario, the compiler cannot restrict code from bypassing the mutator method and changing the variable directly. The responsibility falls to the
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are made private to hide and protect them from other code, and can only be modified by a public member function (the mutator method), which takes the desired new value as a parameter, optionally validates it, and modifies the private
4603:, the object system is a way to organize code that comes in addition to modules and units. As in the rest of the language, the object system has first-class values and lexical scope is used to control access to objects and methods. 194:. In these cases, no code blocks are created for validation, preprocessing or synthesis. These simplified accessors still retain the advantage of encapsulation over simple public instance variables, but it is common that, as 144:
or preprocessing of incoming data. If all external access is guaranteed to come through the mutator, then these steps cannot be bypassed. For example, if a date is represented by separate private
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In VB.NET 2010, Auto Implemented properties can be utilized to create a property without having to use the Get and Set syntax. Note that a hidden variable is created by the compiler, called
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Accessors conversely allow for synthesis of useful data representations from internal variables while keeping their structure encapsulated and hidden from outside modules. A monetary
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member. Unlike Java, no explicit methods are defined; a public 'property' contains the logic to handle the actions. Note use of the built-in (undeclared) variable
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Accessor functions can be less efficient than directly fetching or storing data fields due to the extra steps involved, however such functions are often
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may be used both to declare a private variable in a class and to provide either read-only or read-write public access to it respectively.
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In later C# versions (.NET Framework 3.5 and above), this example may be abbreviated as follows, without declaring the private variable
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This example illustrates the VB.NET idea of properties, which are used in classes. Similar to C#, there is an explicit use of the
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supports a getter and setter function syntax. In version 2 of the language getter and setter class/struct methods should have the
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options (even multiple times) to define reader methods, setter methods and accessor methods (a reader method and the respective
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Struct definitions are an alternative way to define new types of values, with mutators being present when explicitly required:
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Using the abbreviated syntax means that the underlying variable is no longer available from inside the class. As a result, the
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This is a simple class in Delphi language which illustrates the concept of public property for accessing a private field.
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extension specifies means to access a slot's reader and writer function names, including the ones generated with the
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is often useful for the accessor to be public while the mutator remains protected, package-private or internal.
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The following example shows a definition of a student class using these slot options and direct slot access:
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Defining individual accessor and mutator methods creates space for pre-processing or validation of the data
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is private, i.e. only visible from the Student class, and the "setter" and "getter" are public, namely the "
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would result in an error. Privileged access to the underlying variable is available from within the class.
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is private, i.e. only visible from the Student class, and the "setter" and "getter" is public, namely the
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accessor may build a string from a numeric variable with the number of decimal places defined by a hidden
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may appear where some internal access makes use of the newer code while in other places it is bypassed.
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Using traditional Objective-C 1.0 syntax, with manual reference counting as the one working on
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to ensure the variable is only modified through the mutator method and not modified directly.
47:, which returns the value of the private member variable. They are also known collectively as 5450: 4881:, individual accessor and mutator methods may be defined, or the metaprogramming constructs 199: 79: 4075:# Moose uses the attribute name as the setter and getter, the reader and writer properties 8: 5556: 4078:# allow us to override that and provide our own names, in this case get_name and set_name 137: 2141:;; The slot accessing options generate methods, thus allowing further method definitions 1783:
portion of the property must be present for assignment. Access can be restricted with a
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Mutator methods may also be used in non-object-oriented environments. In this case, a
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method). Slots are always directly accessible through their names with the use of
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mutator while for consistency the same private instance variables are accessed by
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offer a convenient alternative without giving up the utility of encapsulation.
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This example uses a Python class with one variable, a getter, and a setter.
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is used to create objects representing a student with only the name stored.
4049: 224: 2174:;; You could also check if a student with the new-number already exists. 82:
but they typically appear at different levels of the object hierarchy.
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for mutators and accessors in a single line—as for example C#'s
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Modern programming languages often offer the ability to generate the
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used to control changes to a variable. They are also widely known as
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In the examples below, a fully implemented mutator method can also
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representing a student with only the name stored, one can see the
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representing a student with only the name stored, one can see the
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Or (using a deprecated way to define accessors in Web browsers):
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Manipulation of parameters that have mutators and accessors from
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checks, preprocessing or other sophistication is added, subtle
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The alternative to defining mutator and accessor methods, or
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the input data or take further action such as triggering an
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where the mutator is defined provides an opportunity for
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CLOS itself has no notion of properties, although the
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added, requiring no extensive refactoring if it is.
