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18 Cards in this Set
- Front
- Back
- 3rd side (hint)
What is the formal declaration of an indexer?
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[attributes] [access modifiers] indexer-declarator {accessor-declarations}
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The indexer-declarator is a rather complex statement. Show its formal representation.
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type this [formal-index-parameter-list]
OR type interface-type.this [formal-index-parameter-list] |
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What are the allowed modifiers for an indexer?
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private
public internal protected new |
There are 5.
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What are accessors?
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use get and set as with properties.
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How are property values set and retrieved.
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Throught 'Accessors'. The get and set part of the property declaration.
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What is the formal representation of a property?
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[attributes] [modifiers] type identifier {accessor-declaration}
OR [attributes] [modifiers] type interface-type, identifier {accessor-declaration} |
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Are properties variables?
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No. Properties cannot be treated as variables. They cannot be passed as ref or out parameters.
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How is a static property manifested?
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A static property can only be accessed through a type name.
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Can 'this' be used to access a static property?
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No. Attempting to access a static property use 'this' is an error.
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Using 'name' as the private member of a class, create a get accessor for name. 'name' is type string.
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private string name; public string Name { get { return name; } } ... |
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Using 'name' as the private member of a class, create a set accessor for name. 'name' is type string.
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private string name; public string Name { set { name = value; } } ... |
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How is a read-only property created?
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Declare only the 'get' accessor.
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How do you create a write-only property? Why would you want to?
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Create only the 'set' accessor.
To build an internal use counter, for example. |
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Why not modify the value of a property in the 'set' accessor?
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This is considered bad practice as it will probably result in strang and mysterious bugs. Not to mention it my be hard to understand.
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Why not modify the value of a property in the 'set' accessor?
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This is considered bad practice as it will probably result in strang and mysterious bugs. Not to mention it my be hard to understand.
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Create an interface property called 'ITarsalFormula' having public property 'int tFormula'.
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public interface ITarsalFormula
{ //tarsal formula interface int tFormula { get; set; } } |
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If a class is inheriting from two interfaces and both have the property 'Length' (for example), how must you reference the 'Length' property in your code?
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You must use the fully qualified reference.
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Is the order of the 'get' and 'set' accessors within the property declaration important?
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No. They may appear in either order.
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