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// Put back the default constructor



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[book] [en] Pro C# 2008 and the NET 3.5 Platform Fourth Edition

// Put back the default constructor.

public Motorcycle() {}

// Our custom constructor.

public Motorcycle(int intensity)

{ driverIntensity = intensity; }

}

The Role of the this Keyword

Like other C-based languages, C# supplies a this keyword that provides access to the current class

instance. One possible use of the this keyword is to resolve scope ambiguity, which can arise when

an incoming parameter is named identically to a data field of the type. Of course, ideally you would

simply adopt a naming convention that does not result in such ambiguity; however, to illustrate this

use of the this keyword, update your Motorcycle class with a new string field (named name) to rep-

resent the driver’s name. Next, add a method named SetDriverName() implemented as follows:

class Motorcycle

{

public int driverIntensity;



public string name;

public void SetDriverName(string name)

{ name = name; }

...


}

Although this code will compile just fine, if you update Main() to call SetDriverName() and then

print out the value of the name field, you may be surprised to find that the value of the name field is an

empty string!




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