5549: 156:variables, then incoming dates can be split by the 3692:3.2, generating the same code as described above: 234:which eliminates the overhead of a function call. 5529: 2378:// same effect as student.name("David") 5662: 5398:. Using another variable within the class named 3680:Using newer Objective-C 2.0 syntax as used in 5474: 97:In programming languages that support them, 43:methods. Often a setter is accompanied by a 5503:"Run Time Efficiency of Accessor Functions" 4973:Read-write simple public access to implied 3778:4.4 and up, syntax can be even simplified: 4947:Read-only simple public access to implied 4261:* @param string $ newName The name to set. 2968:Or (using prototypes for inheritance and 54:The mutator method is most often used in 5509: 5500: 2483:/// Get or set the name of the student. 14: 5663: 62:. According to this principle, member 2719:In this example constructor-function 75:. Mutator methods can be compared to 5577:"Functions - D Programming Language" 5280: 3832://Nothing goes here and it's OK. 3347: 1661:/// Gets or sets student's name 58:, in keeping with the principle of 24: 5394:, to correspond with the Property 25: 5682: 5477:"Automatic Properties in C# 3.0" 4154:PHP defines the "magic methods" 2402:// same effect as student.name() 2337:instance can be used like this: 242: 188:public string Name { get; set; } 3102:Or (without using prototypes): 1934:; student-name is setf'able 115: 5633: 5609: 5589: 5569: 5494: 5468: 3485: 1839: 1621:, which are a special type of 13: 1: 5671:Method (computer programming) 5537:"CLHS: 7.5.2 Accessing Slots" 5461: 2714: 1613:This example illustrates the 202:and requirements change, the 5137: 4165:In this example of a simple 2595:In this example of a simple 7: 5641:"PHP: Overloading - Manual" 5439: 4162:for properties of objects. 3193:Or (using defineProperty): 1787:-specific access modifier. 1144:"%s's new age = %i 1075:"%s's old age = %i 249: 237: 56:object-oriented programming 10: 5687: 4213:* @return string The name. 3984:Or, using Class::Accessor 4743:; => "Alice" 4594: 4323: 2407: 1846:Common Lisp Object System 5404: 5295: 5179: 5175: 5141: 5003: 4979: 4953: 4894: 4786: 4605: 4481: 4330: 4186: 4054: 3986: 3844: 3780: 3694: 3500: 3351: 3195: 3104: 2974: 2843: 2725: 2616: 2414: 2339: 2217: 1892: 1789: 1732: 1631: 1444: 1299: 1196: 961: 585: 413: 278: 253: 5557:"MOP: Slot Definitions" 4999: 4872: 4867:; => "Bob" 4779:; => "Bob" 3840: 2590: 196:system designs progress 124:blocks, is to give the 5517:"CLHS: Macro DEFCLASS" 5501:Tim Lee (1998-07-13). 5475:Stephen Fuqua (2009). 5446:Property (programming) 4149: 1292: 431:/* opaque structure */ 5621:developer.mozilla.org 5451:Indexer (programming) 1608: 1450:"Student.h" 1442:In file Student.cpp: 973:"student.h" 603:"student.h" 4016:follow_best_practice 2486:/// </summary> 2203: 1664:/// </summary> 1225:; ./$ < > $ @ 406: 80:operator overloading 4586:# bypass the getter 4571:# bypass the setter 4568:"Charlie" 4050:Moose Object System 4004:qw(Class::Accessor) 2480:/// <summary> 1881:MetaObject Protocol 1658:/// <summary> 1297:In file Student.h: 1018:"Maurice" 583:In file student.c: 411:In file student.h: 204:demands on the data 192:attr_accessor :name 4135:'set_name' 4123:'get_name' 3766:And starting with 2972:accessor syntax): 2150:set-student-number 2123:get-universal-time 2030:get-universal-time 1991:set-student-number 1194:In file Makefile: 419:#define _STUDENT_H 416:#ifndef _STUDENT_H 198:, the software is 5281:Visual Basic .NET 4843:set-student-name! 4834:"Alice" 4535:"Alice" 2372:"David" 2039:student-birthdate 1958:student-birthdate 1305:#define STUDENT_H 1302:#ifndef STUDENT_H 126:instance variable 16:(Redirected from 5678: 5655: 5654: 5652: 5651: 5637: 5631: 5630: 5628: 5627: 5613: 5607: 5606: 5604: 5603: 5593: 5587: 5586: 5584: 5583: 5573: 5567: 5566: 5564: 5563: 5553: 5547: 5546: 5544: 5543: 5533: 5527: 5526: 5524: 5523: 5513: 5507: 5506: 5498: 5492: 5491: 5489: 5488: 5479:. 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1036:student_get_name 1034: 1031: 1028: 1025: 1022: 1019: 1016: 1013: 1010: 1007: 1004: 1001: 998: 995: 992: 989: 986: 983: 980: 977: 974: 971: 968: 965: 959:In file main.c: 955: 952: 949: 946: 943: 940: 937: 934: 931: 928: 925: 922: 919: 918:student_get_name 916: 913: 910: 907: 904: 901: 898: 895: 892: 889: 886: 883: 880: 877: 874: 871: 868: 865: 862: 859: 856: 853: 850: 847: 844: 841: 838: 835: 832: 829: 826: 823: 820: 817: 814: 811: 808: 805: 802: 799: 796: 793: 790: 787: 784: 781: 778: 775: 772: 769: 766: 763: 760: 757: 754: 751: 748: 745: 742: 739: 736: 733: 730: 727: 724: 721: 718: 715: 712: 709: 706: 703: 700: 697: 694: 691: 688: 685: 682: 679: 676: 673: 670: 667: 664: 661: 658: 655: 652: 649: 646: 643: 640: 637: 634: 631: 628: 625: 622: 619: 616: 613: 610: 607: 604: 601: 598: 597:<string.h> 595: 592: 591:<stdlib.h> 589: 579: 576: 573: 570: 567: 564: 561: 560:student_get_name 558: 555: 552: 549: 546: 543: 540: 537: 534: 531: 528: 525: 522: 519: 516: 513: 510: 507: 504: 501: 498: 495: 492: 489: 486: 483: 480: 477: 474: 471: 468: 465: 462: 459: 456: 453: 450: 447: 444: 441: 438: 435: 432: 429: 426: 423: 420: 417: 402: 399: 396: 393: 390: 387: 384: 381: 378: 375: 372: 369: 366: 363: 360: 357: 354: 351: 348: 345: 342: 339: 336: 333: 330: 327: 324: 321: 318: 315: 312: 309: 306: 303: 300: 297: 294: 291: 288: 285: 282: 275: 272: 269: 266: 263: 260: 257: 246: 217:cross-validation 193: 189: 178: 174: 167: 163: 159: 155: 151: 147: 29:computer science 21: 5686: 5685: 5681: 5680: 5679: 5677: 5676: 5675: 5661: 5660: 5659: 5658: 5649: 5647: 5639: 5638: 5634: 5625: 5623: 5615: 5614: 5610: 5601: 5599: 5595: 5594: 5590: 5581: 5579: 5575: 5574: 5570: 5561: 5559: 5555: 5554: 5550: 5541: 5539: 5535: 5534: 5530: 5521: 5519: 5515: 5514: 5510: 5499: 5495: 5486: 5484: 5473: 5469: 5464: 5442: 5437: 5436: 5433: 5430: 5427: 5424: 5421: 5418: 5415: 5412: 5409: 5406: 5399: 5395: 5391: 5388: 5387: 5384: 5381: 5378: 5375: 5372: 5369: 5366: 5363: 5360: 5357: 5354: 5351: 5348: 5345: 5342: 5339: 5336: 5333: 5330: 5327: 5324: 5321: 5318: 5315: 5312: 5309: 5306: 5303: 5300: 5297: 5290: 5286: 5283: 5278: 5277: 5274: 5271: 5268: 5265: 5262: 5259: 5256: 5253: 5250: 5247: 5244: 5241: 5238: 5235: 5232: 5229: 5226: 5223: 5220: 5217: 5214: 5211: 5208: 5205: 5202: 5199: 5196: 5193: 5190: 5187: 5184: 5181: 5178: 5173: 5172: 5169: 5165: 5162: 5159: 5156: 5153: 5149: 5146: 5143: 5140: 5135: 5134: 5131: 5128: 5125: 5122: 5119: 5116: 5113: 5110: 5107: 5104: 5101: 5097: 5094: 5091: 5088: 5085: 5082: 5079: 5076: 5073: 5070: 5067: 5064: 5061: 5058: 5055: 5051: 5048: 5045: 5042: 5039: 5036: 5033: 5030: 5027: 5024: 5021: 5018: 5014: 5011: 5008: 5005: 5002: 4997: 4996: 4993: 4990: 4987: 4984: 4981: 4974: 4971: 4970: 4967: 4964: 4961: 4958: 4955: 4948: 4945: 4944: 4941: 4938: 4935: 4932: 4929: 4926: 4923: 4920: 4917: 4914: 4911: 4908: 4905: 4902: 4899: 4896: 4886: 4882: 4875: 4870: 4869: 4866: 4863: 4860: 4857: 4854: 4851: 4849:"Bob" 4848: 4845: 4842: 4839: 4836: 4833: 4830: 4827: 4824: 4821: 4818: 4815: 4812: 4809: 4806: 4803: 4800: 4797: 4794: 4791: 4788: 4782: 4781: 4778: 4775: 4772: 4769: 4766: 4763: 4760: 4758:"Bob" 4757: 4754: 4751: 4748: 4745: 4742: 4739: 4736: 4733: 4730: 4727: 4724: 4721: 4718: 4715: 4712: 4709: 4706: 4703: 4700: 4697: 4694: 4691: 4688: 4685: 4682: 4679: 4676: 4673: 4670: 4667: 4664: 4661: 4658: 4655: 4652: 4649: 4646: 4643: 4640: 4637: 4634: 4631: 4628: 4625: 4622: 4619: 4616: 4613: 4610: 4607: 4597: 4592: 4591: 4588: 4585: 4582: 4579: 4576: 4573: 4570: 4567: 4564: 4561: 4558: 4555: 4552: 4549: 4546: 4543: 4540: 4537: 4534: 4531: 4528: 4525: 4522: 4519: 4516: 4513: 4510: 4507: 4504: 4501: 4499:"Bob" 4498: 4495: 4492: 4489: 4486: 4483: 4480: 4479: 4476: 4473: 4470: 4467: 4464: 4461: 4458: 4455: 4452: 4449: 4446: 4443: 4440: 4437: 4434: 4432:# Setter method 4431: 4428: 4425: 4422: 4419: 4416: 4413: 4410: 4407: 4404: 4401: 4399:# Getter method 4398: 4395: 4392: 4389: 4386: 4383: 4380: 4377: 4374: 4371: 4368: 4365: 4362: 4359: 4356: 4353: 4350: 4347: 4344: 4341: 4338: 4335: 4332: 4326: 4321: 4320: 4317: 4314: 4311: 4308: 4305: 4302: 4299: 4296: 4293: 4290: 4287: 4284: 4281: 4278: 4275: 4272: 4269: 4266: 4263: 4260: 4257: 4254: 4251: 4248: 4245: 4242: 4239: 4236: 4233: 4230: 4227: 4224: 4221: 4218: 4215: 4212: 4209: 4206: 4203: 4200: 4197: 4194: 4191: 4188: 4182:setName('name') 4181: 4177: 4159: 4155: 4152: 4147: 4146: 4143: 4140: 4137: 4134: 4131: 4128: 4125: 4122: 4119: 4116: 4113: 4110: 4107: 4104: 4101: 4098: 4095: 4092: 4089: 4086: 4083: 4080: 4077: 4074: 4071: 4068: 4065: 4062: 4059: 4056: 4046: 4045: 4042: 4039: 4036: 4033: 4030: 4027: 4024: 4021: 4018: 4015: 4012: 4009: 4006: 4003: 4000: 3997: 3994: 3991: 3988: 3982: 3981: 3978: 3975: 3972: 3969: 3966: 3963: 3960: 3957: 3954: 3951: 3948: 3945: 3942: 3939: 3936: 3933: 3930: 3927: 3924: 3921: 3918: 3915: 3912: 3909: 3906: 3903: 3900: 3897: 3894: 3891: 3888: 3885: 3882: 3879: 3876: 3873: 3870: 3867: 3864: 3861: 3858: 3855: 3852: 3849: 3846: 3843: 3838: 3837: 3834: 3831: 3828: 3826:@implementation 3825: 3822: 3819: 3816: 3813: 3810: 3807: 3804: 3801: 3798: 3795: 3792: 3789: 3785: 3782: 3764: 3763: 3760: 3757: 3754: 3751: 3748: 3745: 3742: 3740:@implementation 3739: 3736: 3733: 3730: 3727: 3724: 3721: 3718: 3715: 3712: 3709: 3706: 3703: 3699: 3696: 3678: 3677: 3674: 3671: 3668: 3665: 3662: 3659: 3656: 3653: 3650: 3647: 3644: 3641: 3638: 3635: 3632: 3629: 3626: 3623: 3620: 3617: 3614: 3611: 3608: 3605: 3602: 3599: 3596: 3593: 3590: 3588:@implementation 3587: 3584: 3581: 3578: 3575: 3572: 3569: 3566: 3563: 3560: 3557: 3554: 3551: 3548: 3545: 3542: 3539: 3536: 3533: 3530: 3527: 3524: 3521: 3518: 3515: 3512: 3509: 3505: 3502: 3488: 3483: 3482: 3479: 3476: 3473: 3470: 3467: 3464: 3461: 3458: 3455: 3452: 3449: 3446: 3443: 3440: 3437: 3434: 3431: 3428: 3425: 3422: 3419: 3416: 3413: 3410: 3407: 3404: 3401: 3398: 3395: 3392: 3389: 3386: 3383: 3380: 3377: 3374: 3371: 3368: 3365: 3362: 3359: 3356: 3353: 3350: 3345: 3344: 3341: 3338: 3335: 3332: 3329: 3326: 3323: 3320: 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1755: 1752: 1749: 1746: 1743: 1740: 1737: 1734: 1727: 1724: 1723: 1720: 1717: 1714: 1711: 1708: 1705: 1702: 1699: 1696: 1693: 1690: 1687: 1684: 1681: 1678: 1675: 1672: 1669: 1666: 1663: 1660: 1657: 1654: 1651: 1648: 1645: 1642: 1639: 1636: 1633: 1626: 1611: 1606: 1605: 1602: 1599: 1596: 1593: 1590: 1587: 1584: 1581: 1578: 1575: 1572: 1569: 1566: 1563: 1560: 1557: 1554: 1551: 1548: 1545: 1542: 1539: 1536: 1533: 1530: 1527: 1524: 1521: 1518: 1515: 1512: 1509: 1506: 1503: 1500: 1497: 1494: 1491: 1488: 1485: 1482: 1479: 1476: 1473: 1470: 1467: 1464: 1461: 1458: 1455: 1452: 1449: 1446: 1440: 1439: 1436: 1433: 1430: 1427: 1424: 1421: 1418: 1415: 1412: 1409: 1406: 1403: 1400: 1397: 1394: 1391: 1388: 1385: 1382: 1379: 1376: 1373: 1370: 1367: 1364: 1361: 1358: 1355: 1352: 1349: 1346: 1343: 1340: 1337: 1334: 1331: 1328: 1325: 1322: 1319: 1316: 1313: 1310: 1307: 1304: 1301: 1295: 1290: 1289: 1286: 1283: 1279: 1276: 1272: 1269: 1266: 1262: 1259: 1256: 1252: 1249: 1246: 1243: 1239: 1236: 1232: 1229: 1226: 1222: 1219: 1216: 1212: 1208: 1204: 1201: 1198: 1192: 1191: 1188: 1185: 1182: 1179: 1176: 1173: 1170: 1167: 1164: 1161: 1158: 1155: 1152: 1149: 1146: 1143: 1140: 1137: 1134: 1131: 1128: 1126:student_get_age 1125: 1122: 1119: 1116: 1113: 1110: 1107: 1104: 1101: 1099:student_set_age 1098: 1095: 1092: 1089: 1086: 1083: 1080: 1077: 1074: 1071: 1068: 1065: 1062: 1059: 1057:student_get_age 1056: 1053: 1050: 1047: 1044: 1041: 1038: 1035: 1032: 1029: 1026: 1023: 1020: 1017: 1014: 1011: 1008: 1005: 1002: 999: 996: 993: 990: 987: 984: 981: 978: 975: 972: 969: 967:<stdio.h> 966: 963: 957: 956: 953: 950: 947: 944: 941: 938: 935: 932: 929: 926: 923: 920: 917: 914: 911: 908: 905: 902: 899: 896: 893: 890: 887: 884: 881: 878: 875: 873:student_get_age 872: 869: 866: 863: 860: 857: 854: 851: 848: 845: 842: 839: 836: 833: 830: 827: 824: 821: 819:student_set_age 818: 815: 812: 809: 806: 803: 800: 797: 794: 791: 788: 785: 782: 779: 776: 773: 770: 767: 764: 761: 758: 755: 752: 749: 746: 743: 740: 737: 734: 731: 728: 725: 722: 719: 716: 713: 710: 707: 704: 701: 698: 695: 692: 689: 686: 683: 680: 677: 674: 671: 668: 665: 662: 659: 656: 653: 650: 647: 644: 641: 638: 635: 632: 629: 626: 623: 620: 617: 614: 611: 608: 605: 602: 599: 596: 593: 590: 587: 581: 580: 577: 574: 571: 568: 565: 562: 559: 556: 553: 550: 547: 544: 541: 538: 536:student_get_age 535: 532: 529: 526: 523: 520: 517: 514: 511: 508: 506:student_set_age 505: 502: 499: 496: 493: 490: 487: 484: 481: 478: 475: 472: 469: 466: 463: 460: 457: 454: 451: 448: 445: 442: 439: 436: 433: 430: 427: 424: 421: 418: 415: 409: 404: 403: 400: 398:student_set_age 397: 394: 391: 388: 385: 382: 379: 376: 373: 370: 367: 364: 361: 358: 355: 352: 349: 346: 343: 340: 337: 334: 332:student_set_age 331: 328: 326:student_get_age 325: 322: 319: 316: 313: 310: 307: 304: 301: 298: 295: 292: 289: 286: 284:student_get_age 283: 280: 277: 276: 273: 270: 267: 264: 261: 258: 255: 252: 240: 191: 187: 176: 172: 165: 161: 157: 153: 149: 145: 118: 73:member variable 23: 22: 18:Accessor method 15: 12: 11: 5: 5684: 5674: 5673: 5657: 5656: 5632: 5608: 5588: 5568: 5548: 5528: 5508: 5493: 5466: 5465: 5463: 5460: 5459: 5458: 5453: 5448: 5441: 5438: 5405: 5296: 5282: 5279: 5180: 5177: 5174: 5142: 5139: 5136: 5004: 5001: 4998: 4980: 4954: 4895: 4874: 4871: 4787: 4606: 4596: 4593: 4482: 4331: 4325: 4322: 4187: 4151: 4148: 4084:'name' 4055: 4048:Or, using the 3987: 3845: 3842: 3839: 3781: 3774:, while using 3695: 3501: 3487: 3484: 3352: 3349: 3346: 3258:'name' 3240:defineProperty 3196: 3105: 2975: 2927:'name' 2888:'name' 2844: 2726: 2716: 2713: 2617: 2592: 2589: 2525:implementation 2415: 2409: 2406: 2340: 2218: 2205: 2202: 1985:student-number 1893: 1841: 1838: 1790: 1733: 1632: 1610: 1607: 1445: 1311:<string> 1300: 1294: 1291: 1197: 1168:student_delete 962: 762:student_delete 586: 485:student_delete 414: 408: 405: 279: 254: 251: 248: 239: 236: 221:data integrity 117: 114: 33:mutator method 9: 6: 4: 3: 2: 5683: 5672: 5669: 5668: 5666: 5646: 5642: 5636: 5622: 5618: 5612: 5598: 5597:"The D Style" 5592: 5578: 5572: 5558: 5552: 5538: 5532: 5518: 5512: 5504: 5497: 5483:on 2011-05-13 5482: 5478: 5471: 5467: 5457: 5454: 5452: 5449: 5447: 5444: 5443: 5403: 5294: 4988:attr_accessor 4978: 4952: 4893: 4890: 4887:attr_accessor 4880: 4785: 4668:define/public 4647:define/public 4604: 4602: 4574:>>> 4553:>>> 4538:>>> 4520:>>> 4505:>>> 4484:>>> 4342:# Initializer 4329: 4185: 4175: 4172: 4168: 4163: 4111:'Str' 4053: 4051: 3985: 3779: 3777: 3773: 3769: 3693: 3691: 3687: 3683: 3682:Mac OS X 10.6 3499: 3497: 3493: 3194: 3103: 2973: 2971: 2842: 2724: 2615: 2612:setName(name) 2605: 2602: 2598: 2413: 2338: 2216: 2210: 1891: 1888: 1882: 1877: 1847: 1788: 1731: 1630: 1624: 1620: 1616: 1443: 1298: 1195: 960: 584: 412: 247: 245: 235: 233: 228: 226: 222: 218: 213: 208: 205: 201: 197: 185: 180: 169: 143: 139: 134: 131: 127: 123: 113: 111: 107: 102: 100: 95: 93: 88: 83: 81: 78: 74: 69: 65: 61: 60:encapsulation 57: 52: 50: 46: 42: 38: 34: 30: 19: 5648:. Retrieved 5644: 5635: 5624:. Retrieved 5620: 5611: 5600:. Retrieved 5591: 5580:. Retrieved 5571: 5560:. Retrieved 5551: 5540:. Retrieved 5531: 5520:. Retrieved 5511: 5496: 5485:. Retrieved 5481:the original 5470: 5389: 5284: 5209:"" 4972: 4946: 4891: 4876: 4858:student-name 4783: 4598: 4327: 4173: 4164: 4153: 4099:'rw' 4047: 4028:mk_accessors 3983: 3765: 3679: 3496:Ubuntu 12.04 3489: 3192: 3101: 2967: 2840: 2718: 2603: 2594: 2411: 2384:student_name 2332: 2207: 1928:student-name 1922:"" 1889: 1878: 1843: 1778: 1725: 1612: 1441: 1296: 1193: 958: 582: 410: 241: 229: 211: 209: 181: 170: 135: 119: 116:Implications 103: 96: 84: 53: 48: 44: 40: 32: 26: 5645:www.php.net 4962:attr_reader 4883:attr_reader 4010:__PACKAGE__ 3746:@synthesize 3486:Objective-C 2614:" methods. 2215:attribute. 2063:student-age 2006:student-age 1840:Common Lisp 1006:student_new 645:student_new 455:student_new 386:student.age 320:student.age 190:and Ruby's 184:boilerplate 179:parameter. 5650:2021-07-06 5626:2021-07-06 5602:2013-02-01 5582:2013-01-13 5562:2011-03-29 5542:2011-03-29 5522:2011-03-29 5487:2009-10-19 5462:References 5293:methods. 4635:init-field 3783:@interface 3697:@interface 3503:@interface 2715:JavaScript 2183:new-number 2180:check-type 2159:new-number 2090:with-slots 1946::birthdate 1874:slot-value 1870:slot-value 1866:with-slots 1619:properties 200:maintained 142:validation 130:visibility 99:properties 92:developers 77:assignment 5168:) 5138:Smalltalk 4977:variable 4951:variable 4813:#:mutable 4755:set-name! 4701:super-new 4674:set-name! 4402:@property 4309:$ newName 4282:$ newName 4184:methods. 4178:getName() 3799:nonatomic 3793:@property 3768:OS X 10.8 3713:nonatomic 3707:@property 3252:prototype 3019:prototype 2608:getName() 2528:procedure 2450:procedure 2417:interface 2280:@property 2277:// Setter 2244:@property 2241:// Getter 2213:@property 2147:defmethod 2111:birthdate 2096:birthdate 2054:defmethod 2003:defmethod 1976::initform 1949::initform 1940:birthdate 1925::accessor 1919::initform 1885::accessor 1858::accessor 173:getAmount 87:reference 64:variables 49:accessors 5665:Category 5440:See also 5419:Property 5379:Property 5322:Property 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Index

Accessor method
computer science
method
object-oriented programming
encapsulation
variables
class
member variable
assignment
operator overloading
reference
developers
properties
validate
event
property
instance variable
visibility
block
validation
boilerplate
system designs progress
maintained
demands on the data
cross-validation
data integrity
bugs
inlined

C#

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